Home › Part 107 Practice Tests › Loading, Performance & Airport Operations Questions › Question 43
Why do many pilots climb briskly through the first few feet after takeoff rather than lingering just above the surface?
- A.To drain the battery faster and lighten the aircraft
- B.Because hovering low is prohibited by Part 107
- C.To leave the unsteady ground-effect region and reach cleaner air
Correct answer
C. To leave the unsteady ground-effect region and reach cleaner air
Why
The air within roughly a rotor diameter of the surface is disturbed by recirculating wash. A positive climb to a stable hover height gives cleaner control for the pre-maneuver check.
Source: FAA-G-8082-22 Ch. 8 · ACS knowledge area: Determining the Performance of an sUAS · From the Loading, Performance & Airport Operations practice bank (PER-043).