includes rate of ballast expenditure, diffusion, leakage, and stability of control.
By-product information of importance to meteorology or balloon flying techniques includes the following: Observation, measurement and theoretical analysis of high altitude atmospheric oscillations has been accomplished. These oscillations are several millibars in amplitude (as indicated on balloon barograph traces) and the period of oscillation varies between 4 and 10 minutes. Air mass trajectories have been measured over ranges up to about 400 miles and have been indicated by the recovery of gear up to 2,000 miles from the launching point. Additional field tests on air mass trajectories are now being made.
Complementary Contracts:
a. New York University
No. W28-099-ac-241
"Development of Constant Level Balloon"
b. Melpar, Inc.
No. W28-099-ac-429
"Development of Balloon Telemetering System"