Discover our new portal: your complete exam preparation, enhanced by AI

Login Start Now

Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Performance > Assuming both flight levels are permitted by all aircraft and operational limits, which wind condition could make cruising 4000 ft or more below the still-air optimum altitude more fuel-efficient over the ground, if the wind benefit outweighs the lower-altitude fuel penalty?

121 - ATPL Question Bank in English - Assuming both flight levels are permitted by all aircraft and operational limits, which wind condition could make cruising 4000 ft or more below the still-air optimum altitude more fuel-efficient over the ground, if the wind benefit outweighs the lower-altitude fuel penalty?

Question 121 - Performance - ATPL - Airline Transport Pilot Licence

If the maximum altitude is below the optimum altitude.

If at the lower altitude either considerably less headwind or considerably more tailwind can be expected.

If at the lower altitude either more headwind or less tailwind can be expected.

If the temperature is lower at the low altitude (high altitude inversion).

This is 1 of over 150 exam questions on Performance

Take a test with 10 questions

Training tests and timed exam simulations ATPL - Airline Transport Pilot Licence

Performance Training! PRO Question explanation