FAA PLA Knowledge Test - Private Pilot Airship Practice Questions - FAA Private Pilot Airship Knowledge Test (Test Code PLA) Exam

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According to Archimedes' principle as applied to aerostats, what determines the gross static lift produced by an airship's envelope?

The weight of the atmospheric air displaced minus the weight of the lifting gas contained within the envelope The total dynamic pressure generated by the airship's forward velocity over the envelope The temperature differential between the ambient air and the air inside the ballonets The weight of the lifting gas divided by the ambient barometric pressure

Correct Answer:

The weight of the atmospheric air displaced minus the weight of the lifting gas contained within the envelope

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