High Performance Endorsement

Phase 1: Ground Theory & Engine Systems

• High-Performance Definition: Understanding the regulatory definition of an airplane with an engine of more than 200 horsepower.

• Powerplant Mechanics: In-depth review of fuel systems, and cooling management.

• Constant-Speed Propellers: Understanding the relationship between manifold pressure and RPM, and the function of the propeller governor.

• Operating Limitations: Reviewing the Pilot’s Operating Handbook (POH) for specific airspeed limits, engine temperatures (CHT/EGT), and fuel flow.

• Fuel Systems: Managing complex fuel systems, including electric boost pumps and high-volume fuel flows required for high-horsepower engines.

Phase 2: Preflight & Ground Operations

• Weight and Balance: Analyzing the effects of larger engines and increased fuel/payload capacity on the center of gravity.

• Engine Starting: Specific procedures for high-performance engines, including hot starts and cold starts for fuel-injected systems.

• Taxi and Braking: Managing increased weight and inertia during ground operations and the use of proper cooling techniques during long taxis.

• Run-up Procedures: Detailed propeller governing checks and verifying manifold pressure/RPM response.

Phase 3: Flight Proficiency & Maneuvers

• Takeoff and Climb: Managing significant left-turning tendencies (P-factor and torque) during high-power applications.

• Power Transitions: Mastering smooth coordination between the throttle and propeller control during climb, cruise, and descent.

• High-Speed Cruise: Monitoring engine instruments to prevent over-temping or over-boosting during level flight.

• Descent Management: Planning descents to avoid "shock cooling" the engine and managing higher airspeeds in the traffic pattern.

• Slow Flight and Stalls: Understanding the increased pitch forces and rapid roll rates inherent in higher-performance airframes.

Phase 4: Takeoffs, Landings, and Emergencies

• Normal and Crosswind Operations: Adjusting for higher approach speeds and the increased momentum of the aircraft during the flare.

• Maximum Performance Takeoffs: Executing short-field and soft-field takeoffs using full available horsepower while maintaining directional control.

• Go-Arounds: Managing the rapid pitch-up moment and high torque effects when applying full power at low airspeeds.

• Emergency Procedures: Handling engine failures, propeller governor malfunctions, and emergency descents from higher altitudes.

Recommended References

• 14 CFR § 61.31(f): Federal requirements for the High-Performance Endorsement.

• FAA Airplane Flying Handbook (FAA-H-8083-3C): Chapter 12, "Transition to Complex and High-Performance Airplanes."

• FAA Pilot’s Handbook of Aeronautical Knowledge (FAA-H-8083-25B): Chapter 7, "Aircraft Systems."