Service Balloon

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Service Balloon

 

a free balloon that, with a volume of up to 150 cu m, is designed to lift a person to an altitude of 100–150 m. The lifting force of the service balloon at the earth’s surface is equal to the weight of a person or, sometimes, slightly less. During the 1930’s service balloons were used to examine the envelopes of stratosphere balloons at their launch sites.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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