Time of firing: 0507 MST
    Agency: Naval Research Laboratory
    Altitude: 103.0 miles

UPPER AIR INSTRUMENTS

    Pressure-temperature: Philips and Pirani gages installed on the warhead and on the
        tail section; a ram pressure probe extended beyond the nose of the rocket
    Cosmic radiation: Wilson cloud chamber to study the reaction of primary cosmic
        rays in passing through different materials; a seven Geiger counter tube bundle
        to measure gamma ray activity; one package of Ilford plates
    Solar radiation: A solar spectrograph, the record to be used in the determination of
        the vertical distribution of ozone in the earth's atmosphere; a soft x-ray
        densitometer experiment
    Ionosphere: Two generating voltmeters; positive and negative ion collectors for
        determination of ion density
    Other: Two K-25 cameras for earth photography and a classified experiment

DATA RECOVERY INSTRUMENTS

    Telemeter: NRL 30-channel system
    Physical recovery: Separation of nose section with TNT

BALLISTIC INSTRUMENTS

    Firing Range
        Theodolites: Seven Askania and two Mitchell stations
        Cameras: Bowen-Knapp
        Telescopes: Four tracking
        Radar: Modified SCR-584

    Airborne
        Beacon: In use
        Radio Cutoff: AN/ARW-37
        Aspect: Schwein gyroscopes to determine rocket aspect
        Other: Routine rocket propulsion and performance instruments; vibration
            instruments

ROCKET INFORMATION

    Unfueled rocket weight: 8993 lb
    Gross weight at takeoff:: 28,685 lb

ROCKET PERFORMANCE

    Firing angle: 0.0 degrees
    Program angle: Seven degrees to north
    Time to burnout: 64.6 sec
    Velocity at burnout: 5400 ft/sec
    Altitude at burnout: 23 miles
    Time to zenith: 228 sec
    Altitude at zenith: 103.0 miles
    Time to tail blowoff: 336.4 sec
    Altitude at tail blowoff: 70 miles (approximately)
    Flight duration: 550 sec (approximately)
    Impact coordinates: Main body - 51 mi. north, 7 mi. west; instrumentation - 53 mi.
        north, 6 mi. west

BALLISTIC DATA

    Theodolites: Good records almost to impact
    Telescopes: Good records almost to impact
    Radar: Data to 176.5 sec

DATA RECOVERY

    Telemeter: Ended abruptly at 27.85 sec
    Physical recovery: Separation was effective. The main body was broken up very
        little on impact. The warhead dug itself into the ground to a depth of 6 to 8 ft.
        All required recovery was successful.

EXPERIMENTAL DATA

    The spectrograph failed at about the same time as the telemeter. The cloud chamber
        gave no data. No useful data were obtained on most of the experiments because
        of the telemeter failure.

COMMENTS

    Rocket performance: Takeoff was normal. At about 25 sec a puff of smoke was
        observed at the tail. However, the rocket continued in normal flight and appeared
        to be stable. Roll was introduced in a counterclockwise direction by means of
        trim tabs. One pullaway plug failed at takeoff; the plug stayed on the launching
        platform. This left a hole in the tail section. The recovered rocket showed
        indications of a flash fire which was probably caused by the jet flame blowing
        into this hole and igniting fuel vapors. The fire was of short duration and
        apparently did not affect the rocket performance. The spectrograph wiring was
        charred in several places and there was indication of a short circuit. The con-
        dition of the wiring indicated an external fire rather than a short from the
        wiring as a cause of the fire.