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Power required for the intended operational time

Remote Pilot (Part 107) practice question 5 of 17 on Operations / Maintenance and Inspection. ACS element UA.V.F.K2 · difficulty: recall. Want to answer it in a timed quiz? Use the Remote Pilot (Part 107) practice mode.

Question bank updated 2026-09-22

QUESTIONUnder § 107.49(d), before flight with a powered small unmanned aircraft, the remote pilot in command must ensure there is enough available power for the system to operate for what period?

  1. AAt least 30 minutes beyond the planned landing
  2. BTwice the planned flight duration
  3. CThe intended operational time
Show the answer and explanation

Correct answer: C. The intended operational time

  • A — incorrect Part 107 sets no fixed reserve such as 30 minutes; the standard is the intended operational time.
  • B — incorrect No doubling rule appears in § 107.49(d); the requirement is power for the intended operational time.
  • C — correct § 107.49(d) requires enough available power for the sUAS to operate for the intended operational time.

BACKGROUND

Section 107.49 lists the preflight familiarization, inspection and actions the remote pilot in command must complete prior to flight. Paragraph (d) applies when the small unmanned aircraft is powered: the remote pilot must ensure there is enough available power for the small unmanned aircraft system (sUAS) to operate for the intended operational time. Battery exhaustion is a common cause of loss of control, so this check is the regulation's primary tool for mitigating that failure. The rule does not prescribe a numeric reserve; it ties the requirement to the planned operation.

STUDY TIP

When a question asks about battery or power before flight, look for the phrase "intended operational time."

KEY POINTS

  • § 107.49(d) covers available power for a powered small UA.
  • The standard is enough power for the intended operational time.
  • No fixed reserve figure is stated in part 107.

SOURCES

  • 14 CFR 107.49(d)
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MORE ON OPERATIONS / MAINTENANCE AND INSPECTION

SkyDrill is not affiliated with the FAA. This is an original practice item based on 14 CFR part 107, 14 CFR part 89, and the FAA Remote Pilot – Small UAS Study Guide (FAA-G-8082-22). Regulations and handbooks are revised; confirm details against the current edition.