The first static firing of a 'C' series missile was successfully conducted at Sycamore Stand 1, on 12 November 1958. The primary purpose was a missile-facility shakedown to prepare for longer duration tests. The major differences between the 2C and the flight missiles was the addition of a lead ballasted nose cone and the absence of RF and Telemetry systems on Missile 2C. Prior to the first run an accumulator was installed in the pneumatic sensing line to the sustainer LO2 liquid regulator. The purpose of this modification was to damp characteristic oscillations in the pneumatic reference regulator pressure. Spurious engine cutoffs were obtained during checkouts of the sustainer overspeed filter unit. To overcome this a unit was reworked and supplied as a prototype unit. Scheduled run durations were Booster and Sustainer 5 seconds and Vernier 8 seconds. The PU valve was held in the null position during the test. There was no thrust chamber gimbaling. Fuel was tanked to the 150 cu ft. ullage level and LO2 was tanked to a calculated 2.25 mass ratio based on load cell readings. (Author)


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