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Also see Benign Neglect, Missing History of Restoration of SF-88
Our spares are at risk of being given away
Nike SF-88 On-going MaintenanceThis page started (Sept 2014), an on-going effort.
Received April 3, 2016 from a group trying to restore a different Nike site -
" I do have a second request, if it isn’t too much trouble. Several months ago I was in touch with Audrey Clark of the US Army Donation Office. I last spoke with a gentleman from that office who informed me that SF-88 had requested to turn-in excess equipment to his office. He said that since we might be interested in receiving such equipment, it would be much simpler for you to transfer equipment to us directly rather than turn it in and have us Request it from his office. If that sounds like a good idea to you, would you be able to give me some idea of what equipment you’re going to turn in? If we can use any or all of it maybe we can make a deal to get it transferred to us and get it moved to our site. "
Unfortunately, Susan of the Golden Gate NPS doesn't talk with volunteers who restored SF-88 and are trying to maintain it. The left hand is unwilling to communicate with the right hand :-(( We are unable to get known spares that the original restorers gathered and saved. The NPS has locked up or taken these away.
For a specific example. With photo - "Battery Control van siren. Yes, bottom back side is gone, inside corroding. NPS has grabbed "our" spare, but paperwork delays ... One is on e-bay, but is not an artifact."
Now they may disappear further into limbo.
All these years the National Park Service has provided a ranger, porta-potties, telephone, mowing, ... of the area.
I think it amazing that such competent, caring, organized individuals were selected as site managers :-)) Definitely not the usually headquarters power grabbing chair fillers.
Enough of the serious stuff - need humor. On our Nike site in Chicago, C-41, the launcher guys called us IFC folks "pansies". Maybe the reason was because we didn't need 48 inch Stillson wrenches ;-)) We of course called the the Launcher guys rude crude names also.
This tool (volunteer owned !! ) was in the van in the SF-88 Launcher Area in 2016.
Table of Contents - Recent (Post 2013) History - most recent at top -
Equipment specific to SF-88
Log of work
- Kato 400 Hz motor generator - frequency converter, KatoRegulatorBoardSchematic-01.jpg, KatoInstructionManual.jpg
- Kato Regulator Card
- Acq antenna now "reliable", New dehumidifier for the RC van - May 18, 2022 - Greg Brown
- Alec and I got the Acq antenna to spin - April 14, 2022 - Greg Brown
- Acquisition Antenna Rotational Motor Removed - April 2, 2022 - Greg Brown
- Acquisition Antenna "Tub" Removal - March 31, 2022 - Greg Brown
- Acquisition Antenna Leg Replacement - March 3, 2022 - from Greg Brown
- Repaired Roll Up Door - Feb 23, 2022 - from Greg Brown
- A Magazine Elevator works again - Feb 4, 2022 - from Greg Brown
- "Peg leg" for Low Power Radar - Jan 26, 2022 - from Greg Brown
- Caulking holes in the 16 access plates around the elevator doors - Jan 13, 2022 - from Greg Brown
- The [Magazine A)] elevator mysteriously started working - Jan 5, 2022 - from Greg Brown
- Bad Day - December 31, 2021 - Greg Brown
- SF-88 has received $300 K in funding this fiscal year ... - December 13, 2021 - from Greg Brown
- LOPAR Acquisition Antenna gear box - December 08, 2021 - from Greg Brown
- Painting (rusting out) Launcher Rails - December 01, 2021 - from Greg Brown
- MotorGenerator and Missile Safety Board - October 31, 2021 - from Greg Brown
- LOPAR antenna doesn't rotate & search for manuals Sept 2021, mostly Greg Brown
- Power to the 2 IFC Vans - July 2021 from Greg Brown
- Alec and Greg lubricating elevator doors - June 2021 from Greg Brown
- Mouse Cleanup after inspection - March 25, 2021 from Greg Brown
- Inspection After One Year of Covid - March 22, 2021
- replacing 2 rusted hydraulic pipe lines in B pit. - March 4, 2020
- They say a woman's work is never done, same with maintenance - Jan 24, 2020
- Sick Acquisition Radar -01-11-2020
- Erratic Launcher - October 21, 2018
- Erratic Launcher - October 13, 2018
- Erratic Launcher - August 2018
- Mouse House in Computer - April 2018
- Missile Magazine, Sump Pump - March 2017
- Launcher Hydraulic Leak - Feb 2017
- B-Pit Elevator stuck in up position Oct - Nov 2016, Feb 2017 :-))
- Elevator Down Alarm Aug 2016
- and of course there is grass to mow and trim June 2016
- Loud Fan Bearing in BC Van May 2016
- Generator Building Conversion Mar 2016, May 2016
- And More Siren - Jan 2016
- More Siren - Dec 2015
- More work on the launcher Aug 2015
- SF-88 Launcher Elevator Time Delay Relay Replacement
- Magazine Relay Tester
- Magazine Relay Logic
- Magazine Elevator & Door Sequence and Timing Relays Feb 2015
- Launcher Hydraulic Cylinder Bearings Jan 2015
- Alert Siren - for the IFC BC van.
- Launcher area, Buildings
- Launcher area, Magazines
- Painting of IFC buildings on Wolf Ridge
Acq antenna now "reliable", New dehumidifier for the RC van - May 18, 2022 - Greg Brown
I had luck in troubleshooting one of the motor generator regulator boards.
Using my inexpensive amazon capacitor checker, I found a defective 100 mf. Electrolytic capacitor. I replaced it and we tested it today. It worked ! We now have a working spare. I have one other board to fix.
Today we ran the Acquisition Antenna for over 2 hours, with no problems.
We are putting the last pieces of the antenna together. The missing fiberglass radome cover is in need of latching hardware. We took some parts from the spare antenna along the fence. We have to get some small 4-40 screws to put the new latches on to secure the shroud.
As you saw on the previous email, the bigger de-humidifier was installed today. I like it because it is on wheels and has a relative humidity indicator. When we plugged it in it was reading 58% At 3 PM It was reading 37%
Alec and I got the Acq antenna to spin - April 14, 2022 - Greg Brown
Alec and I got the Acq antenna to spin late yesterday afternoon.
I had a 30 sec video of the antenna spinning, that I chopped down to 3 seconds to lower the file size. Play the .mpg, 686 KBytes
Alec would like to replace the bottom tub with a better one in storage.
Alec was successful in getting a spare regulator board on Saturday, so the motor generator [ in the generator building ] is working.
I have the bad one [ regulator board ] here along with another spare that has a badly corroded chassis. I will try to clean it up.
Here is a collection of pictures, a few from April 2nd
from Duane Fey to Greg Brown
Acquisition Antenna Motor
Acq Top Tub Board
Acq Top Tub Cover
Acq Rotation Contactors
Acq Motor Gearbox
Acq Ant Toasted Motor Windings
Acq Ant Alec
Acquisition Antenna Gearbox
Thanks for the great pictures. I’m glad somebody was taking them. 20 years ago when we were doing a lot of work, there were no digital cameras. We had to wait for developing to find that most were crap.
Kato 400 Hz motor generator - frequency converter
Received April 5, 2022 from Greg Brown
"I scanned the 15 page manual, for the Kato regulator board.
Just so I have my own copy.
We have proved the problem is in the board.
Not much circuitry, after a minute or 2 the voltage starts to wander.
I would say either bad capacitor or cold solder joint on the board."
Kato Instruction Manual
Received May 21 2022 from Greg Brown
FYI, enclosed is a picture of the motor generator regulator. The circuit board is called a pre-amp. The chassis contains multiple transformers and 2 large current transformers (CT)
Acquisition Antenna Rotational Motor Removed - April 2, 2022 - Greg Brown
(A little background from Ed Thelen. Today (the first Saturday of the month) was a normal SF-88 Open House. Docents and others usually show up well before the 12:30 opening time (say 10 AM) to chat, do light maintenance, and eat. The work below was performed before opening time.)
When I pulled up, Alec (Gyorfi), Jerry (Feicht) and Duane (Fey) were busy removing the bad gearbox from the Acquisition antenna.
Not a fun position!
Acq Motor behind Duane's head.
Heavy heavy hangs
over his head
(L>R) Alec, Duane, Jerry
Looks like a socket on extender.
Duane is very motivated to get things done. That energy is greatly appreciated, and progress was made.
The replacement gearbox was installed and the refurbished motor was tested.
So we are that much closer to seeing the antenna turn again, provided we get a regulator board from Battery Alexander to get the 400 cycle motor generator running again.
Still missing key to Battery Alexander. Talked with Al Blank about it on Saturday.
I did both vans (Battery & Radar Control Vans) for the public. Don (Echeverria) was unable to come because the busses were not running.
Acquisition Antenna "Tub" Removal - March 31, 2022 - Greg Brown
This has been a major, extended effort. See:
- LOPAR Acquisition Antenna gear box - December 08, 2021 - from Greg Brown
- LOPAR antenna doesn't rotate & search for manuals - Sept 2021, mostly Greg Brown
- Sick Acquisition Radar -01-11-2020
Enclosed are a few pictures of our Acquisition Antenna tear down job yesterday.
Note fork lift
Alec used a fork lift to remove the lower and middle tub.
Then we dropped the bottom pan from the upper tub to access the motor and gearbox.
We removed the motor.
It appears as if there are some broken teeth on one of the gears in the gearbox.
We have to test the motor as it was red hot on the day of the failure.
Acquisition Antenna Leg Replacement - March 3, 2022 - from Greg Brown
For "Before" pictures, click on "Peg leg" for Low Power Radar - Jan 26, 2022
Enclosed are the pictures of the Acq antenna leg replacement.
The date is wrong….I transposed the month and day
The following is an e-mail with photo that Greg sent to some NPS administrators
Alec told me there was a problem with the Grainger order that we placed back in October? We really need dehumidifiers, For the RC Van, Warhead Building, Assembly Building, and A Pit. The rust you see in the picture has occurred since the dehumidifier failed in the RC van, If we can’t get them through Grainger, could we try another vendor?
NPS SF-88 Volunteer
Repaired Roll Up Door - Feb 23, 2022 - from Greg Brown
Was at SF-88 today with Alec.
The first thing we did is repair a newly installed roll up door that a park service member broke. They tried to force the locked door open by brute force with the chain. The locking pins on the sides bent.
This door was cheaply made and broke easily. We had to cut off the bent locking pins so it would work again.
If it was one of the original doors, it would have been harder to break.
A Magazine Elevator works again - Feb 4, 2022 - from Greg Brown
[ A Magazine is where visitors go to view the underground part of the Nike site - U.S cities only -
The magazines were used to store missiles, and its elevator has a launcher for bring missiles up and down.
We currently use the B Magazine as work room and storage.
"So the pressure was on to get it working for the Saturday open house." ]
We had a successful day today, and the elevator in now working properly.
It can go down, before it would not.
Studied the manual and found the fix P26 - Sect IV. Enclosed is that page from the manual.
Check continuity between wire 51 and wire 64. (the 4 limit switches in series)
One thing leads to another, rusted rotting access plates adjacent to the elevator doors at ground level, leak water on to the limit switch. The mechanism gets dry and sticky and the water enters and corrodes the switch contacts and internal switching mechanism.
Door Locking Bar Limit Switch
I have been refurbishing the spare limit switches at home, so just clean up the switching mechanism, lubricate, and pop in a cleaned up unit.
Refurbished Limit Switch
Then there is the dehumidifier issue, or lack there of.
Alec and I lined up 9 broken units that have been in the junk pile for years. There were also broken units in A pit and the warhead building. Hopefully Al has ordered them?
"Peg leg" for Low Power Radar - Jan 26, 2022 - from Greg Brown
We removed the rusted leg section and put wood blocks underneath for support.
The problem is all the legs are rusted and must be fixed. See the broken off leg on the first picture. Alec jacked up the leg support with a handyman jack. The leg just came apart. The challenge will be fabricating these as we have not found replacements
Caulking holes in the 16 access plates around the elevator doors - Jan 13, 2022 - from Greg Brown
We are currently caulking holes in the 16 access plates
around the elevator doors.
This plate was so rusted that
we had to cut the old one in half
to remove the rotted part.
We had another plate that we cut and fitted in.
The [Magazine A] elevator mysteriously started working - Jan 5, 2022 - from Greg Brown
Alec and I
The [Magazine A] elevator mysteriously started working.
So we did repairs on the diamond plates around the elevator doors that are rusted and leaking
Adding longer bolts with nuts underneath and sealing the sides with black silicone caulk to keep the rain water out.
You can see how rusted the access plates are.
Rusted access plate
Bad Day - December 31, 2021 - from Greg Brown
Went to SF-88 yesterday, bad day.
We had planned to fix one of the diamond plates that on the outside of the elevator doors that was pulled up on A pit.
So we raised the elevator on the top but then it would not go down.
Problem…. one of the Door open / closed limit switches not working. System thinks the door is closed.
So had to apply voltage to the Door Close relay CR-6 with a jumper to bring down the missile.
We jury rigged a push button to do that function on the side of the hydraulic unit.
To access the door limits are a bear. Here is a picture of the [orange] ladder to get near the switch.
But it is unsafe and you still cannot even see what you are working on. We had to move 2 missiles to get the ladder in.
There is much water coming down in the area where the ladder is, and I think that is where the problem is.
Problem is you have 4 door switches in series. only one can stop the show.
I believe the rain has caused things to swell, and the limit switch needs adjustment.
When things dry out, it may work again, or maybe not. either way we need to fix it now.
Happy New Year !
Wednesday, [Jan 5, 2022] Alec and I will try to get the elevator working again.
SF-88 has received $300 K in funding this fiscal year ... - December 13, 2021 - from Greg Brown
SF-88 has received $300 K in funding this fiscal year to upgrade buildings and facilities facilities Yerba Buena Engineering and Construction received a contract to install the launcher rails that have been fabricated some years back.
That work is almost completed. Also under that same contract, removal of trash and surplus equipment from the B pit area.
Another company received contracts to replace the roofs on the Warhead and the Assembly Building.
Our Gratitude to NPS Management for Historical Restoration of SF-88
LOPAR Acquisition Antenna gear box - December 08, 2021 - from Greg Brown
Much happened yesterday at SF-88
Alec moved the missile storage tubes that were near the warhead bldg. I asked him what was inside of them.
He said most have missiles, some of which were taken from a ship that sank. I would like to know the rest of that story. He said other tubes were filled with “stuff” Not nike stuff, but electrical stuff that was part of the give away from various places.
I would think at some point, an inventory should be done.
We started to work on the Acquisition Antenna. It was a miserable day, cold and wet fog.
Alec is making a gasket for the gearbox in the picture. We went out to the antenna and opened the side cover. Looking at the sight glass on the gearbox, the oil went dry. Everything is rusted so bad.
We need access to Battery Wallace to find the spare LOPAR antenna, if the antenna is to be repaired.
Then Alec noted that one of the outrigger supports was so rusted it had broken in half, Taking the antenna out of level. Now we have to find a replacement outrigger arm. Alec says there was one at Battery Wallace.
Ed Thelen here - Requests for access to "our" material in Battery Wallace have been made for several reasons over the past five years. The result is always "wait". I'm getting more paranoid - has the Nike material in Battery Wallace been removed, and no one wishes to admit it ???
Drawings of the Nike LOPAR gear box
Pages 110 & 114 in TM-9-1430-244-34 (not on line yet)
Page 110, Page 114,
Painting (rusting out) Launcher Rails - December 01, 20212 - Greg Brown
I was at SF-88 today. The contractors working on the launcher rails needed their work tested. Alec and I raised a missile and moved it over on the rails.
Al Blank wants to be able to have 4 missiles on the launchers. Not going to happen until we grind off the rust and paint the launcher rails So he asked us if we would do just that. We agreed
That will be one big job. - Sounds like a major work party :--))
MotorGenerator - October 31, 2021 - from Greg Brown
Alec and I were at SF-88 on Thursday, and had success with the motor generator.
Reading the manual helps.
Kato Regulator Adjustment
I found in the manual that the voltage adjustment needs to be set with a voltmeter on terminals E1 & E3 Prior to that, it was being tweaked at random, out of the range of the regulator. By guess and by golly.
Next we will try to get the ACQ antenna working.
I am going next Thursday.
For a list of some of the manuals Amanda scanned, click here.
The Manuals that Amanda scanned are a treasure trove.
I have gone through them. There is a ton of information.
I have been trying to “lift” some of the graphics.
For me it is a multi-step process
Alec and I have another project.
The Missile safety board that has been in hiding in the B Pit.
We want to put it out on display. But where to put it?
In A Pit in the Blast room? Or Somewhere in the A pit magazine for the public to see? Terry has made up 12 red streamer flags on her sewing machine to hang on the board.
I am thinking the A Pit Magazine Personnel room is probably the best place, but the public is rarely taken back there.
Please refresh my memory….. The Safety streamers were placed on,
[ If you know, please advise Greg Brown at gregorio_cafe @ comcast . net ]
- The booster shorting plug. (Squib )
- Barometric Probe?
- Other mechanical part on the launcher ?
- Maybe you or someone else knows
Painting of IFC buildings on Wolf Ridge
The IFC buildings and radar towers on Wolf Ridge looked like this in 1999.
They have been painted by contractors to the National Park Service, and "tagged" by others.
Photos and text by Greg Brown.
Launcher area, Magazines - Section B
This panorama is of one corner of the Section B area. It is intended to stress cabling. A Nike site has lots and lots of cables - more than you are likely to imagine. There is quite a shortage of cables for this restoration. Enough for one launcher in A section. (Bud Halsey tried to get some launcher cables from Taiwan, but international ocean travel is complicated and expensive.) This is a 360 degree panorama of the Section B area. It shows some of the equipment stored above ground.
You might ask what drives the missile elevator up and down, and when raising the elevator performs the sequence of raising the elevator a little too high, activating the locking bars, and gently lowering the elevator onto the locking bars - and related sequences.
Hydraulic Pump Unit and Control Boxes Elevator electric motor and hydraulic pump Alec Gyorfi goes where angels (you and me) fear to tread ;-)) To look at the elevator control boxes and Circuit Breakers and the Elevator Relays and the Elevator Time Delay Relays
for proper sequencing
We need a smile - the above is serious business.
How about overhauling the carburetor for the 5 ton truck so that it doesn't cough and sputter so much ?? Here is Frank, enjoying a day off, with smelly chemicals, grimy glop, tiny parts to lose, "rebuilding" that carburetor. Do you get the idea that restorers are a bit deranged ??
Look at that big smile. The fumes must have gotten to him. a close up of the grimy solvent - And here is Frank, trying to keep his hands clean with those awful gloves, using an air blast to clean the cleaner out of the carburetor. The nearby box is the carburetor re-build kit with new gaskets, metering jets, etc.
Launcher hydraulics and power
The insides of launcher cylinders can get pitted over time.
This is the hydraulic pump assembly to power the launcher hydraulic cylinder (above) This is a stripped launcher which shows the mounted hydraulic cylinder better. The force from the cylinder raises the launcher arm to near vertical. This unit converts 60 Hz commercial power to 400 Hertz for the launchers. It and several other unit came (free) from Pacific Bell. The converter is in this van near the launcher. The 400 Hertz unit must be close to the launchers, or the cable resistance will cause low voltage, motor stalling and protective breakers to chatter.
Alec Gyorfi by the home made cylinder honing machine. The honing "stones" and connected by a long shaft to an electric drill. The electric drill is moved up-and-down by another motor. It looks crude, but it works just fine :-)) This "O Ring" helps confine high pressure hydraulic fluid. The front unit is the piston (with its own "O Ring" and the cylinder rod which also must have a high polish to help the "O Ring" in the cylinder head have a long life. This "O Ring" helps confine high pressure hydraulic fluid.
Launcher area, Buildings
Mid-September 2014 the volunteers were invited to help repaint the main room of the assembly building, Sept 16, first coat, Sept 17, second coat.
Happily, for us volunteers, all the cleaning and prepping the building interior had been accomplish Monday Sept 15 by
Museum Management Branch employees (Nicole Hayduk, Justin Cleveland, Lulu Chye, and Josh Willis) :-))
As you know all too well, half (or more) of a paint job is "Prep Work"
- If you don't know, ignorance is bliss !! ;-))
All we volunteers had to do was spread white paint on the desired surfaces :-)) excluding wires and pipes not already painted.
The painting crew was:
- Al Blank, site manager (Wednesday)
- Nicole Hayduk, NPS Museum Management Branch employee (2 days)
- Justin Cleveland, NPS contractor on the Nike Site Preservation Project (2 days)
- Greg Brown, volunteer (Tuesday) brought extra ladders and equipment
- Sarah Koenen, NPS (Wednesday)
- Gordon Lunn, volunteer (2 days)
- Ed Thelen, volunteer (Tuesday)
- Mary ???, Interpretation Division Intern (Wednesday)
with a cameo appearance by
- Susan Ewing Haley, curator, who brought brownies :-))
The following pictures were contributed by Nicole Hayduk and Greg Brown
Ready?? Paint !!
Ed, "Me? Work?"
Others Nicole, Justin
Greg "getting hi"
Justin & Mary
Beams don't roll well
Gordon & Al
Al, after getting formal
The bad news
The rest of the site
is corroding away.
The west side
of this building.
West side Assy Bldg
West side Assy Bldg
Alert Siren - for the IFC BC van.
One of the fun features of the SF-88 Nike Site is the Alert Siren. Raising the US flag and a hoot on the siren signal the start of visiting hours ;-))
Oddly, the trouble shooting was confusing. A collection of probes, volt meters, ohmmeters to no avail :-(( - lets blame van schematics we couldn't find, and operating atop a ladder - not shaky trouble shooting skills ??
Unfortunately, in the summer of 2014, the old reliable IFC BC van siren quit.
Then one day, in late August 2014, the siren would howl again. Some one (who?) found a loose/corroded wire in the rusted out back of the siren and "fixed" it.
Note the newly taped up power cord and fresh ground connection.
But clearly the lower back of the siren body is in serious corrosion trouble. Popular rumor indicates that Golden Gate NPS should have two of these sirens, spares obtained from China Lake in 1996 - somewhere - but the likely foot dragging and paperwork ...
Possession is power, I got 'em, I got the power.
Dare we tape a protective clear plastic bag over the whole assembly until ... ??
Greg Brown found several RED sirens on e-bay for $300, which claimed to be 24 volt - just the voltage we need.
Maybe sandblasting the red plastic would enable white paint to adhere adequately ?
Unfortunately, Federal Signal says that model is 120 volts. A question to be resolved.
Sample sound ;-))
Launcher Hydraulic Cylinder Bearings Jan 2015
Greg Brown and I (Ed Thelen) showed up early for the open house - and found Jerry Freight and Alec Gyorfi in the Launcher area, near B pit (magazine) with large wrenches hard at work. (Pictures of Ed Thelen standing about "stupervising" have been deleted ;-))
Greg and I came upon this scene of honest men doing honest work. Close threads, long shaft, lotsa tiny turns :-(( Almost at the end of the 1 foot threaded shaft Now, all "we" have to do is get that center shaft out. This whole exercise is to get some Hydraulic Cylinder Bearings that are no longer stocked by Ordnance :-((
Magazine Elevator & Door Sequence and Timing Relays -from Greg Brown - Feb 2015
Very Preliminary, pictures to be added and verification sought
Background: by Ed Thelen
As originally planned, Nike was to be all above ground. Apparently before the first sites were installed, existing Army rules of explosives above ground in civilian areas were discovered. To satisfy the distance requirements in suburban areas would have required procurement of several hundred acres of expensive property for each launcher area. (Or totally impractical on various waterfronts in Chicago, Milwaukee, Detroit, New York etc.)
I imagine, without "proof", that this major upset caused quite a stir - the solution was to dig "magazines" into the earth, and use elevators (40 ft. long) to lift the missiles, with their on-board explosives, from the underground magazines to the above ground launchers and racks.
Common experience with building elevators indicates that there are "rules" build in concerning
- opening and closing doors
- interlocked with the vertical movement of the elevator
under automatic control so people don't hurt themselves or equipment.
The automatic control in that century was by relays.
Greg Brown is helping maintain and/or change out door and elevator control relays in the magazines. He purchased some "time delay" relays then went up Sat Feb 21, 2015 to help Alec Gyorfi.
Here is Greg, checking things out. (Candid Camera ;-) That black conical thing is a lamp to illuminate the dark corners.
Relays wear and age. Time delay relays especially are sensitive to age related timing errors. Here a page of a Granger catalog Greg Brown uses. Some of the relay types used in the original Nike Magazine installation are still available, but now EXPENSIVE. Note that the doors swing down slightly so that the Locking Lugs can lock the elevator. Clearly, with so many interacting components, automatic sequence control is required for save operation with possibly sleepy, hurried, just being trained recruits. Part of the hydraulic system which powers the elevator up and down, and powers the Locking Lugs.
- Small motor opens the doors
- Starts the elevator lift for 1.5 sec.
- Then the big motor takes over during the lift sequence.
- When the elevator gets near the top, a limit switch trips and the small motor finishes the sequence and sets the locking pins.
Greg Brown's Feb 21, 2015 report
Alec really knows the sequence of events, I can tell you what I think it is, but I could be wrong. Trusting to memory isn’t the best.
- The relay change out went well, but I only got one changed in B pit.
- They have two motors, one small, which starts and slows near the top.
- The big one kicks in 1.5 sec after the small one starts.
- Spent more time researching and testing the old one to figure out the switching and times with a AC cheater cord.
- So the small motor, # 1 is new and works.
- 3 more to go in B pit.
- The next ones should go quicker.
- Small motor opens the doors
- Starts the elevator lift for 1.5 sec.
- Then the big motor takes over during the lift sequence.
- When the elevator gets near the top, a limit switch trips and the small motor finishes the sequence and sets the locking pins.
Old pneumatic time delay relay, units being replaced. New Relay Old relay New time delay relay in Motor cabinet 2 (big motor) see huge contactor, 480 volt 3 phase.
March 14, 2015
Time delay relays for the magazine elevators have deteriorated. Need replacing.
Alec Gyorfi and Greg Brown went after "B Pit". Here are Greg's pictures.
Elevator control buttons on elevator. View from the bottom of B pit. This is the workshop and storage area for site SF-88 Picture of elevator hydraulic pump motors, foremost motor is the small motor # 1 Motor to the back is motor # 2, which does most of the lifting. Three electrical control cabinets, Left is Motor # 2, Middle is Motor # 1, Right is Control relay cabinet. Motor control cabinet #2, white device on left is the new time delay relay. Control relay cabinet. red relays are the new time delay relays. This type of relay is replacing the weary pneumatic type When all of the above, and more, work correctly, we get to see the missile on the surface.
Merge into above section
SF-88 Launcher Elevator Time Delay Relay Replacement.
Several years back, Historic Nike Missile Site SF-88 volunteer Alec Gyorfi Told me they had problems with the old pneumatic time delay relays in the elevator control cabinets. They were failing, or could not maintain a consistent delay time. Direct replacement relays were hard to get and expensive. The elevator controls are dated 1954, which makes them 61 years of age.
Greg Brown and Alec had looked at some solid-state replacement units. An initial test in B-Pit with some solid-state units purchased on EBAY. They worked well. We submitted an order to SF-88 Ranger Al Blank for replacement units to retrofit both A and B Pit elevator controls. They were received in record time for government work, (one week). They were installed on May 16, 2015
New Relay - Auxiliary Elevator Control Cabinet
Elevator control buttons
Elevator Control Cabinets
Elevator front view
Elevator A Pit
Internal Pneumatic Controls
Nike inside the magazine
Nike at above ground
New Relay - full cabinet view
New Solid State Relays
Elevator doors open
Old Time Delay Relays
Elevator data plate
Pump Rear Pneumatic Controls - side view . .
Magazine Relay Logic
Line Diagram 151022-D3
"Connections for AAA Magazine Hydraulic Elevator & Door Controller Relay Panel"
Magazine Relay Tester - July 2015
from Greg Brown
The Timer Relay Kludge
Left Photo is relay in idle state.
Right is relay in energized state, after delay.
I love making Kludges…
August 1, 2015, Greg and Ed Thelen arrive "early", but Alec Gyorfi and Jerry Freight were already working - on our only working launcher.
Pictures by Greg Brown, text by Ed Thelen (knows the IFC, not the Launcher area)
Nike, Tip It Up
A launcher's basic task is to tip the missile, with its 1,000 pound war-head, hydraulic system for the fins, guidance package, sustainer motor, and booster, and launching rail - to almost vertical, in a timely and reliable manner
Nike - Being Tipped Up
Jerry Freight (red cap) and Alec Gyorfi are chasing a groaning sound, which indicates a problem. Asked about the wheel/box pointed to by the white arrow, Alec said that is the "Inching Wheel" to exactly position the launching rail on the launcher.
Tools For That Big Thing?
These dental size tools do not seem appropriate for that monster missile and launcher.
Alec, Typical Worship?
Here is Alec, in a typical pose. Hard to get votes this way ?? But he keeps the launcher area functioning. By the way, there are four mighty hydraulic cylinders to hoist the missile, one is off picture to the right.
Alec Still Praying??
Apparently it takes a lot of prayer to keep this 60 year old launcher painted, maintained, and functional !!
I wonder if Alec has tried fasting as well ??
Whats That Noise?
Ah, a view port is now open - things getting serious ??
Don't Ask, I didn't!
I did ask why not use electric motors and a screw hoist? The official answer is "too slow", but the hydraulic is powered by an electric motor -
Elevator Alarm Bell
Greg Brown, who does Launcher Area electrical things, would like to get the launcher elevator alarm bell (warning, about to go up/down) going again. I don't think I ever heard one go off.
More Siren - Dec 2015
I mentioned "somewhere" that Greg and I had tried to get the siren working. The problem was voltage into the switch, (the siren works fine when the switch gets proper power supply voltage).
"Michael Keller" < MiKe_Os @ web . de > responded
i just read about your trouble with the siren in the BCT of SF-88.
First i want to thank you for scanning all the pages. I did this tabloid format once by myself with a normal scanner...
I looked over the schematics and tried to trace the wires of the siren. Maybe you have found it out by yourself, but i made a rough sketch about the connections.
Hope it helps, as a certified electrician i would give my left arm for digging in the BCT...
Greg Brown < gregorio_cafe @ comcast . net > responded that this is a GREAT help :-))
We were having serious trouble finding the correct schematics with the correct updates :-((
The intercontinental help is wonderful :-))
And More Siren - Jan 2016
With words and music (text and pictures) by Greg Brown < gregorio_cafe @ comcast . net >
- Saturday, Ed and I made an attempt to fix the problem. We had 30 minutes to do it before the Saturday open house tour started.
- It was estimated that 700 people came in a 3 hour period. (There was a parking crisis)
- "Here are some pictures of the quick bubble gum and bailing wire repair of the siren.
- "Next trip we will add an inline fuse holder, replace wire with a larger gauge wire, #18 or 16, and lift the old supply wire on the siren switch.
- "No use in back feeding good voltage (24 volts) to a voltage supply that has a problem, (5.04 volts). And run the wire in a better, more concealed route."
- Greg Brown, Nike Hercules Radar Crewman, LA-88, 1968-71, C-4-62
BC VAN Power Distribution Panel. Siren Power origination from Sig Sys fuse position 24 VDC Back-Side of BC VAN Power Distribution Panel. Siren wire to Sig Sys fuse BC VAN Power Distribution. High Voltage supplies and 24 & 27 Volt DC supplies Siren Button in BC Van Siren Button Siren Switch - Red wire is the new 24 VDC supply feed Inside Vert Plotting Board Siren Switch BC Console BC Van Siren - Rusted out and needs replacement Battery Commander Ed Thelen
Greg is teasing me !!
BC VAN Power Distribution Panel
Generator Building Conversion Mar 2016
Ranger Al Blank says "The conversion will be for a Welcome Center and a small museum. A place to meet!"
A little background:
- The Nike systems were usually powered from commercial power when available. But during alerts, power was generated locally in case of interruption of commercial power.
- This building originally contained several large petroleum powered engine/generator sets to power the launcher area, including the 60 Hz missile elevator motors.
- There are currently several 60Hz to 400Hz converters to power the Battery Control van, Radar Control van, and radar which were normally in the IFC area at the top of Wolf Ridge almost a mile away.
(These particular converters were secured by the ever vigilant Alec Gyorfi from AT&T San Ramon during some change over.)
Ranger Al Blank sent the following e-mail - to the more active volunteers Mar 18, 2016
The Generator Building conversion is under way. We have been asked to clear the place out by mid-May. Not that far off. I'm hoping to get a group of corporate volunteers to help with this project. Also, I am hoping that we can arrange a date for us to inspect the contents of the building and figure out what to do with it all. Perhaps some of the stuff will go to "B" Pit, others to Battery Alexander, some to the dumpster and some back to you all.
I will keep you posted and hopefully we can arrange something.
Greg Brown sent these pictures of the current electrical business of the Launcher Generator Building
I (Ed Thelen) took this panorama of the inside of the generator building May 7, 2016. The game plan is to enclose a single frequency converter (and the electric wall fixtures) behind a (new) west interior wall. The tools, equipment, spares, ... in rest of the material need to be moved - ?to the "B" pit?
Wednesday May 11th, we are just starting an inventory and toss junk party, with Ranger Al Blank supervising. Most of the material in the east part of the building was moved/examined. About 7 NPS rain suits, one piped air ?fire fighting? suit, 2 cu. ft. incandescent light bulbs, ... were found. One pick-up truck of "junk" was removed. The pervasive smell of mouse poo and pee was surprisingly unpleasant.
Loud Fan Bearing in BC Van May 2016
If February, Donald Echeverria who likes to docent in the BC Van, noted that suddenly a rather loud noise started in the BC van and he had to talk over it to inform visitors of the functions and stories of the van. Techies figured this sounded like a fan whose bearings failed -
It turned out that Open House days were too busy to localize and fix the problem. May 11 turned out to be an ideal time after getting nauseated by mouse poop and urine in the Generator Building (see above).
After removing the already disconnected PPI scopes, Greg Brown and Ed Thelen localized the loud noise to one of four fans. (Another fan motor was very hot, and not rotating.) It turns out that there are fan assemblies mounted on the back wall of the BC Van display console blowing air into the PPI Scopes. As these scopes are disconnected, and likely never will be reconnected we might as well disconnect the fans (including the very noisy one) to solve the audio problem. Greg (our ace electrician :-) disconnected the 120 volt power wires, tagged and insulated the copper.
He also disconnected the two fans for the other PPI scope, which contributed a low noise to the BC Van. Now Don will not have to shout to get his message out :-))
and of course there is grass to mow and trim - June 2016
"the administration" cooperated in getting some replacement batteries, so Alec and Jerry got gasoline and activated three mowers (two shown here)
Jerry Freight practicing with the John Deere. He then mowed for half an hour 'till lunch time. I (Ed Thelen) mowed tight corners with this for 15 minutes, 'till the cutter plastic "string" was used up Gordon Lunn likes to keep the little "IFC Area" neat and trim. He brings this edger from home. Goats had been brought in earlier this spring to eat their fill. Goats may be best on steep hillsides and the steep berm around the warhead building.
Elevator Down Alarm Aug 2016
Greg Brown has been replacing the A Pit Elevator Down Alarm Bell which rusted into failure.
This is the new "electronic" bell, (it has a speaker, not a bell). The real one rusted into oblivion :-(( The bell was used to warn people when the elevator was about to go down. Greg Brown is wiring power for the new bell.
B-Pit Elevator stuck in up position Oct - Nov 2016, mostly fixed Feb 16, 2017 :-))
There has been a long battle with the B Pit (Magazine) elevator which is currently stuck in the "up" position - the elevator will not come "down".
Although B Pit is not shown to visitors, it is very useful as a work room, equipment storage shed ( example, lawn mowers ) and long term storage of equipment too heavy for Susan to steal.
Alec, Greg, Jerry and Al (Parshall) have been coming to the site for at least 5 successive Saturdays (as of Nov 16) measuring, examining, testing, ... trying to find the problem.
Here is a "trip report" from Greg, dated Nov 16, 2016
Ron, I’m good for next Saturday.
I sent you a picture of the bad terminal connection for the power input 3L1
There were 2 solid conductor wires on top of the 2 factory wires with terminals.
The solid wires did not have terminals, and the top one had insulation on the screw connection.
This is why the relays pulled in when I put my meter lead on the connection.
The bad connection on the SA2 solenoid that Alec found may be the reason why Jerry would hit the housing with a hammer and things would work?
It seems that bad connections are a problem.
I think the 3L1 connection was the root cause, and it stopped the locking bars before completely engaging.
Now we are pumping against a closed solenoid, if we can open it and get pressure to the doors and elevator from pump 1,
I think we will be in business, If we are lucky…..
"Trip report" from Greg, dated Nov 20, 2016
The good news,
Greg rewired the 3 pressure switches and CR9, lo and behold, elevator moved.
Now we can raise and lower, with the pushbuttons, in the normal fashion. The elevator doors continue to work in normal fashion.
The bad news,
The elevator doesn’t lower completely, stopping about 1 foot before reaching bottom, the leveling solenoid S3 does not activate.
Two limit switches come into play, that’s where we are at now.
I can apply power ahead of the limit switch and the elevator will gently drop to floor level.
So the elevator is down and the doors are closed.
Just gotta fix the leveling problem.
Dec 3, 2016
The problem remains - much try this and scratching of heads.
Me, (Ed Thelen) being way behind the curve, contributed by going to the surface and cutting weeds growing up between cracks in the asphalt in the B Pit area -
Feb 17, 2017
From Greg Brown, Feb 17, 2017
Launcher Hydraulic Leak - Feb 2017
Mar 4, 2017 - Before the regular monthly Open House, Alec showed us this pair of meters and asked which seemed to indicate a leak. Oddly, we all guessed correctly ;-)) The meter face to the left is mostly flooded with hydraulic fluid. There had been a hydraulic leak and this was the culprit. About 4 gallons of fluid were used to refill the tank. Alec points to the replacement meter, cannibalized from another launcher hydraulic pump. Alec raise and lowered the missile, and the meter read about 3,000 psi - except when the missile was lowered and settled. Then wild excursions seemed to peg the meter in both directions. Alec figured these excursions broke the previous meter.
Missile Magazine, Sump Pump - March 2017
We in California FINALLY got average rainfall - 170% average, to break a near record drought.
The reservoirs are full to overflowing :-))
That was the good news :-))
The bad news is that too much water is not necessarily a good thing.
Rain in A pit
Tough sealing 40' folding doors
Sump Pump Removed
Sump Pump-Frozen Bearing
Popped the circuit breaker.
Sump Pump-New Installed
OK, Circuit breaker ON !!
Alec is the main pulse
keeping the launcher area going.
Leak in RC van
Unattended for three year
Results in corrosion
weakening the vans.
The Park Service paints buildings,
but won't paint the vans :-((
I bet a little paint on the
outside would do wonders !!
But "they" don't trust volunteers -
"You get what you pay for"
Volunteers paid nothing, are worth ?
Mouse House in Computer - April 13, 2018
Greg Brown invited me to a SF-88 "Grass Mowing Party" for Saturday. Alec has recovered from ??? and will be there. Greg also supplied this picture of a mouse house in the computer in the BC van. (He says it smells like old mouse urine and has mouse feces.)
Apparently ? there is a hole (under the computer?) in the van large enough to let mice in?
Unfortunately I have an ear infection and thought it best to stay home.
Later, Greg sent this picture
"Ed, it was actually fun. There is so much that needs to be done."
Erratic Launcher - August 2018 - images by Greg && Ed
We have all heard the expression "A woman's work is never done."
- She just finishes moping the last floor, then little Johnnie drags in a dead skunk.
The same with an ancient, worn, salt corroded, Nike system.
- Everything finally works :-) , then the only restored launcher intermittently won't erect.
Unfortunately, we don't have any videos of the launcher "burping" before failing to erect (maybe 50% of the time).
These are photos of looking around - without schematics of the launcher wiring to understand the relay ladders of events (such as checking for sequences of contacts being open or closed) necessary for a successful launcher erection.
The estimated ?half ton? of system schematics and descriptions have been moved to somewhere in the NPS warehouses for safekeeping.
Greg and Alex ask if "anyone out there" has:
- FM 9-1400-250-15/3
- TM 9-1440-250-10/1
- TM 9-1440-250-20/1
which were in the above lot which the NPS has.
Greg thinks probably
"Wedge Lock cam limits
are not engaging.
ref: MMS 151, 3-P8
(Launcher up cycle)"
Erratic Launcher - October 13, 2018 - text and images by Greg Brown
[Or, is it words and music by Greg Brown ;-)]
Just a note to bring you up to speed on the attempt to repair the launcher up problem last Friday. [Oct 12, 2018]
I was worried about the traffic so I left at 5:30 AM. No traffic, got there in 55 minutes.
Using the prints from the Launcher Repair Kit Manual, We focused on the Up relays K2BB and K2H We found that the main terminals E103 series of terminals at the rear of the LCI were difficult to get to. So we opened the 3 panels on the launcher arm to check the terminal strips inside. We buzzed out the limit switches and they were good.
We found the cable conductors for the limit switches had deteriorated to the point of appearing burned. The insulation was shot. The cable is much like power tool cord, What we call SJ cord, rubber insulation with hemp looking outer jacket and then the rubber jacket. We taped the exposed conductors for the limits, but that was not the problem. It seems that when the launcher up cycle works, the K2H relay would energize. In the failed attempts, no relay click.
I removed all the relay connections and re-soldered, still no good. We could see voltage on the coil, 25 volts, but not enough to make it engage. I touched my meter lead to one side of the coil and it worked. So we tested the relay using a variable power supply. It picked up at 18 VDC, and the contacts were all switching. So what the heck, we changed out the relay with a spare that we tested. It picked up at 12 VDC. Everything in and it worked 3 times in a row. (But the relay drawer was out)
Moved the relay drawer in and it failed.
By then it was time to go so we left it for another day.
There are a series of Bendix plugs on the rear of the relay drawer (P103/J103) that we need to check, reseat the connectors and spray with contact cleaner. And trace out the coil circuit. Connections and grounding checks are the next. At some point we will have to replace the limit switch cables. but access is a bitch, you have to snake the cable through the launcher arm. For me it was a good learning experience. I think we are very close to solving the problem, maybe one more day. It was good not to have any distractions while we were working. Which does not happen on a Saturday.
Erratic Launcher - October 21, 2018
- words and music by Greg Brown
Ed & Ron, A fun sunday was had at SF-88. we opened up the LCI. the first test was to monitor coil voltage on K2BB and K2H. (H is Hydraulic) K2BB relay coil voltage is 25 volts very time K2H is 25 volts when it works and 5 volts in the failed condition.
So we removed the coil wires of K2H and applied external 24 volts from a power supply. It worked every time. Now to trace the coil circuit. we traced it through the test operate switch and out to the launcher up-down limit switched. We also tightened all the terminal connections on the terminal strips. Traced the limit switch wiring to the end of the cable where it goes into the power distribution box - all good.
So It has to be the limit switch? Took the covers off the limit switches and sprayed the switch contacts with contact cleaner. Put everything back together and it worked. May need to do adjustment on the limit switch mechanism.
I suggested to Alec we remove on of the sockets for P84A on the junker launcher, and we can make a test fixture, using meter or lights to check the states of the limit switches in the future. It would plug into the cable that I am holding in the picture P84.
Time will tell. Sunday is a great day to get things done. There is no one around. Greg
Sick Acquisition Radar -01-11-2020
words and photo by Greg Brown
It was a great day, not a whole lot of people, but I was cleaning and organizing in B pit. At first I was met with some resistance but then Alec and Jerry joined in and a lot was accomplished by noon, and I continued on until 3:30. I figure it will take 4 more days to get everything in order.
No place to throw the trash as Al needs to order a dumpster. Alec says if he gets a day off during the week he will call me and we can continue with the clean up. 20+ years of crap piles stored on rolling carts and scope carts. Crap needs to be thrown out and parts need to be organized.
The ranger gal said the antenna was not turning, and indeed, the motor was smoking, Alec touched it and got burned. I got a movie of smoke coming out of the vent. So the ACC antenna no longer revolves. Alec says he has a spare motor, but it could be a gearbox problem. More fix it projects for Alec.
They say "a woman's work is never done", same with maintenance - Jan 24, 2020
words and photo by Greg Brown
No power to the vans for the de-humidifiers, I bought a GFI outlet to replace the bad one. Today Alec and I went to fix it. That blown outlet is a circuit made to supply 60 HZ power to the vans from the Generator Bldg. Those outlets are really not meant for outdoor use. No outlet is, unless their is some form of drip protection. There is a hole blown in the outlet, probably from rain and moisture. We were able to reset the breaker and get power back, but then the de-humidifier in the RC van went up in smoke, so we unplugged it. We removed the defective unit.
Things are breaking down faster than we can fix them, but we do our best.
replacing 2 rusted hydraulic pipe lines in B pit. - March 4, 2020
Words and pictures from Greg Brown
"I was at SF-88 today to help Alec replace 2 rusted hydraulic pipe lines in B pit. The yellow pipes in the last picture are the new ones. Rigid pipe, 8 feet long, threaded on both ends. Al Kellog was there, Power washing the vans."
Inspection After One Year of Covid - March 22, 2021
from Greg Brown
Ed, Gordon & Don,
SF-88 Re-opening inspection
Ed [Thelen], Gordon [Lunn], we share talking in the RC van.
Don [Echeverria], talks in the BC van.
I hope all of you are doing well after a year of Covid 19 hibernation.
Al Blank [SF-88 site ranger, good guy] asked Alec [Gyorfi], Al Kellogg and myself to come out last Friday and look at things at the site.
Mainly to see what work needs to be done. It was a quick look and see.
The launchers and elevators were working fine.
Both pits looked good.
I was concerned about the vans as we had a rodent problem in the BC van computer prior to Covid.
The BC van did not look bad, there was some water leakage and stains on the floor.
Everything needed to be wiped down with a moist rag to clean the dust.
I removed the nest, but the poop stains on the floor needs to be cleaned up.
The smell of mouse will be in the van for a long time.
One of the first things that need to be done is to seal the openings where the mice are getting in.
Then put out rodent bait and traps.
Both Vans had water leakage from the roof. Al Kellogg said he would fix with Bondo and mobile home roof epoxy paint
We will all be working on that in the future.
Mouse Cleanup after inspection - March 25, 2021 from Greg Brown
Ed, Gordon & Don,
SF-88 Van Clean up
Ed [Thelen], Gordon [Lunn], we share talking in the RC van.
Don [Echeverria], talks in the BC van.
Just to let you all know, Alec and I came out today and cleaned up the mouse nests and droppings in the vans.
We discovered that the mice were tearing out the stuffing from the chairs for their nests.
We will need to put in wood to cover the bottoms of the chairs.
Floors were swept and mopped, traps were set, and bait put out.
Everything is clean….for now.
Al Blank has received this email
Hope all is well,
Alec and Greg lubricating elevator doors - June 2021 from Greg Brown
Here are some pics of me and Alec lubricating the elevator doors and lift.
It has taken 2 days, with one more working day to go to finish. Almost done, then on to B Pit.
I have been trying to clean the cables, which is taking the most time.
There is a lot of hardened grease gunk in the strands.
The rest is easy, just hit the pulleys with a grease gun
In the first picture, I am painting the rails with grease.
The hardest part is trying to slip underneath the elevator sump.
The opening is tiny, and you are on your knees.
I did not have my phone when I was under there to take a pic.
I will next time.
Power to the 2 IFC Vans - July 14, 2021 - text, pictures (and music?) by Greg Brown
Background, by Ed Thelen
When SF-88 opened to the general public on the first Saturday of July, it was noticed that no 400 Hz power was getting from the 60 Hz to 400 Hz converters, in the old generator building, to the BC and RC vans in the IFC display area. Not even the little ceiling lights would power up.
The accompanying pictures by Greg show the physical realities of getting power to equipment in the "Good Olde Dayze".
Alec, Al Kellogg and I were at the site today.
Al Kellogg mowed the grass while Alec and I chased the electrical problem.
It appears that the problem is in, or very near to the motor generator and not the vans.
We disconnected the cables at the power distribution box and it did not go away
The green building wall is the outside of the old generator building
Nike Power Plug
To be continued…..
We grabbed the Grainger stuff from the office, and installed the de-humidifier in the BC van.
Alec will return to the VA hospital next Wednesday for another heart procedure.
Unknown if another stint is needed.
LOPAR antenna doesn't rotate & search for manuals Sept 2021, mostly Greg Brown
Around ?August? 2021, the LOPAR antenna would not rotate !!
Alec reported that the motor was hot enough to burn your hand.
As the LOPAR antenna rotating is the only sign of life in the IFC display area, this is a significant docent problem.
The base of the LOPAR is a set of 3 stacked cylinders topped by the large (20 foot) antenna, (the motor being in the top cylinder) trying to fix the problem is a major physical problem.
And we have no diagrams of this physical assembly.
With so much weight hanging over our heads, we better know what we are doing !!
from Greg Brown, Sept. 6, 2021
The environment of the NPS Archives Center at the Presidio, in San Francisco
Ed at Archives Center door
View from front of Archives Center
Wolf Ridge Nike, about 1970
Wolf Ridge MTR, from below
I just wanted to relay to you all some good information.
Ed and I went to the NPS Archives center last Thursday (Sept 2, 2021) to look at their collection of Nike Manuals.
We made an appointment with Amanda Williford,
Curator and Reference Archivist.
Presidio of San Francisco Bldg 667 McDowell Ave. San Francisco
They have some 18 boxes of manuals, neatly organized. During the afternoon, we were able to go through their picture files of Site SF-88 and SF-87.
Many good Black and White pictures. One picture showed the SF-88 Launcher magazine being constructed in 1954.
We requested some manuals on the LOPAR, because we are looking for a good mechanical drawing of the antenna motor and gearbox.
We found one, along with 4 other manuals that we found beneficial.
Amanda made us copies of the LOPAR mechanism pages and offered to scan the complete manuals for us.
We found that taking a box at a time, and going through each manual was the best way to discover the good information, as the titles can be deceiving.
We asked that she scan 5 manuals. One was the complete tracking radar checks, daily, weekly, and monthly.
Amanda was very helpful and gave us an area to work in.
I had her scan 2 LOPAR manuals before our trip, but they turned out to contain the electronics, not the mechanical.
( Yes, the manual names can be deceiving. )
Her scans are better than Ed or I could do.
Ed will put the scanned manuals on his website as soon as we receive them.
The LOPAR electronic manual is on his website, along with the Nike Commanders Manual, that I found on Google books.
The NPS Nike Manual collection can be viewed on this site.
or here, local.
Alec and I have been doing a Thursday - maintenance day visit to SF-88.
However several weeks ago, Alec tested positive for civid, because he recently had the infection.
He is not allowed to return to SF-88 until he gets 2 consecutive negative tests.
Alec has the keys so the maintenance work has temporally come to a pause.
Our next project is to repair the ACQ antenna.