Agency: General Electric Company
    Time: 1211 MST
    Altitude: 3.0 miles

UPPER AIR INSTRUMENTS

    Ionosphere: Test of ionosphere propagation transmitters (NRL).

DATA RECOVERY INSTRUMENTS

    Telemeter: PXTA-501, NRL 21 channel PPM/AM system.
    Physical recovery: Ejected block with drag plates (NRL).

BALLISTIC INSTRUMENTS

    Firing Range
        Theodolites: Two Mitchell and two Askania stations
        Cameras: Three Bowen-Knapp stations
        Telescopes: One station
        Radar: One modified SCR-584 S-band radar
        Doppler: Four stations.
        Impact location: none.

    Airborne
        Beacon: AN/APN-55 (XE-2) S-Band transponder
        Doppler: DOVAP transceiver
        Radio Cutoff: AN/ARW-17. FM control receiver for command fuel cutoff.
        Other: Instruments to measure rocket propulsion and control performance.

ROCKET PERFORMANCE

    Firing angle: 000 degrees
    Program angle: 5.65 degrees
    Time to burnout: Exploded at 28.5 sec.
    Altitude at burnout:
    Velocity at burnout: 1310 ft. per sec.
    Time to zenith: 28.3 sec.
    Altitude to zenith: 3.0 miles
    Time to blowoff:
    Altitude to blowoff:
    Flight duration:
    Impact Coordinates: 0.5 miles north, 0.0 miles East West
    Payload weight: 2105 lbs.
    Unfueled rocket weight: 9167 lbs.
    Unfueled rocket C.G.: 242.8 inches
    Gross weight at takeoff: 28,840 lbs.

BALLISTIC DATA

    Theodolites: Askania trajectory data 0 to 20 sec.
    Cameras:
    Telescopes: No data, timing circuit failed
    Radar: Trajectory data 0 to 28 sec.
    Doppler: Good signals 0 to 30 sec.

DATA RECOVERY

    Telemeter: Good signals 0 to 28 sec.
    Physical recovery: Tail section scattered over wide area, remainder fell in one piece,
        ejection device did not operate due to short flight time.

EXPERIMENTAL DATA

    Ionosphere: No signals received from transmitters.

COMMENTS

    Rocket performance: Overheated oxygen pump bearing caused explosion
    Optical tracking: Heavy cloud cover obscured rocket past 20 sec.

REPORTS AND PAPERS

    Telemetering data, DF-71395 G. E. Rocket No. 4
    Project Hermes Weekly Report, General Electric Company, 22 July 1946
    Preliminary Report of V-2 Firing, WSPG, 19 July 1946
    Report No. 695, by H. P. Hitchcock, Ballistics Research Laboratories, Aberdeen Proving
        Ground, April 1949
    Report No. 639 by H. P. Hitchcock and V. M. Reklis, Ballistics Research Laboratories
        Aberdeen Proving Ground, October 1947
    "Upper Atmosphere Research Report No. 1," by M.A. Garstens, H. E. Newell, and J. W. Siry,
        Editors, Naval Research Laboratory Report No. R-2955, October 1946.
    "Final Report, Project Hermes V-2 Missile Program," by L. D. White, Report No. R52A0510,
        General Electric Co., September 1952.