'
. _-(iytana)
Project 5.7 - Thermal Flux and Albedo Measurements from Aircraft Capt. R. L. Dresser
ORJECTIVE
The objective of Project 5.7 participation on this hot was to obtain
thermal flux and albedo information of a nuclear detonation with airborne
calorimeters, radiometers, and sixteen millimeter motion picture cameras,
INSTRUMENTATION
Instrumentation within the purview of Project 5,7 which was installed
in the B-47 included nineteen NRDL calorimeters and two NRDL radiometers.
for measuring the direct and surface reflected thermal radiation,
Six
calorimeters were utilized to measure thermal radiation which was back~scattered toward the cockpit.
Seven GSAP N-9 cameras were utilized to
obtain photographic coverage of the fireball, the earth's surface, and of
clouds beneath the aircraft, and also of any reflecting surface such as
a cloud which could cortribute to the back-scattered radiation,
Project 5.7 instrumentation on the B-52 included the twenty-one
basic instruments for thermal radiation measurements, but only an additional
two instruments were utilized for back-scatter measurements,
Eight GSAP
Cameras were installed for photographic coverage,
Project 5.7 instrumentation on the B-57 consisted of the basic twenty-
one instruments and six cameras,
Project 5.7 instrumentation on the B-66 consisted of the basic twentyone instruments and twelve cameras,
Neither tactical bomber (B~66, B-57) was instrumented for measuring
back-scattered thermal radiation,
The twenty-one basic thermal instruments
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