Short take off and land aircraft

A short take-off and landing (STOL) aircraft, comprising:

• a primary engine for forward thrust;
• an enhanced flap assembly in each wing of the fixed wing aircraft, each flap assembly having a first and a second flap portion rotationally connected, extendable and retractable from an edge of a wing of the aircraft, the flap assemblies increasing and decreasing surface area and altering shape of the wings, each flap assembly further having a compartment within a thickness of the first flap portion, enclosing a rechargeable battery, a motor controller and an electric motor, and a vertically-oriented slot in the first flap portion, the slot having a length substantially greater than a thickness of the first flap portion, with a propeller operable in the slot on a shaft from the electric motor through a sidewall of the slot, such that the propeller in operation extends both over and under the thickness of the flap portion;
• an enhanced aileron system having a first aileron implemented at an outboard end of a first wing of the aircraft, and a second aileron implemented at an outboard end of a second wing of the aircraft, a second compartment in each wing enclosing a second rechargeable battery, a second motor controller and a second electric motor, a vertically oriented second slot in each wing having a length in the direction of a length of the wing, the second slot opening through a thickness of the wing, and proximate the aileron, a propeller rotatable in each wing on a shaft from the second electric motor through a sidewall of the second slot;
• and
• a digital control system comprising a processor tracking airspeed and attitude of the aircraft through sensors, and executing coded instructions, the control system managing starting and stopping propellers in all the slots in the enhanced flap assembly and the enhanced aileron system according to at least airspeed.