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Project 5.8 - In-Flight Participation of the A3D-1 Aircraft - LCDR P.S. Harward
OBJECTIVE
The objective of this test wes to investigate the A3D-1 aircraft
capability for the delivery of high yield nuclear weapons by the measurement
and correlation of the in-flight effects of a nuclear detonation.
INSTRUMENTATION
Instrumentation of the A3D-1 aircraft consisted of 96 oscillograph
recording channels, one photo recorder, four GSAP (Gun Sight Aiming Point)
cameras, and three dosimeters,
The data recorded included temperature rise,
thermal input, rate of thermal input, overpressure, gust loading, aircraft
response, engine response, snd gemma radiation.
AIRCRAFT POSITICN IN SPACE
The A3D-1 aircraft was flying at an atsolute altitude of 36,310 feet
with no offset.
zero time.
Aircraft was on a keading of 117°T in a tail-on position at
Horizontal ranges at zero time and shock arrival time were
30,000 feet and 96,700 feet respectively.
seconds.
Time of shock arrival was 80.9
The A3D position was 200 feet beyond the planned zero time position.
EESULTS.
Thermal:
Temperature rise on the critical aircreft structure was 61-69°F
(20% design limit).
One 2' x 2' panel painted grey and one 2' x 2' panel
painted blue received temperature rises of 132-191°F and 344-348°F correspond-
ing to 40 and 84% design limit respectively.
Gust:
Total gust load at time of shock arrival was 0.45 g's at center
of gravity.
Overpressures
Peak cverpressure measured was 0.31 psi at time of shock
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arrival (80.9 seconds).
COP;
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