protection by fixed-density optical filters was explored.
1 Redwing:
ft in
velopmental protective electroni
Results at yields o
:
emonstrated
reflex does not protect against chorioretinal burns. The
cause
i
lesions at 8.1 statute miles. The device
in span,
i on three
mu. The
, 24,000,
2 ranging
Two types of de-
e field-tested.
blink
ic
produced burns at 7.6 statute miles but notas
miles.
,
of 12.9 and 21.6 miles.
The lower effective range of burning at the PPG
is attributed to higher atmospheric attenuation from excessive humidity and
salt spray from the reefs. Note is made that additional information is
b
“4
t
in order to determine the limiting dis
ind suffered
Bend, especially, higher yields.
is not
'
the long
ure col-
’
far as 14.4
Burns were not obtained from devices of 3.5-Mt yield at distances
Both
retinal burns
produced retinal burns in two of the eight animals exposed
pulse.
at
evices
to only the first
Both detonations produced burns during the second pulse.
The optical filters tested at near-threshold distances prevented retinal
burns. At intermediate distance, filters reduced the incidence and severity
ture on
2oretical
f
wngth of the
of the lesions.
The results obtained on protective shutters were inconclusive
but can guide future development.
seeee 8
ured to
durine
wane amen ome pew
eb
tinal Burns, ase, Texas. i
ile. In
E
res of
_ studies
'
" niniais
1 burns were
ation on
th rabbits
ous parts
rioretinal
aries of
closed at
{
2.1.
Program 5 included nine projects primarily concerned with the determination of the capability to deliver nuclear weapons of six Air Force types
of aircraft and one Navy aircraft. One project, sponsored by the AFCRC,
provided thermal-measurement support, and another will provide data on the
thermal lethality of a nuclear detonation to certain basic missile structures
and materials. Secondary objectives of the aircraft projects were to (1) obtain data for basic research and design of future aircraft, and (2) verify or
correct the present analytical methods for the prediction of weapon-effect
inputs and the resultant responses by the aircraft structure.
A test of an Air Force B-47 successfully obtained data for wing-
bending idads from 39 to 91 per céntof design limit and temperatures of ©
up to 550°F on thin-skinned control surfaces by the use of high-absorptivity
paints. Some measurements of the effects of side loads on the aircraft
structure were also made. Correction of the Weapon Delivery Handbook for
the B-47 will be made after data evaluation.
A test of an Air Force B-52 proved its capability to deliver high-yield
nuclear weapons. Extensive thermal, overpressure, and gust measurements
will result in fairly clear definition of the safe-delivery envelopes. It
appears that 0.9 psi will be the limiting overpressure, instead of 0.8 psi as
|
zero, were
ibility of
Program 5, Aircraft Structures
had been predicted prior to the test series.
- 33 -
The ability to predict structural