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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Performance > In the quasi-steady descent approximation, an aeroplane descends from FL410 to FL270 at constant Mach, then to FL100 at constant IAS. Assume fixed mass and clean configuration, negligible idle thrust and kinetic-energy corrections, incompressible flow, and flight on the high-speed side of minimum drag. How does the descent angle change in the first and second parts?

123 - ATPL Question Bank in English - In the quasi-steady descent approximation, an aeroplane descends from FL410 to FL270 at constant Mach, then to FL100 at constant IAS. Assume fixed mass and clean configuration, negligible idle thrust and kinetic-energy corrections, incompressible flow, and flight on the high-speed side of minimum drag. How does the descent angle change in the first and second parts?

Question 123 - Performance - ATPL - Airline Transport Pilot Licence

Increases in the first part; is constant in the second.

Is constant in the first part; decreases in the second.

Increases in the first part; decreases in the second.

Decreases in the first part; increases in the second.

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