Agency: General Electric Company
Time: 1230 MST
Altitude: 83.5 miles
UPPER AIR INSTRUMENTS
Cosmic radiation: Four packages of cosmic ray emulsions
Ionosphere: Indirect ion density measurements with
rf propagation transmitters (NRL).
Biological: Selected seeds. (Harvard University).
DATA RECOVERY INSTRUMENTS
Telemeter: NRL 22 channel PPM/AM system.
Physical recovery: Ejection mechanism with drag
plates (NRL).
BALLISTIC INSTRUMENTS
Firing Range
Theodolites: Two Mitchell
and two Askania stations
Cameras: Two Bowen-Knapp
stations
Touching Telescopes: One
station
Radars: Modified SCR-584
S-band radar
Doppler: Four stations.
Airborne
Beacon: APN-55 (XE-2) S-Band
transponder
Doppler: DOVAP transceiver
Radio Cutoff: AN/ARW-17.
FM control receiver for command fuel cutoff.
Other: X-band crossjet attenuation
transmitter and receiver (NRL)
Routine rocket performance instrumentation
ROCKET PERFORMANCE
Firing angle: 0.0 degrees
Program angle: 12.4 degrees
Time to burnout: 60.6 sec.
Altitude at burnout: 19.5 miles
Velocity at burnout: 4680 ft. per sec.
Time to zenith: No data
Altitude to zenith: 83.5 miles
Time to blowoff:
Altitude to blowoff:
Flight duration: 402 sec.
Impact Coordinates: 61.0 miles north, 1.0 miles
east
Payload weight: 2050 lbs.
Unfueled rocket weight: 8977 lbs.
Unfueled rocket C.G.: 240.9 inches
Gross weight at takeoff: 27,850 lbs.
BALLISTIC DATA
Theodolites: Good results form Mitchell and Askanias
Cameras: Good results from Bowen-Knapp
Telescope: Records incomplete or irreducible
Radar: Trajectory coordinates, 0 to 402 sec.
Doppler: Very poor, weak signal
Impact location: Air and ground search.
DATA RECOVERY
Telemeter: Good signal throughout trajectory
Physical recovery: Fragments of ejection block up
to 0.5 mi. form rocket impact. Emulsions,
seeds badly damaged, unusable.
EXPERIMENTAL DATA
Cosmic radiation: No data, emulsions destroyed at
impact
Ionosphere: No significant data, last signal received
from rocket 70 sec. after takeoff.
COMMENTS
Rocket performance: Good propulsion, terminated by
rocket timer, actual trajectory angle
greater than preset program
angle.
REPORTS AND PAPERS
WSPG Preliminary Firing Report, A-4 Rocket No. 7,
Fired 9 July 1946
Telemetering data, DF-71393 G. E. Rocket No. 3,
9 july 1946.
"V-2 Report No. 5," Minutes of meeting of the V-2
Upper Atmosphere Research Panel on
9 July 1946.
"Final Report, Project Hermes V-2 Missile Program,"
by L. D. White, Report No. R52A0510,
General Electric Co., September
1952.