Definition of ballonet in English:


Syllabification: bal·lo·net
Pronunciation: /ˌbaləˈnā
(also ballonnet)


A separate gas- or air-filled compartment within the main envelope of a balloon or airship, designed for the maintenance or adjustment of the envelope’s shape, buoyancy, or orientation.
More example sentences
  • The helicopter is fitted with ballonet flotation devices for emergency landing on water.
  • As a rule, such airships have a soft structure of a ballonet and consequently a considerable drag.
  • This triggers an automatic mechanism that pumps air into the ballonet compartment to compensate.



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