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

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An airship envelope contains 200,000 cubic feet of helium. If the helium temperature increases by 10°F due to solar radiation while ambient air temperature remains constant (10°F positive superheat below pressure height), what is the approximate change in static lift?

Static lift increases by approximately 240 pounds Static lift decreases by approximately 150 pounds Static lift remains completely unchanged until reaching pressure height Static lift increases by approximately 1,200 pounds

Correct Answer:

Static lift increases by approximately 240 pounds

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