Radio direction-finding (cont'd.)
SCR-658, 12, 13-20, 56, 58, 60, 75,
78, 81, 98
Rate of rise, excessive, 13, 14, 16, 39
Rubber balloons, 5, 7
Seyfang, neoprene-coated nylon bal-
loons, 59, 63, 79, 94
Solid ballast for altitude control,
5, 7
Stepwise pattern of floating, 104
Sunset effect
on automatic ballast valve, 80, 90,
92
on buoyancy, 5, 75, 90
Superheat
effect on automatic ballast valve,
10, 74, 80, 92
effect on buoyancy, 75, 79
effect on Seyfang balloon, 59, 63,
79, 94
Superpressure balloons
Dewey and Almy, shrouded rubber,
23, 38, 66, 87
Seyfang, neoprene-coated nylon,
59, 63, 79, 94
Temperature measurements, need for
shown, 58, 63, 73, 78, 88, 103,
106, 107
Theodolite observation, 5, 7, 11, 13-
20, 56, 60, 75
Tracking
aircraft, 5, 7, 11, 12, 13-20, 86,
103
radar, 86, 75
radio direction-finding
airborne, 41, 103, 110
SCR-658, 12, 13-20, 56, 58, 60,
75, 78, 81, 98
Tracking (cont'd.)
theodolite, 5, 7, 11, 13-20, 56, 60,
75
Trajectories, 11, 55, 58, 103, 106, 110
Transmitters
3 mc (AM-1)
first use of, 12
longest reception distance with, 102
longest reception time with, 92
397 mc (T-69)
first use of, 12,
longest reception distance with, 82
longest reception time with, 82
Typical flight patterns, see Flight patterns,
typical
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