Patent ID: 11905010
Assignee: nan
Field: Transport (Mechanical engineering)
Classification: CPC B  G  Y | IPC B

Claim 9:
10. A method to maintain operation of an aircraft having a pilot compartment and an engine within a safe flight envelope, comprising: monitoring sensors sensing at least altitude, airspeed, power level, and aircraft attitude by a CPU coupled to a data repository, to the sensors and to actuators adapted to control apparatus adapted to control flight attitude and direction to change the flight attitude and direction and to vary power at the engine, the apparatus including at least a first slot having a length and a width through the first fixed wing and a second slot having a length and a width through the second fixed wing, a first reversible electric motor implemented in the first fixed wing driving a first two-blade propeller in the first slot, and a second reversible electric motor implemented in the second fixed wing driving a second two-blade propeller in the second slot and constraining the two-blade propeller in each slot is adapted to be constrained wholly within the slot when not being driven by the associated electric motor;
determining whether flight status is outside a safe flight envelope by comparison of real time sensed values to stored safe flight envelope data and conditions in the data repository defining flight conditions at boundaries of safe and unsafe operation;
if so, driving appropriate actuators to manipulate the apparatus adapted to control flight attitude and direction and/or the controller adapted to vary power of the engine including at least the first and second electric motors driving the first and second two-blade propellers in a programmed manner until the flight status is within the safe flight envelope.