Aircraft LSA Inspection Gyroplane Exam

FAA Repairman Certificate – Light-Sport Aircraft (LSA) Inspection – Gyroplane Exam Practice Test Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary source of lift for a gyroplane?
• Propeller thrust
• Unpowered rotor blades
• Fixed wings
• Engine exhaust gases

Rationale: In a gyroplane, lift is generated by unpowered rotor

blades that autorotate due to the aircraft's forward motion.

• What term describes the rotation of the rotor blades caused by air

moving upward through the rotor system?

• Propulsion
• Autorotation
• Induced drag 1 / 4

• Gyroscopic precession

Rationale: Autorotation occurs when upward airflow through the

rotor system causes the blades to spin freely, generating lift.

• Which component provides forward thrust in a gyroplane?
• The propeller
• The rotor system
• The tail fin
• The cyclic pitch control

Rationale: In a gyroplane, an engine-driven propeller provides

forward thrust, while the rotor provides lift.

4. During autorotation, the rotor blades are driven by:

• The engine
• The cyclic control
• The upward flow of air through the rotor disc
• The rudder

Rationale: Autorotation occurs because the air moving upward

through the rotor disc drives the rotor blades.

• Which type of airframe is most commonly used in light-sport

gyroplanes?

• Wooden
• Steel monocoque
• Tubular aluminum or steel frame
• Composite sandwich shell 2 / 4

Rationale: Most LSA gyroplanes use lightweight tubular metal

frames for strength and simplicity.

6. The thrust line in a gyroplane should ideally:

• Pass below the center of gravity
• Pass above the center of gravity
• Pass close to the center of gravity
• Be perpendicular to the center of gravity

Rationale: A thrust line near the center of gravity ensures stability

and reduces pitch oscillations.

• What is the function of the pre-rotator in a gyroplane?
• Provides lift during flight
• Spins up the rotor before takeoff
• Controls yaw
• Acts as a brake for the rotor

Rationale: The pre-rotator is used to bring the rotor blades up to

speed before takeoff to shorten takeoff distance.

• What happens if the engine fails in a gyroplane during flight?
• The aircraft stalls
• The rotor stops spinning
• The aircraft continues to autorotate and can glide safely
• The propeller provides lift

Rationale: Gyroplanes can glide safely in autorotation even if the

engine fails, as the rotor continues spinning. 3 / 4

9. The cyclic control in a gyroplane changes:

• Engine power
• The pitch angle of the rotor blades cyclically
• The tail rudder position
• The propeller thrust

Rationale: The cyclic control tilts the rotor disc by changing blade

pitch cyclically, controlling direction.

10. The rudder in a gyroplane is primarily used to:

• Change altitude
• Control yaw
• Control roll
• Adjust lift

Rationale: The rudder controls yaw, or left-right movement, by

changing airflow over the vertical stabilizer.

• What determines the rotor blade’s lift at a given airspeed?
• Propeller RPM
• Angle of attack and airspeed
• Rotor hub angle
• Weight of the gyroplane

Rationale: Lift depends on airspeed and the rotor blade’s angle of

attack.

• / 4