AINGTIP TANK SAMPLING SYSTEM
LOADING ae
vent
VALVE
JET FUEL
AIR FLOW
ate scoop
FILTER PAPER
SAMPLING PROBE
BUL HEAD
SS
TON CHAMBER
arc-3 RADIO
SAMPLING PANEL
GAS SAMPLE SYSTEM
APX-6 [FF
ARA-8 OF
F-5 AUTO PILOT
CABIN PRESSURIZATION
FILTER
PARTICLE SAMPLER
Figure 23.
F-84G sampler aircraft, CASTLE.
general requirements that were later formalized by the IVY/CASTLE Scien-
tific Director and approved by the laboratory.
A new emphasis on high-
altitude sampling was specified by the sampling project manager; such missions required an aircraft capable of operating at or about 55,000 feet
(16.76 km)
for at least one-half hour
(Reference 29, p. 95).
was made in August 1953 to use the same 15
A decision
(one was lost during IVY)
F~84G
aircraft that were used in IVY and two featherweight B-36 aircraft.
All the F-84G aircraft were rewired, fitted with new electronics, including a new type gamma intensity rate meter, and ten were equipped with
a new gas-sampling device called a "double-squeegee.”
135
The remaining five