Auxiliary power system for rotorcraft with folding propeller arms and crumple zone loading gear

A non-fixed wing rotary aircraft comprising:

• a fuselage;
• a cockpit sized and adapted to accommodate a human pilot of the non-fixed wing rotary aircraft and having a pilot seat for the human pilot and a cockpit door for access to the cockpit by the human pilot;
• a plurality of at least four rotor arms, each rotor arm having a distal end and a proximal end, the proximal end of each of the plurality of rotor arms being mounted to the fuselage;
• a plurality of at least eight rotors, each of the plurality of rotor arms having two of the plurality of rotors mounted to the distal end thereof, each rotor contributing to both lift and thrust to the aircraft;
• wherein a first set of the plurality of rotors rotate in an opposite direction of a second set of the plurality of rotors;
• wherein an axis of rotation of each of the rotors of the first set of the plurality of rotors is coincident with an axis of rotation of one of the rotors of the second set of the plurality of rotors;
• a plurality of at least eight electric motors each coupled to one of the plurality of rotors;
• a plurality of batteries each electrically coupled to one of the plurality of electric motors, the plurality of batteries configured to power the plurality of at least eight electric motors during normal flight operation of the aircraft;
• an inverter coupled to the plurality of batteries;
• a converter coupled to the inverter;
• a generator coupled to the converter;
• an internal combustion engine coupled to the generator to generate electrical energy to charge the plurality of batteries and thereby power the plurality of motors to rotate the plurality of rotors.