weerey
r
os
Project 5.8~ In-Flight Participation of an A3D-1 Aircraft LCDR P. S. Harward
OBJECTIVE
Project 5.8 objective is to measure the thermal response of the
A3D-1 aircraft to high yield nuclear detonations.
INSTRUMENTATION
Instrumentation of the A3D-1 for
CHEROKEE)
consisted of thermocouples located at critical points on the aircraft
skin,
Additional thermocouples were used to measure the temperature
of various specimens mounted on a special rack on the underside of
the fuselage,
4
Calorimeters and radiometers were utilized to measure
the direct and indirect thermal effects,
Five calorimeters and one
radiometer, mounted in the tail turret, were positioned at the correct
angle of declination to afford direct field of view of the fireball.
Similar thermal instruments were mounted vertically for measuring
indirect thermal effects.
GSAP cameras were mounted with each group
of thermal instruments to provide information on the field of view of
the thermal instruments and the terrain and cloud cover below the aireraft,
Additional instrumentation included pickups to determine the
aerodynamic effects on the aircraft's stability and calibrated air
pressure pickups to measure overpressure.
AIRCRAFT POSITION IN SPACE
For EEE6:20) the A3D-1 aircraft was on an
abort heading of 215° absolute altitude, 34,100 feet; horizontal dis-
.cOPIED/DOE
LANL RG /
~ 65 =,
{
LO