The Pratt-Whitney is a popular engine for maintenance training. Its operation is simple and easy to explain. The engine utilizes two independent turbines, one driving a compressor in the gas generator section, the second driving reduction gearing for the propeller. Model cutaway mounted on a roll-around stand. The machined cutaway shows the internal stages of the engine.
- Engine cutaway mounted on a stand with casters
- The cutaway provides a clear view of the:
- Turbine section
- Compressor Section
- Combustion section
- Engine Ratings: The engine ratings and power lever and propeller lever settings are as follows:
- Take-off: This rating is the maximum power permissible and corresponds to at sea level up to 21 degrees C ambient temperature. The maximum allowable output torque must not be exceeded.
- Maximum Continuous: This rating corresponds to up to 21 degrees C ambient temperature, sea level, static conditions. It is intended for emergency use only.
- Maximum Climb: This rating corresponds to at sea level, standard day and is the maximum power approval for normal climb.
- Maximum Cruise: This is the maximum approved power for cruising and is 495 SHP at sea level, standard day.