FAA Private Pilot - Gyroplane (PRG) study materials
FAA Private Pilot - Gyroplane (PRG) study resources

FAA Private Pilot - Gyroplane (PRG) cheat sheet

FAA Private Pilot - Gyroplane (PRG) · Keep the key ideas within reach.

Quick reference

Regulations and Airman Privileges

  • A private pilot gyroplane certificate requires a minimum of 40 hours total flight time, including at least 20 hours of gyroplane flight time.

  • Of the 20 gyroplane hours, a minimum of 15 hours must be dual instruction and 5 hours must be solo flight, including at least 3 solo takeoffs and landings.

  • A third-class medical certificate is required to exercise private pilot privileges; BasicMed may be used if the pilot meets its eligibility conditions.

  • Private pilots may not act as pilot in command for compensation or hire, but may share operating expenses with passengers under 14 CFR 61.113.

  • To carry passengers, a pilot must have logged at least 3 takeoffs and 3 landings within the preceding 90 days in the same category, class, and type (if type rating required).

  • A flight review (14 CFR 61.56) consisting of at least 1 hour ground and 1 hour flight training is required every 24 calendar months.

  • Pilot logbooks must be retained and made available on request; currency and recent flight experience records must be kept for the periods specified in 14 CFR 61.51.

Quick reference

Aerodynamics and Principles of Gyroplane Flight

  • A gyroplane's rotor is autorotative: it is driven by airflow upward through the disc, not by engine power, so loss of engine power does not stop rotor rotation.

  • Rotor thrust equals the vector sum of lift and drag; tilting the rotor disc rearward increases lift and drag, slowing airspeed.

  • Dissymmetry of lift is the difference in lift between advancing and retreating blades; blade flapping and cyclic feathering equalize lift across the disc.

  • Flap-back is the rearward tilt of the rotor disc that occurs with increasing airspeed; it reduces the angle between the disc and the relative wind.

  • A gyroplane cannot stall in the fixed-wing sense, but can enter a power pushover (bunt) if the rotor is unloaded by abrupt forward cyclic or negative G.

  • Rotor RPM is largely a function of airspeed and load; low airspeed and high load can reduce RPM, and rotor RPM decay leads to blade stall and loss of control.

  • Precession is the 90-degree lag between an applied force and the resulting blade displacement; cyclic inputs must lead the intended disc change by 90 degrees.

  • Ground effect reduces induced drag near the surface, allowing lower power settings and shorter takeoffs and landings.

Quick reference

Weight, Balance, and Performance

  • Maximum gross weight is the sum of empty weight, occupants, baggage, and fuel; exceeding it degrades climb, ceiling, and rotor performance.

  • Center of gravity limits are expressed as a range forward and aft of the datum; an aft CG reduces stability and increases power-pushover risk.

  • Weight and balance must be computed before each flight using current empty weight and arm data, not the aircraft's original factory figures.

  • Takeoff and landing distances increase with density altitude, gross weight, and tailwind; POH charts provide the only approved performance data.

  • Density altitude is pressure altitude corrected for nonstandard temperature; high density altitude reduces rotor and engine performance.

  • Use the POH performance charts for the specific gyroplane model; generic or fixed-wing charts are not valid substitutes.

  • Fuel planning must account for taxi, climb, cruise, descent, and a legal reserve of at least 30 minutes during day and 45 minutes at night.

Quick reference

Meteorology and Weather Services

  • METARs report current surface weather; TAFs forecast conditions within 5 statute miles of an airport and cover periods up to 24 or 30 hours.

  • Standard lapse rate is 2°C per 1,000 feet; the standard atmosphere at sea level is 15°C and 29.92 inHg.

  • Density altitude increases approximately 120 feet for each 1°C above standard temperature at a given elevation.

  • AIRMETs cover moderate hazards (Tango for turbulence, Sierra for IFR/mountain obscuration, Zulu for icing); SIGMETs cover severe or extreme hazards.

  • Wind shear and mountain wave activity can produce severe turbulence and downdrafts; gyroplanes are especially sensitive to low-level wind shear during takeoff and landing.

  • Convective activity should be avoided because thunderstorms contain embedded severe turbulence, hail, and microbursts that exceed gyroplane structural limits.

  • A ceiling is the lowest broken or overcast layer; visibility of 3 statute miles or more is generally required for VFR in Class G airspace during the day.

Quick reference

Navigation, Charts, and Flight Planning

  • Sectional charts use a scale of 1:500,000; 1 inch on the chart equals approximately 6.86 nautical miles.

  • True course is measured from the chart; true heading equals true course plus wind correction angle; magnetic heading equals true heading minus magnetic variation.

  • Compass heading equals magnetic heading adjusted for deviation, which is read from the compass correction card.

  • A nautical mile equals 1.15 statute miles; fuel consumption is typically planned in gallons per hour and converted to time en route.

  • Pilotage uses visual landmarks and dead reckoning uses computed time, heading, and speed; GPS should be cross-checked against them.

  • Class B airspace appears as solid blue lines, Class C as solid magenta, Class D as dashed blue, and Class E as dashed magenta on sectional charts.

  • Obstacles higher than 1,000 feet AGL are shown with MSL elevation; those lower may be omitted from sectional charts.

Quick reference

Airspace, ATC, and Radio Communications

  • Class A airspace begins at 18,000 feet MSL and requires an IFR clearance and Mode C transponder.

  • Class B airspace requires an explicit ATC clearance; Class C and D require two-way radio communication established before entry.

  • Class E airspace may be controlled without an operating control tower; Class G is uncontrolled and VFR minimums depend on altitude and time of day.

  • Transponder Mode C is required in Class A, B, and C airspace and above 10,000 feet MSL, and within the Mode C veil around Class B airports.

  • The phonetic alphabet uses Alfa, Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliett, Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu.

  • Emergency frequency is 121.5 MHz; the universal distress call is MAYDAY and the urgency call is PAN-PAN.

  • Squawk 7700 for emergencies, 7600 for radio failure, and 7500 for hijacking.

Quick reference

Airport Operations and Traffic Patterns

  • The standard traffic pattern is left-hand unless published otherwise; entry is normally at pattern altitude on the downwind leg at 45 degrees to the midpoint.

  • Pattern altitude is typically 1,000 feet AGL; gyroplane patterns may be lower where published and should be flown to match other traffic.

  • Runway markings: white edge lines, yellow centerline, threshold bars, and displaced thresholds indicate landing area restrictions.

  • Wind indicators include the windsock (approximate direction and speed), tetrahedron, and wind tee; the segmented circle shows pattern direction.

  • Right-of-way rules: aircraft in distress, then balloons, gliders, airships, aircraft towing, and powered aircraft in that order; converging aircraft give way to the one on the right.

  • A stabilized approach should be established by short final with target airspeed and descent rate; go-arounds are mandatory if the approach is unstable.

  • Wake turbulence is generated by heavy aircraft and is worst when the generating aircraft is heavy, slow, and clean; gyroplanes should land beyond the touchdown point and avoid the vortices.

Quick reference

Gyroplane Systems and Rotorcraft Maintenance

  • The rotor system includes blades, hub bar, teeter bolt, and control linkage; preflight inspection must check blade condition, bolt security, and control freedom.

  • Rotor blades are typically aluminum or composite; cracks, delamination, and leading-edge damage require removal from service.

  • The engine, propeller, and rotor are independent systems; propeller thrust provides forward speed while the rotor provides lift.

  • A prerotator spins the rotor before takeoff; rotor RPM must reach the manufacturer's minimum before brake release and takeoff roll.

  • Maintenance must follow the manufacturer's inspection program; annual inspections are required for aircraft used for compensation or hire, and condition inspections for experimental aircraft.

  • Fuel contamination checks, oil level, and coolant level are part of every preflight; the fuel selector must be set to a tank with adequate fuel.

  • Control rigging and rotor tachometer accuracy should be verified at each condition inspection; incorrect rigging can cause loss of control.

Quick reference

Emergency Procedures and Safety of Flight

  • In an engine failure, lower the collective or reduce power, maintain rotor RPM, and execute an autorotative descent to a suitable landing area.

  • Autorotation requires maintaining airspeed and rotor RPM; the flare at low altitude converts forward speed into rotor energy for a soft touchdown.

  • A power pushover (bunt) is countered by reducing forward cyclic and restoring positive G-loading; recovery requires prompt aft cyclic.

  • Rotor RPM decay is corrected by lowering the nose to increase airflow through the disc and reducing load.

  • Fire in flight: shut off fuel, execute a forced landing, and evacuate after landing; do not restart the engine.

  • Lost procedures: climb, conserve fuel, and use radio and navigation aids; declare an emergency with ATC if fuel becomes critical.

  • Emergency descent should be planned away from populated areas; use 121.5 MHz and squawk 7700 to alert ATC.

Quick reference

Human Factors and Aeronautical Decision Making

  • The IMSAFE checklist covers Illness, Medication, Stress, Alcohol, Fatigue, and Emotion before flight.

  • The DECIDE model: Detect, Estimate, Choose, Identify, Do, Evaluate - a structured decision-making process for in-flight problems.

  • Hypoxia symptoms include euphoria, headache, and impaired judgment; supplemental oxygen is required above 12,500 feet MSL for more than 30 minutes and above 14,000 feet MSL continuously.

  • Spatial disorientation is common in low visibility; trust the instruments and avoid abrupt maneuvers without visual reference.

  • Alcohol: 8 hours bottle-to-throttle, blood alcohol below 0.04%, and no flying while under the influence.

  • Fatigue and stress degrade judgment and reaction time; the hazardous attitudes (anti-authority, impulsivity, invulnerability, macho, resignation) should be recognized and countered.

  • Crew resource management and passenger briefings improve safety; passengers should be briefed on emergency exits and sterile cockpit procedures.

Quick reference

Regulations and Airman Privileges

  • A private pilot gyroplane certificate requires a minimum of 40 hours total flight time, including at least 20 hours of gyroplane flight time.

  • Of the 20 gyroplane hours, a minimum of 15 hours must be dual instruction and 5 hours must be solo flight, including at least 3 solo takeoffs and landings.

  • A third-class medical certificate is required to exercise private pilot privileges; BasicMed may be used if the pilot meets its eligibility conditions.

  • Private pilots may not act as pilot in command for compensation or hire, but may share operating expenses with passengers under 14 CFR 61.113.

  • To carry passengers, a pilot must have logged at least 3 takeoffs and 3 landings within the preceding 90 days in the same category, class, and type (if type rating required).

  • A flight review (14 CFR 61.56) consisting of at least 1 hour ground and 1 hour flight training is required every 24 calendar months.

  • Pilot logbooks must be retained and made available on request; currency and recent flight experience records must be kept for the periods specified in 14 CFR 61.51.

Quick reference

Aerodynamics and Principles of Gyroplane Flight

  • A gyroplane's rotor is autorotative: it is driven by airflow upward through the disc, not by engine power, so loss of engine power does not stop rotor rotation.

  • Rotor thrust equals the vector sum of lift and drag; tilting the rotor disc rearward increases lift and drag, slowing airspeed.

  • Dissymmetry of lift is the difference in lift between advancing and retreating blades; blade flapping and cyclic feathering equalize lift across the disc.

  • Flap-back is the rearward tilt of the rotor disc that occurs with increasing airspeed; it reduces the angle between the disc and the relative wind.

  • A gyroplane cannot stall in the fixed-wing sense, but can enter a power pushover (bunt) if the rotor is unloaded by abrupt forward cyclic or negative G.

  • Rotor RPM is largely a function of airspeed and load; low airspeed and high load can reduce RPM, and rotor RPM decay leads to blade stall and loss of control.

  • Precession is the 90-degree lag between an applied force and the resulting blade displacement; cyclic inputs must lead the intended disc change by 90 degrees.

  • Ground effect reduces induced drag near the surface, allowing lower power settings and shorter takeoffs and landings.

Quick reference

Weight, Balance, and Performance

  • Maximum gross weight is the sum of empty weight, occupants, baggage, and fuel; exceeding it degrades climb, ceiling, and rotor performance.

  • Center of gravity limits are expressed as a range forward and aft of the datum; an aft CG reduces stability and increases power-pushover risk.

  • Weight and balance must be computed before each flight using current empty weight and arm data, not the aircraft's original factory figures.

  • Takeoff and landing distances increase with density altitude, gross weight, and tailwind; POH charts provide the only approved performance data.

  • Density altitude is pressure altitude corrected for nonstandard temperature; high density altitude reduces rotor and engine performance.

  • Use the POH performance charts for the specific gyroplane model; generic or fixed-wing charts are not valid substitutes.

  • Fuel planning must account for taxi, climb, cruise, descent, and a legal reserve of at least 30 minutes during day and 45 minutes at night.

Quick reference

Meteorology and Weather Services

  • METARs report current surface weather; TAFs forecast conditions within 5 statute miles of an airport and cover periods up to 24 or 30 hours.

  • Standard lapse rate is 2°C per 1,000 feet; the standard atmosphere at sea level is 15°C and 29.92 inHg.

  • Density altitude increases approximately 120 feet for each 1°C above standard temperature at a given elevation.

  • AIRMETs cover moderate hazards (Tango for turbulence, Sierra for IFR/mountain obscuration, Zulu for icing); SIGMETs cover severe or extreme hazards.

  • Wind shear and mountain wave activity can produce severe turbulence and downdrafts; gyroplanes are especially sensitive to low-level wind shear during takeoff and landing.

  • Convective activity should be avoided because thunderstorms contain embedded severe turbulence, hail, and microbursts that exceed gyroplane structural limits.

  • A ceiling is the lowest broken or overcast layer; visibility of 3 statute miles or more is generally required for VFR in Class G airspace during the day.

Quick reference

Navigation, Charts, and Flight Planning

  • Sectional charts use a scale of 1:500,000; 1 inch on the chart equals approximately 6.86 nautical miles.

  • True course is measured from the chart; true heading equals true course plus wind correction angle; magnetic heading equals true heading minus magnetic variation.

  • Compass heading equals magnetic heading adjusted for deviation, which is read from the compass correction card.

  • A nautical mile equals 1.15 statute miles; fuel consumption is typically planned in gallons per hour and converted to time en route.

  • Pilotage uses visual landmarks and dead reckoning uses computed time, heading, and speed; GPS should be cross-checked against them.

  • Class B airspace appears as solid blue lines, Class C as solid magenta, Class D as dashed blue, and Class E as dashed magenta on sectional charts.

  • Obstacles higher than 1,000 feet AGL are shown with MSL elevation; those lower may be omitted from sectional charts.

Quick reference

Airspace, ATC, and Radio Communications

  • Class A airspace begins at 18,000 feet MSL and requires an IFR clearance and Mode C transponder.

  • Class B airspace requires an explicit ATC clearance; Class C and D require two-way radio communication established before entry.

  • Class E airspace may be controlled without an operating control tower; Class G is uncontrolled and VFR minimums depend on altitude and time of day.

  • Transponder Mode C is required in Class A, B, and C airspace and above 10,000 feet MSL, and within the Mode C veil around Class B airports.

  • The phonetic alphabet uses Alfa, Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliett, Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu.

  • Emergency frequency is 121.5 MHz; the universal distress call is MAYDAY and the urgency call is PAN-PAN.

  • Squawk 7700 for emergencies, 7600 for radio failure, and 7500 for hijacking.

Quick reference

Airport Operations and Traffic Patterns

  • The standard traffic pattern is left-hand unless published otherwise; entry is normally at pattern altitude on the downwind leg at 45 degrees to the midpoint.

  • Pattern altitude is typically 1,000 feet AGL; gyroplane patterns may be lower where published and should be flown to match other traffic.

  • Runway markings: white edge lines, yellow centerline, threshold bars, and displaced thresholds indicate landing area restrictions.

  • Wind indicators include the windsock (approximate direction and speed), tetrahedron, and wind tee; the segmented circle shows pattern direction.

  • Right-of-way rules: aircraft in distress, then balloons, gliders, airships, aircraft towing, and powered aircraft in that order; converging aircraft give way to the one on the right.

  • A stabilized approach should be established by short final with target airspeed and descent rate; go-arounds are mandatory if the approach is unstable.

  • Wake turbulence is generated by heavy aircraft and is worst when the generating aircraft is heavy, slow, and clean; gyroplanes should land beyond the touchdown point and avoid the vortices.

Quick reference

Gyroplane Systems and Rotorcraft Maintenance

  • The rotor system includes blades, hub bar, teeter bolt, and control linkage; preflight inspection must check blade condition, bolt security, and control freedom.

  • Rotor blades are typically aluminum or composite; cracks, delamination, and leading-edge damage require removal from service.

  • The engine, propeller, and rotor are independent systems; propeller thrust provides forward speed while the rotor provides lift.

  • A prerotator spins the rotor before takeoff; rotor RPM must reach the manufacturer's minimum before brake release and takeoff roll.

  • Maintenance must follow the manufacturer's inspection program; annual inspections are required for aircraft used for compensation or hire, and condition inspections for experimental aircraft.

  • Fuel contamination checks, oil level, and coolant level are part of every preflight; the fuel selector must be set to a tank with adequate fuel.

  • Control rigging and rotor tachometer accuracy should be verified at each condition inspection; incorrect rigging can cause loss of control.

Quick reference

Emergency Procedures and Safety of Flight

  • In an engine failure, lower the collective or reduce power, maintain rotor RPM, and execute an autorotative descent to a suitable landing area.

  • Autorotation requires maintaining airspeed and rotor RPM; the flare at low altitude converts forward speed into rotor energy for a soft touchdown.

  • A power pushover (bunt) is countered by reducing forward cyclic and restoring positive G-loading; recovery requires prompt aft cyclic.

  • Rotor RPM decay is corrected by lowering the nose to increase airflow through the disc and reducing load.

  • Fire in flight: shut off fuel, execute a forced landing, and evacuate after landing; do not restart the engine.

  • Lost procedures: climb, conserve fuel, and use radio and navigation aids; declare an emergency with ATC if fuel becomes critical.

  • Emergency descent should be planned away from populated areas; use 121.5 MHz and squawk 7700 to alert ATC.

Quick reference

Human Factors and Aeronautical Decision Making

  • The IMSAFE checklist covers Illness, Medication, Stress, Alcohol, Fatigue, and Emotion before flight.

  • The DECIDE model: Detect, Estimate, Choose, Identify, Do, Evaluate - a structured decision-making process for in-flight problems.

  • Hypoxia symptoms include euphoria, headache, and impaired judgment; supplemental oxygen is required above 12,500 feet MSL for more than 30 minutes and above 14,000 feet MSL continuously.

  • Spatial disorientation is common in low visibility; trust the instruments and avoid abrupt maneuvers without visual reference.

  • Alcohol: 8 hours bottle-to-throttle, blood alcohol below 0.04%, and no flying while under the influence.

  • Fatigue and stress degrade judgment and reaction time; the hazardous attitudes (anti-authority, impulsivity, invulnerability, macho, resignation) should be recognized and countered.

  • Crew resource management and passenger briefings improve safety; passengers should be briefed on emergency exits and sterile cockpit procedures.