Exhaust valve and maneuvering structure for lighter-than-air air

Details Exhaust valve and maneuvering structure for lighter-than-air air Exhaust valve and maneuvering structure for lighter-than-air air

1977-01-28

1983-09-06

Frankfort, Charles E.

Aeronautics and astronautics

Aircraft control

Drag

244 31, 244 97, B64B 162

Patent

active

044024762

ABSTRACT:
A lighter-than-air (LTA) aircraft having a valve structure affording the rapid removal of the lifting gas. The valve comprises a circular panel sewn within the envelope about an upper opening in the envelope for approximately one-third of its periphery and sealed thereabout by a releasable fastening tape. The sewn portion and tape portion of the valve being spaced 5 to 10 inches from the opening. A drape may extend beyond and depend from the fastening tapes. Gas may be exhausted from the aircraft in flight by collapsing opposed sides to force gas from a lower opening as is present in hot air balloons.

REFERENCES:
patent: 1290979 (1919-01-01), Griffith
patent: 2404659 (1946-07-01), Rohulick
patent: 2526719 (1950-10-01), Winzen
patent: 3860201 (1975-01-01), Hall
patent: 3945592 (1976-03-01), Sutton
patent: 4033527 (1977-07-01), Parsons

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