from Michael Keller MWO 9-1400-250-30/22
DEPARTMENT OF THE ARMY MODIFICATION WORK ORDER
CONTROL-INDICATOR C-2620A/TSW,
CONTROL-INDICATOR C-26991TSW:
ADDITION AND MODIFICATION OF
WIRING HARNESS ASSEMBLIES
(NIKE-HERCULES AIR DEFENSE GUIDED
MISSILE SYSTEM)HEADQUARTERS, DEPARTMENT OF THE ARMY
AUGUST 1963
Hi Ed, this is a Modification Work Order (MWO) for the NIKE Hercules Section Control Indicator and the Launcher Control Indicator. It consists of the following changes: SCI (1) an automatic 2-1/4 second fire-launch sequence and holding circuit for the fire relay that will eliminate timing or sequence errors in the manual mode of fire. (2) a missile heat monitor indicator for each launcher that will provide a visual indication of the missile heat status. (3) an increase in time duration of the booster squib power application, that should insure the ignition of all booster squibs. LCI (1) modification of the reject circuit (2) improvement of the warhead monitoring circuit. (3) monitoring of missile heat status at test stations (4) rerouting of the missile away signal. (5) rerouting of the cage-uncage circuit (6) removal of glow coil power from test stations. with kind regards from Germany, Michael Keller.