Time of firing: 0322 MST
Agency: Air Research and Development Command
Altitude: 38.7 miles
UPPER AIR INSTRUMENTS
Solar soft x-ray studies: Densitometer packets with
x-ray type photographic
film behind filters of varying
thicknesses of evaporated aluminum (of the order of
a few microns) which are
opaque to visible light (AFCRC)
Ambient pressure and temperature measurements: Two
type VG-1A ionization
pressure gages on mid-body
of rocket. One Phillips pressure gage on mid-
body of rocket. Special
cannister for shock wave angle determination. (Mich. U.)
Skin temperature experiment: Nickel temperature-sensitive
elements, com
mutated in one arm of ac
resistance bridge, to sense heat change in flush-
mounted thin steel diaphragms
distributed along rocket skin (Boston U.)
Vertical incidence ionosphere propagation experiment:
Synchronized ground and
rocketborne equipment to
measure delay time of low-frequency pulse traveling
through the E layer by comparison
with travel time of undelayed high-frequency
signal (AFCRC)
Luxembourg experiment and artificial airglow: Intermittently
pulsed "disturbing"
transmitter, with probe
to excite artificial airglow, vertical-incidence iono-
sphere transmitter furnishing
wanted signal; phototube detectors with filters
and optical spectrograph
(AFCRC)
Sky brightness measurement experiment: Three photoelectric
tubes located in nose
section, pointed directly
at Luxembourg antenna (AFCRC)
DATA RECOVERY INSTRUMENTS
Telemeter: NRL 23-channel telemetering system; 1025-Mc
transmitter located in
control compartment
Physical recovery: Parachute
BALLISTIC INSTRUMENTS
Firing Range
Theodolites: Two Mitchell
and eight Askania stations
Cameras: Two ballistic and
three Bowen-Knapp stations
Telescopes: Four stations
Radar: SCR-584, S-band
Doppler: Four stations
Airborne
Beacon: Miniature beacon
installed in tip of nose cone to telemeter time of
parachute ejection and aid in tracking of nose section (AFCRC)
Doppler: Dovap transceiver
Radio cutoff: One ARW-37
radio receiver at 54.4 Mc located in control com-
partment of rocket for fuel cutoff or warhead blowoff
Other: Routine rocket performance
instrumentation
ROCKET INFORMATION
Unfueled rocket weight: 10,161 lb
Gross weight at takeoff: 29,529 lb
ROCKET PERFORMANCE
Program angle: Seven degrees
Time to burnout: 57.5 sec
Velocity at burnout: 3003 ft/sec
Altitude at burnout: 13.1 miles
Time to zenith: 150.5 sec
Altitude at zenith: 38.7 miles
Time to tail blowoff: 96 sec
Altitude at tail blowoff: 29.8 mi. (ascending)
Flight duration: Approximately 282 sec
Impact coordinates: Main body - 17 mi. north; warhead
- 16 mi. north
BALLISTIC DATA
Theodolites: Askania - good operations through burnout;
Mitchell - good records
through burnout
Cameras: Ballistic - operations very good; Bowen-Knapp
- operations satisfactory
Telescopes: Telescope I - tracker followed rocket
approximately 180 sec; noted
intermittent glow after
burnout. Telescope II, N station - rocket lost in clouds
5 or 10 sec after takeoff.
Telescope III followed rocket approximately 170 sec.
Radar: SCEL beacon radar tracked through peak
Doppler: Good signals throughout flight
DATA RECOVERY
Telemeter: Good telemetering record obtained for
74 sec, loss of record from 74 to
128 sec. From 128 to 283
sec, record was intermittent.
Physical recovery: Warhead and parachutes. One spectrograph
film casette from
rocket tail fin No. 1. Main
body, intact up to impact, landed point down at high
velocity, resulting in complete
disintegration of rocket. Components scattered.
EXPERIMENTAL DATA
Ambient pressure and temperature measurements: No
pressure data obtained due
to low altitude. No data
on shock wave angle determination due to low altitude.
Skin temperature measurement: Curves of temperature
vs time for heating effects
due to frictional dissipation
between various points on the missile and adjacent
air molecules
Spectrograph study: No data since light source (artificially
induced aurora) did not
function
Vertical incidence ionosphere propagation experiment:
No data obtained due to
insufficient altitude, although
there was some measurable retardation at the
maximum altitude
Soft x-ray measurements: Two packets were recovered;
in one the foil was missing,
and the other showed pinhole
fogging only
Miniature beacon experiment: Functioned satisfactorily.
Impact of the warhead was
determined from signal received
by ground stations from the beacon.
Sky brightness measurement: No data obtained
Luxembourg experiment and artificial airglow: No
data due to failure of transmitter
COMMENTS
Rocket performance: Takeoff apparently normal; cutoff
occurred unusually early at
57.7 sec. Warhead separated
by cutoff receiver at 96 sec. Canister ejected at
92 sec. Rocket was very
stable up to time of burnout; a roll of approximately
20 rpm started after burnout.