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Project 5.7 - Thermal Flux and Albedo Measurements from Aircreft Capt R. L. Dresser
OBJECTIVE
The objective of Project 5.7 participation on this shot was to obtain
thermal flux and altedo information of a nuclear detonation with airborne
calorimeters, radiometers, and sixteen millimeter motion picture cameras.
INSTRULENTATION

Instrumentation within the province of Project 5.7 which was installed
in the B-47 included 19 NADL celorimeters and two NRDL radiometers for measur-

ing the direct and surface reflected thermal rediation.

Six additional

calorimeters were utilized to measure thermal rediation which was backscattered toward the cockpit.

Seven GSAP N-9 cameras were utilized to obtain

photographie 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 contribute to the back-scattered radiation,
Project 5.7 instrumentation on the B-52 included the 21 besic instruments
for thermal radiation measurements, but only an additional two instruments
were utilized for beck-scatter measurements.

Eight GSAP cameras were utilized

for photographie coverage.

Project 5.7 instrumentation on the B-57 consisted of the basic 21
instruments and six cameras.
Project 5.7 instrumentation on the 5-66 consisted of the basic 21
instruments and 12 cameras.
Neither tactical bomber (B-66, B-57) was instrumented for measuring backscattered thermal radiation,

The 21 basic thermal instruments possessed

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