Balloon launched on: 6/30/1959 at
Launch site: Joe Foss field, Sioux Falls, South Dakota, US
Balloon launched by: Raven Industries Inc.
Balloon manufacturer/size/composition: Zero Pressure Balloon
End of flight (L for landing time, W for last contact, otherwise termination time): 6/30/1959
Landing site: Balloon lost in a thunderstorm. Never recovered
If you consider this website interesting or useful, you can help me to keep it up and running with a small donation to cover the operational costs. Just the equivalent of the price of a cup of coffee helps a lot.