Purpose of the flight and payload description

The so-called SUPER SKYHOOK mission was a test flight of a 3.200.000 cubic feet balloon manufactured by General Mills. At the time it was the largest one ever made. The balloon measuring 282 feet long when deflated and 200 feet in diameter at full inflation was made of polyethylene plastic 0.0012 inch thick and designed to float at an altitude of 120,000 feet.

The payload provided by the Office of Naval Research was devoted to study cosmic-ray particles.

Details of the balloon flight

Balloon launched on: 5/18/1954
Launch site: University of Minnesota Airport, New Brighton, US  
Balloon launched by: General Mills Inc.
Balloon manufacturer/size/composition: Zero Pressure Balloon General Mills - 3.200.000 cuft (200 feet in diameter)
End of flight (L for landing time, W for last contact, otherwise termination time): 5/18/1954
Balloon flight duration (F: time at float only, otherwise total flight time in d:days / h:hours or m:minutes - ): 13 h
Landing site: Near Waseca, Minnesota, US
Payload weight: 400 lb

The balloon was launched on May 18, 1954, at the General Mills Flight Facility in the University of Minnesota airport near New Brighton. After a nominal ascent, the balloon reached an altitude of 116.700 feet breaking the existing world's altitude record of 111,000 feet. The balloon drifted about 190 miles cross country and in clear areas, the balloon was visible for 80 to 90 miles. After 13 hours aloft, the flight was terminated. The payload was recovered near Waseca while the balloon landed in Madison Lake, both cities in Minnesota.

External references

Images of the mission

One of the stages in the inflation and launching of the General Mills ''Super Sky Hook The balloon fully inflated (Image: Life Magazine) The balloon just released (Image: General Mills) The balloon ascending (Image: Life Magazine) The payload landing under the parachute (Image: Life Magazine)

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