The DA-40 engine uses which power-delivery method?

The DA-40 engine uses which power-delivery method?

• A. Turbocharged
• B. Direct Drive
• C. Variable Drive
• D. Belt Drive

Answer: (B)

Direct drive means the propeller is connected straight to the engine’s crankshaft with no reduction gear or belt between them. In the DA-40’s setup, power moves from the engine to the propeller directly, so the propeller rotates at roughly the same speed as the engine. This keeps the drivetrain simple and light, and a propeller governor still controls blade pitch to maintain the desired RPM. The other options describe ways power could reach the propeller or alter intake (turbocharging) or involve belts or variable gearing, which aren’t how the DA-40’s propulsion system is configured.

Direct drive means the propeller is connected straight to the engine’s crankshaft with no reduction gear or belt between them. In the DA-40’s setup, power moves from the engine to the propeller directly, so the propeller rotates at roughly the same speed as the engine. This keeps the drivetrain simple and light, and a propeller governor still controls blade pitch to maintain the desired RPM. The other options describe ways power could reach the propeller or alter intake (turbocharging) or involve belts or variable gearing, which aren’t how the DA-40’s propulsion system is configured.