FAA Part 107 Remote Pilot (UAG)Loading and PerformanceMedium
A remote pilot plans a long-range mapping mission with strong headwinds expected on the return leg. What is the most significant performance consideration?
- ABattery consumption will increase on the return leg due to reduced groundspeed, potentially shortening range
- BHeadwinds only affect fixed-wing aircraft, not multirotors
- CGroundspeed will increase on the return leg, extending battery reserve
- DWind has no effect on electric multirotor battery consumption
Show answer & explanationAnswer & explanation
Correct answer: A. Battery consumption will increase on the return leg due to reduced groundspeed, potentially shortening range
A headwind reduces groundspeed, meaning the aircraft must fly longer in time and expend more battery energy to cover the same ground distance, which can shorten usable range and threaten a safe return.
Why the other options are wrong
- B. Headwinds affect all aircraft types, including multirotors, since they must overcome wind to make progress.
- C. Headwinds reduce, not increase, groundspeed.
- D. Wind significantly affects battery consumption in electric aircraft, including multirotors.
Wind Effects on Battery Endurance
Headwinds reduce groundspeed, increasing flight time and battery consumption needed to reach a destination, which can shorten usable mission range.
- Headwind reduces groundspeed, increases battery use
- Tailwind increases groundspeed, saves battery
- Crosswinds require heading correction
Memory trick: Fighting a headwind drains your battery like running against a treadmill.