Fourth mission of the manned balloon program of the US Navy, onboard were the Comander Malcolm D. Ross and the scientist Charle B. Moore. In this flight a Schmidt telescope brought by the John Hopkins University was mounted on the top side of the Gondola. First observation of water vapour on the atmosphere of Venus.
Balloon launched on: 11/28/1959
Launch site: Stratobowl, Black Hills, South Dakota, US
Balloon launched by: Winzen Research Inc.
Balloon manufacturer/size/composition: Zero Pressure Balloon Winzen
Balloon serial number: 172.6-200-V-78
Flight identification number: WRI 838
End of flight (L for landing time, W for last contact, otherwise termination time): 11/29/1959
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 28 h 15 m
Landing site: Near Blaine, Kansas, US
Payload weight: 3897 lbs
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