patch is on the equator, the oell does not collapse but serves as a
parachute to prevent extremely rapid fall and damage to the instruments.
Figure 3 shows this patch in position on a balloon. Due to prena ture
firings, a time ~itch hes been built into the circu~t to prevent misfiring
in launching. A rip device will be developed to replace the incendiary on
all future flights.
Section 3. Theoretical Relationships and Computations
A. Altitude-Density Relationships
An investigation into the relationship between density of the
atmosphere and altitude, with the seasonal and geographical variations
experienced,was made. T.he basic data, mean aerological soundings, were
taken from the Monthly Weather Review, 1943 6• These basic data consisted
of observed temperatures, pressures, and humidities for altitudes from the
surface up to the bursting height of balloons, normally 50,000 to 60,000
feet. For altitude above this height, the highest reported temperatures
for the stations under consideration were used and the pressure data were
taken for the remaining altitudes up to 100,000 feet, from the N.A.C.A.
7
Standard Atmosphere •
Density was expressed inversely in terms of poun~ molar volumes,
as this relates volume in cubic feet to buoyancies of gases of varying
purity, using fundamental data. Using the simple ~as laws, the molar
volume of dry air at each altitude was computed in the following manner:
Given: (l) The pound molar volume of any gas at standard
conditions=359 ft. 3
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