TC Gyroplane Pilot Permit (GYROP) study materials
TC Gyroplane Pilot Permit (GYROP) study resources

TC Gyroplane Pilot Permit (GYROP) cheat sheet

TC Gyroplane Pilot Permit (GYROP) · Keep the key ideas within reach.

Quick reference

Air Law

  • Canadian Aviation Regulations Part IV governs pilot licensing; a Gyroplane Pilot Permit requires a minimum of 45 hours total flight time, including 20 hours dual instruction and 10 hours solo.

  • A gyroplane pilot must hold a valid Category 3 medical certificate to exercise the privileges of the permit; a Category 4 medical is acceptable only for recreational purposes with specific passenger restrictions.

  • The pilot-in-command is responsible for the airworthiness and safe operation of the aircraft, including ensuring the aircraft journey log and technical records are current before flight.

  • Passengers may be carried only if the pilot holds the appropriate rating and has completed the required recent experience: 5 takeoffs and landings within the preceding 6 months.

  • Daylight currency: a pilot must have completed 5 takeoffs and 5 landings in the preceding 90 days to carry passengers; night currency requires 5 night takeoffs and landings.

  • Aircraft registration marks must be displayed on the gyroplane; the certificate of registration and certificate of airworthiness (or flight permit) must be carried on board.

  • Minimum fuel reserve for VFR day flight is 30 minutes of flight time at normal cruising speed; for night VFR it is 45 minutes.

  • Pilot logbooks must record dual, solo, and pilot-in-command time separately; entries must be signed by the pilot and, for dual instruction, by the instructor.

Quick reference

Aerodrome and Airspace Procedures

  • Class C airspace requires a transponder and two-way radio; Class D requires two-way radio; Class E requires neither unless specified in the CFS.

  • A gyroplane must be operated under VFR with minimum visibility of 3 statute miles in controlled airspace and 1 mile in uncontrolled airspace below 1000 ft AGL.

  • Circuit altitude at a controlled aerodrome is normally 1000 ft AGL; join the circuit on the downwind leg at 45 degrees to the runway threshold unless ATC directs otherwise.

  • Mandatory frequency (MF) aerodromes require radio calls on the published frequency: before entering the circuit, on downwind, on final, and after clearing the runway.

  • The ATIS broadcast provides current weather, runway in use, and altimeter setting; a pilot must obtain ATIS before contacting ground or tower at a controlled aerodrome.

  • Right-of-way rules: an aircraft on final approach has priority; a lower aircraft has priority over a higher one; overtaking aircraft must pass on the right.

  • A gyroplane must not operate within the built-up area of a city or town below 1000 ft AGL except for takeoff, landing, or with permission from the appropriate authority.

  • Special VFR clearance may be requested in controlled airspace when VFR minima are not met; it requires 1 mile visibility and clear of cloud.

Quick reference

Gyroplane Flight Operations and Performance

  • Takeoff distance increases with density altitude; a 10°C rise in temperature or a 1000 ft increase in elevation increases ground roll by approximately 10-15%.

  • The rotor must be brought up to flight RPM before starting the takeoff roll; prerotator engagement should be smooth to avoid exceeding the rotor RPM limit.

  • Landing distance is affected by wind gradient and surface type; a 10% increase in gross weight increases landing distance by approximately 20%.

  • Best rate of climb speed (VY) is typically 45-55 mph; best angle of climb speed (VX) is lower, typically 40-45 mph, and is used to clear obstacles.

  • The gyroplane must be flown at a minimum of 1.3 times the power-off stall speed (or minimum level flight speed) on final approach; typical approach speed is 50-60 mph.

  • Fuel consumption should be calculated at the cruise power setting; a gyroplane typically burns 4-6 gallons per hour depending on engine and loading.

  • Crosswind limits are determined by pilot proficiency and aircraft type; a typical demonstrated crosswind component is 15-20 mph for light gyroplanes.

  • Weight and balance must be computed before each flight; exceeding the forward CG limit can reduce rotor authority and increase takeoff distance.

Quick reference

Gyroplane Theory of Flight

  • A gyroplane's rotor is autorotating, driven by aerodynamic forces rather than an engine; the engine drives the propeller, not the rotor.

  • Lift is generated by the rotor blades as they move through the air; the advancing blade sees higher relative airspeed than the retreating blade, causing flapping to equalize lift.

  • Dissymmetry of lift is compensated by blade flapping and lead-lag; without flapping, the advancing blade would generate excessive lift and the retreating blade insufficient lift.

  • Autorotation is maintained when the rotor's angle of attack remains below the stall angle; a decrease in airspeed or an increase in load factor can cause blade stall.

  • The rotor disc acts as a wing; induced drag decreases with airspeed, so the gyroplane has a characteristic power curve with a minimum power speed.

  • Gyroplanes cannot hover; they require forward airspeed to maintain autorotation and lift, unlike helicopters which can hover with powered rotors.

  • Rotor RPM is largely independent of airspeed in normal flight; it is governed by the balance between driving and driven regions of the rotor disc.

  • A vertical descent in a gyroplane is possible at low forward speed; the rotor still autorotates, but control authority is reduced and descent rate is high.

Quick reference

Stability and Control

  • Longitudinal stability is provided by the horizontal stabilizer and the rotor's flapping characteristics; a horizontal stabilizer helps damp pitch oscillations.

  • The gyroplane is typically stable in pitch due to the rotor's tendency to align with the relative wind; however, a low thrust line can cause pitch instability.

  • Lateral stability is enhanced by rotor flapping and dihedral effect; the gyroplane tends to roll away from the direction of turn unless corrected.

  • Yaw control is provided by the rudder; adverse yaw is minimal in gyroplanes because roll is controlled by rotor tilt rather than ailerons.

  • Control forces are light in a gyroplane; over-controlling is a common error, and smooth control inputs are essential to avoid pilot-induced oscillation.

  • A power push-over can occur if thrust line is above the center of gravity; the nose pitches down when power is applied, requiring counter-input.

  • Dutch roll is a coupled oscillation in yaw and roll; it is damped by the vertical stabilizer and rudder, and can be excited by abrupt control inputs.

  • Stick position controls rotor disc tilt; moving the stick forward tilts the disc forward, increasing airspeed; moving it aft tilts the disc aft, reducing airspeed.

Quick reference

Meteorology

  • Density altitude is pressure altitude corrected for non-standard temperature; high density altitude reduces engine power and rotor efficiency, increasing takeoff distance.

  • Wind gradient is the change in wind speed with height; near the surface, wind speed decreases, and a gyroplane on approach may experience a sudden loss of airspeed.

  • Mountain waves form when stable air flows over a ridge; they can cause severe turbulence and downdrafts on the leeward side, extending several thousand feet above the ridge.

  • A microburst is a concentrated downdraft that can cause a sudden loss of airspeed and altitude; avoid flying near thunderstorms or virga.

  • Frost must be removed from rotor blades and airframe before flight; frost disrupts airflow and can reduce lift by up to 30%.

  • The standard lapse rate is 2°C per 1000 ft; temperature inversions can trap moisture and cause fog, reducing visibility.

  • Ceiling and visibility minima for VFR flight in uncontrolled airspace: 1 mile visibility and clear of cloud when below 1000 ft AGL.

  • Wind shear on final approach can cause a sudden increase or decrease in airspeed; a go-around should be initiated if airspeed control is lost.

Quick reference

Navigation and Radiotelephony

  • Pilotage is navigation by reference to landmarks; dead reckoning uses heading, airspeed, and time to calculate position; both should be used together.

  • Magnetic heading equals true heading plus magnetic variation (east is least, west is best); deviation is the error caused by the aircraft's magnetic field.

  • A VOR radial indicates the bearing from the station; to fly to the station, the pilot should track the reciprocal of the selected radial.

  • Radio phraseology: 'Mayday' is used for distress, 'Pan-Pan' for urgency; both are repeated three times at the start of the call.

  • Position reports should include aircraft identification, position, altitude, and intentions; at MF aerodromes, report before entering the circuit and on final.

  • Transponder code 7700 indicates an emergency, 7600 indicates radio failure, and 7500 indicates unlawful interference.

  • A flight plan must be filed for cross-country flights; it should include route, altitude, estimated time en route, and fuel endurance.

  • Altimeter setting: set to the current altimeter setting when below the transition altitude; above it, set to standard pressure (29.92 inHg or 1013 hPa).