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This is a free sample preview of the essay
Airships
Beginning of essay
INDEX
PROLOGUE 2
TYPES OF AIRSHIP 2
RIGID AIRSHIP 2
NONRIGID AIRSHIP 3
HISTORY O ....
Middle of essay
....ting that transmitted
the lifting force of their gas to the structure. Each gas cell had two or
more valves, which operated automatically to relieve pressure when the gas
expanded with altitude, the valves could also be operated manually so that
the pilot could release gas whenever desired.
Also on board was a ballast system that used water as ballast. On the
ground this ballast served to make the airship heavier than air. When part
of it was released, the airship ascended to a cruising altit.... |
| Number of words: 1764 |
Approximate pages: 7 |
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