Balloon launched on: 6/25/1952 at 11:00 local
Launch site: University of Minnesota Airport, New Brighton, US
Balloon launched by: General Mills Inc.
Balloon manufacturer/size/composition: Zero Pressure Balloon 715.000 cuft - General Mills 116 Foot (Type 1161A)
Balloon serial number:
Flight identification number: Developmental flight # 21
End of flight (L for landing time, W for last contact, otherwise termination time): 6/25/1952 at 13:17 local
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 2 h 17 m
Landing site: Balloon broke on jet Stream at 47.6 kft. Payload recovered badly 3 miles E of Cumberland, Winsconsin, US
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