August 2, 2014 - Elytron Aircraft is showcasing an unusual proposal for a crossover of fixed-wing and rotorcraft aircraft during EAA AirVenture Oshkosh 2014. The two-seat demonstrator, incorporating an all-carbon composite airframe, should be capable of STOL and VTOL operations—depending on loaded weight—and even hovering like a helicopter.
The Elytron design combines three sets of wings: one pair of rotary wings called “prop-rotors,” attached to a single tilt-wing mounted in a central-fuselage position, and two pairs of fixed wings. The fixed wings are split into a forward pair and an aft pair, and are joined by winglets, making use of the joined-wing concept. By splitting the wings apart, the design eliminates interference with the prop-rotors’ thrust.
According to the company, the airplane will have a high glide ratio and low stall speed, together with excellent short takeoff and landing (STOL) capabilities. The prop-rotors and their wing can rotate 100 degrees and mounts four control surfaces. Elytron Aircraft says similar configurations will be capable of achieving airspeeds two to three times those of equivalently powered helicopters.
The demonstrator currently lacks a powerplant, but the company said it soon will be powered by a 450-hp turbocharged race engine, and flight testing will start in 2015.
Elytron Aircraft’s exhibit is in the Innovation Center. Learn more about the company at its website, Elytron.aero.