Gyroplane Flight Operations and Performance
Pre-flight and inspections
Gyroplanes have specific pre-flight items: rotor blade condition and tie-down, teeter bolt and hub bar, prerotator, rotor brake, control rigging, and the integrity of the mast and cheek plates. Daily inspection and journey log entries are regulatory, not optional. Understand that rotor blades are life-limited and that unauthorized modifications are prohibited.
Takeoff, landing, and the wind envelope
Gyroplanes can perform short or vertical takeoffs depending on rotor energy and wind. Know the difference between a jump takeoff (requires a collective and sufficient rotor RPM) and a rolling takeoff. Landings include the vertical descent, the slow landing, and the running landing. Wind limits are pilot- and machine-specific; questions test the principle that rotor RPM and airspeed must both be managed, and that downwind takeoffs reduce performance.
Performance factors
Density altitude, gross weight, and wind dominate performance. High density altitude reduces both engine power and rotor lift, lengthening the takeoff run and reducing climb rate. Know the effect of a tailwind on both takeoff and landing distance, and the concept of the height-velocity (dead man's) curve.
Traps and a worked example
Traps: assuming a gyroplane can hover (it cannot), confusing autorotation with a helicopter's powered flight, and ignoring the effect of density altitude on rotor RPM.
Worked rule: Density altitude rises roughly 120 feet per degree Celsius above standard temperature at a given elevation. A 2,000 ft aerodrome at 30°C (ISA +15°C) has a density altitude near 3,800 ft, so plan a longer takeoff roll and a shallower climb.