Home › Part 107 Practice Tests › Aviation Weather Questions › Question 73
Frost forms on a small drone's propellers and wing surfaces overnight before an early flight. What should the remote pilot do?
- A.Leave the frost because it adds only negligible weight
- B.Take off quickly so the frost blows off in flight
- C.Remove all frost before flight because it disrupts airflow and reduces performance
Correct answer
C. Remove all frost before flight because it disrupts airflow and reduces performance
Why
Frost roughens lifting surfaces and propeller blades in much the same way as ice, reducing lift and thrust. All contamination should be cleared before launch.
Source: FAA-G-8082-22 Ch. 5 (Weather Effects) · ACS knowledge area: Aviation Weather Sources and Effects · From the Aviation Weather practice bank (WEA-073).