Mobula is a Tilt Aircraft design, similar to the Tail Sitters.
It takes-off in vertical position and after a transition in the air, tilting all the aircraft, it is able to fly horizontally taking advantage of the lift of the wing.
It has 5 motors: 4 for hovering and 1 for horizontal flight. To reduce the drag during horizontal flight, it has folding propellers in the hovering motors.
The major components of the aircraft that contain equipments and cargo bay are waterproof: high structural integration, access panels are sealed and interfaces (electrical and mechanical) with other aircraft components are isolated. Areas without this requirement will be manufactured with draining holes.
Mobula has a landing gear for VTOL. The rear part of the engine pods is designed to support the aircraft on the ground. As traditional landing is not required, no provisions for such a device are included in the design.
Mobula has a parachute to get a safe landing in case of failure. In addition, It could continue the mission after a horizontal flight motor failure using hovering motors.
The aircraft is split in 6 Major Components: two wings, fuselage and four pods for hovering motors.
Any part is bigger than 2 meters, so it can be easily handled, assembled and transported by 2 persons.
A very simple box will host the payload and the batteries. Four guide bars are defined in each corner of the box, and an actuator will move the box in and out of the fuselage.
Manufacturing techniques and materials for the different parts of the aircraft are:
- Wings: Skins with integrated spars made of low cost carbon fiber reinforced plastic (CFRP). Intermediate CFRP Ribs and machined ribs made of low density aluminum alloy (Al-Li).
- Fuselage: Low cost CFRP skins with integrated stringers and shear ties for CFRP/Metallic frames attachment.
- Engine Pods: CFRP skins and metallic substructure. Engine pods in Selective Laser Melting (SLM) Additive Manufacturing.