US Patent 10081422 Multicopter with wide span rotor configuration and protective fuselage

An aircraft includes a fuselage which includes an unenclosed cockpit, a left arm where the proximal end is attached to the fuselage, a right arm where the proximal end is attached to the fuselage, a left float which is attached to the left arm between the proximal and distal ends, a right float which is attached to the right arm between the proximal and distal ends, and a plurality of rotors which includes a left inner rotor that is attached at a fixed angle to a top surface of the left float, a right inner rotor that is attached at a fixed angle to a top surface of the right float, a left outer rotor that is attached at a fixed angle to a top surface of the distal end of the left arm, and a right outer rotor that is attached at a fixed angle to a top surface of the distal end of the right arm.