What is the maximum groundspeed permitted for a small unmanned aircraft under Part 107?

• A.60 mph (52 knots)
• B.100 mph (87 knots)
• C.87 mph (100 knots)

Why

Section 107.51(a) limits groundspeed to 100 mph, which is 87 knots. The knot and mph figures are a classic swap trap: 100 goes with mph, 87 goes with knots.

Source: 14 CFR 107.51 · ACS knowledge area: Applicable Regulations · From the Regulations & Registration practice bank (REG-093).

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More Maximum Groundspeed questions

• Under 14 CFR Part 107, a small unmanned aircraft is an unmanned aircraft weighing how much on takeoff, including everything on board or attached?
• A recreational flyer is generally required to register an unmanned aircraft with the FAA when its takeoff weight is
• You plan to fly a 0.4-pound unmanned aircraft commercially under Part 107. Which statement about registration is correct?
• How much does FAA registration cost for one small unmanned aircraft, and how long is the registration valid?
• Where must the FAA registration number be placed on a small unmanned aircraft?