Can you extend the flaps prior to landing gear with the engine out?

The correct answer highlights that extending the flaps prior to landing gear with the engine out is not possible due to the lack of operation of the engine-driven hydraulic pump. In the T-6A, the flaps are operated by hydraulic pressure supplied primarily by the engine-driven hydraulic pump. When the engine is not running, this hydraulic pump cannot produce the required pressure to extend the flaps.

Therefore, without the hydraulic pressure necessary to operate the flaps, the pilot cannot safely extend them. This situation emphasizes the importance of engine power for the proper functioning of flight control systems, particularly during critical phases of flight such as landing. Consequently, even if there are circumstances where aerodynamic performance might seem beneficial, the mechanical limitations impose safety protocols that must be adhered to.

Understanding this relationship between engine operation and hydraulic systems is crucial for safe aircraft operation, especially in emergency situations.