Time of firing: 0903 MST
Agency: University of Michigan for SCEL
Altitude: 77 miles
UPPER AIR INSTRUMENTS
Temperature: Twelve flash and sound grenades (SCEL).
Four Pirani gages to probe
shock wabe angle for temperature
(Mich. U.)
Composition: Two evacuated air-sampling bottles
with associated timer and pyro-
technic opening and sealing
devices
Cosmic radiation: Cosmic ray tracking plates for
meson and proton detection (AEC)
Other: Talcum generator to permit tracking of high
altitude winds (SCEL)
DATA RECOVERY INSTRUMENTS
Telemeter: NRL AN/DKT-2 30-channel PPM-AM system
Airborne recorder: Cook Research Laboratories 13-channel
FM magnetic tape
recorder in parallel with
telemter
Physical recovery: Warhead and instrument compartment
separated by TNT detonation
BALLISTIC INSTRUMENTS
Firing Range
Theodolites: Three Mitchell
and seven Askania stations
Cameras: Three ballistic
and three Bowen-Knapp stations
Telescopes: Three stations
Radar: Two SCR-584 modified
S-band stations
Airborne
Beacon: APN-55 S-band transponder
Radio Cutoff: AN/ARW-37
FM control receiver for command fuel cutoff and
blowoff
Aspect: Three Giannini heliograph
cameras. APL K-25 camera for aerial recon-
naissance and missile aspect.
ROCKET PERFORMANCE
Program angle: seven degrees
Firing time: 0903 MST
Time to burnout: 65.34 sec.
Velocity at burnout: 4280 ft/sec.
Altitude at burnout: 21.6 miles
Time to zenith: 205.85 sec.
Altitude at zenith: 77 miles
Time to tail blowoff: 318.1 sec
Altitude at tail blowoff: 21.7 miles
Impact coordinates: Mid-body - 33.33 mi. north,
3.11 mi. east of launcher
BALLISTIC DATA
Theodolites: Askania trajectory data from 3 to 355
sec. Mitchell trajectory data
from 1 to 74.8 sec.
Telescopes: Altitude data from 4.4 to 80 sec
Radar: Trajectory data from 0 to 586 sec
Aspect: Giannini data. APL K-25 camera aspect data.
DATA RECOVERY
Telemeter: Excellent records on all channels beyond
the time required for all
experiments
Airborne recorder: Cook magnetic tape recorder -
excellent records until 70 seconds
(Mich. U.)
Physical recovery: Two air-sampling bottles in apparently
good condition. AEC
cosmic ray plates. Cook
magnetic tape recorder casette. Giannini heiographs -
operated in flight and recovered.
APL aspect and reconnaissance camera -
excellent record over peak.
EXPERIMENTAL DATA
Air-sampling bottle sealers failed to operate - no
samples. All four Pirani gages
gave excellent data in the
altitude region of 85,000 to 130,000 fe. At this point,
one gage or its circuit
failed. Three-gage data were obtained up to 145,000 ft,
then a second gage went
out. Signals were obtained from the two remaining
gages up to 230,000 ft at
which point both burned out due to everheating at the
low pressure.
Although no yaw data were available from 183,000 to 230,000 ft, reduction
was made of the three- and
four-probe data. The temperatures obtained agree
well with measurements by
other methods. The results show that the shock
wave angle method is useful
for making instantaneous, independent measuremnets
of temperature to 230,000
ft.
COMMENTS
Rocket modification: Four Pirani gages mounted on
extension rods were placed at
90-degree intervals 8 in.
from the longitudinal axis of a 40-degree right circular
cone. The rods were driven
through an excursion of 8 in. with a period of about
3 sec in a direction parallel
to the cone axis so as to intercept the shock wave.
Holes for the SCeL grenades were located on radii at the base of the war-
head.
Rocket performance: Normall in all respects
Experimental: The Cook magnetic recorder and two
Piranis failed at about the time
one grenade should have
fired. This grenade was later found to be jammed in
the warhead. It is thought
that the ejection charge may have damaged some
circuits.
REPORTS AND PAPERS
"Atmospheric Phenomena at High Altitudes," L.M. Jones,
and H.W. Neill, Engi-
neering Research Institute,
University of Michigan, Final Progress Report,
Contract W-36-039 sc-32307