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V-2 ROCKET LAUNCH,NOV 21,1946 WHITE SANDS MISSILE RANGE

V-2 ROCKET LAUNCH,NOV 21,1946 WHITE SANDS MISSILE RANGE

$ 5.01

Availability: 100 in stock
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  • Condition: New
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    Description

    V-2 ROCKET LAUNCH,NOV 21,1946 WHITE SANDS MISSILE RANGE
    UPPER AIR ROCKET SUMMARY V-2 NO. 15 21 November 1946 IDENTIFICATION Agency: Air Research and Development Command Time: 1000 MST Altitude: 63.0 miles UPPER AIR INSTRUMENTS Pressure-temperature: Ram pressure on truncated cone with ion type gage, four ion type pressure gages on side of cone Ionosphere: Vertical incidence ionosphere measurement comparing two signals, one near critical frequency and other far removed. Ion density with bipolar probe. Sky-brightness: Sky light intensity measured by photocells Voltage breakdown: Critical voltage breakdown point between electrodes. DATA RECOVERY INSTRUMENTS Telemeter: NRL 23 channel PPM/AM system. BALLISTIC INSTRUMENTS Firing Range Theodolites: Two Mitchell and seven Askania stations Cameras: Two Ballistic and three Bowen-Knapp stations Telescopes: Two stations Radar: Two modified SCR-584, S-Band stations Doppler: Four stations. 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: Routine rocket performance instruments. (G. E. Co.). ROCKET PERFORMANCE Firing angle: 0.0 degrees Program angle: 3.5 degrees Time to burnout: 62.5 sec. Altitude at burnout: 16.5 miles Velocity at burnout: 3876 ft. per sec. Time to zenith: 180 sec. Altitude at zenith: 63 miles Time to blowoff: Altitude at blowoff: Flight duration: 340 sec. Impact Coordinates: 12.6 miles north, 1.25 miles east Payload weight: Unfueled rocket weight: 8885 lbs. Unfueled rocket C.G.: 237.4 inches Gross weight at takeoff: 28,240 lbs. BALLISTIC DATA Theodolites: Mitchell - trajectory data 0 to 72 sec., Askania - complete tracking from one station, to 80 degrees elevation from other Cameras: Bowen-Knapp - complete record, Ballistic - record to burnout Telescopes: Compete record for 35 sec. Radar: Both tracked to peak, one near impact Doppler: Good signals 0 to 306 sec. DATA RECOVERY Telemeter: Good telemeter record Physical recovery: Rocket destroyed at impact. EXPERIMENTAL DATA Pressure-temperature: Altitude too low for desired ionosphere data from propagation experiment, good systems test since equipment performed well Sky-brightness: Initial measurements of scattered sky light to 35 km. Intensity approximately proportional to atmospheric densities at various altitudes. Ratio of intensity through blue and green wratten filters 3.5. Blue intensity at 10 km. 0.5 watts/cm squared. Ion Density: Good data record. Proper interpretation indefinite. Good agreement with expected values from preliminary analysis. Voltage breakdown: Good data to 90 km, data invalid beyond.
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