Set parking brake. Adjust seat and rudders for height and length. Ensure that landing gear handle is in the DOWN position. Unlock controls and check for freedom of movement.
Control lock is located at the base and just forward of the stick.
Pull plunger on left side of the lock to unlock controls. Fasten safety belt and shoulder straps. Set altimeter to correct barometric pressure. Oil and coolant shutters to full OPEN as soon as battery cart is plugged in. Release hydraulic pressure with wing flaps and flap handle to UP position.