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411 - Gas Balloon Pilot Exam BPL - At equilibrium the inner overpressure of a free balloon is highest at:

Question 411 - Principles of Flight (Balloon) - Exam BPL Gas - Balloon Pilot License

At the equator
The upper pole
At the center of the hull
At the lower opening

This is 1 of over 20 exam questions on Principles of Flight (Balloon)

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Training tests and timed exam simulations Exam BPL Gas - Balloon Pilot License