ERIE)
Project 5.7 - Thermal Flux and Albedo Measurements from Aircraft It. P. F. Harward
OBJECTIVE
The objective of this shot was to obtain thermal flux and albedo
information of a nuclear detonaticn 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-57 included nineteen NRDL calorimeters and two NRDL
radiometers for measuring the direct and surface reflected thermal
radiation,
q
These instruments possessed various fields of view and
were suitably filtered to obtain qualitative spectral distribution
information,
Six GSAP N-9 cameras were utilized to obtain photo-
graphic coverage of the fireball, the carth's surface, and of clouds
beneath the aircraft.
Two of the cameras oriented towards ground zero
were equipped with spectroscopic attachments to obtain continuous
spectra in the visible region.
Of the other two tail position cameras,
one camera had a blue filter and the other had a red filter for the
purpose of obtaining pictures at both extremes of the visible region
of the spectrum,
The remaining two cameras were oriented vertically
for the purpose of obtaining photographic coverage of the earth's
surface and of clouds beneath the aircraft.
Instrumentation installed in the B-66 consisted of the basic
twenty-one thermal instruments, and twelve cameras,
AIRCRAFT POSTTION IN SPACE
Information of the position in space of each aircraft is contained
LANL RC
~ 25 -
/
aN
+ COPIED/DOE