When we laid eyes on the Elytron 2S tiltrotor plane prototype last year at the Experimental Aircraft Association’s fly-in airshow in Oshkosh, Wisconsin, it was a half-built concept with only part of its Prandtl wing box installed. The company has now completed the airframe ahead of planned flight tests later this year.The Elytron 2S two-seater demonstrator was on display at the Hai-Helo Expo in Orlando, Florida. With a 28-ft (8.5-m) wingspan, the tiltrotor aircraft combines features of fixed-wing and rotorcraft and is capable of conventional takeoff and landing, along with vertical and short takeoff and landing capabilities. According to Elytron Aircraft, all the carbon composite work has been completed on the fuselage, the center wing, the tilting mechanism and vertical flight controls have been installed, as have the taxiing system, avionics, and engine. The company says that the current design is close to achieving its weight goal of 1,100 lb (500 kg) and will execute a vertical takeoff and landing test by the end of 2015. In addition, the company has unveiled concept renderings for its four and 10-passenger production airplanes for executive and air taxi markets. ( By David Szondy from Gizmag.com ) For more information follow the link below.