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The CoAX 2D/2R was originally known as the FLIP 2 (Fly In Perfection) and is a derivative of the FLIP 1, a conventional helicopter with a main and tail rotor.[1]The CoAX 2D/2R was designed to comply with the European Class 6 microlight helicopter rules, including the category's maximum takeoff weight of 450 kg (992 lb).
The aircraft fuselage is made from composites and is a faired teardrop shape to ensure smooth airflow over the variable pitch pusher propeller. Its 8.4 m (27.6 ft) diameter rotor has a chord of 20 cm (7.9 in). The aircraft has an empty weight of 265 kg (584 lb) and a gross weight of 450 kg (990 lb), giving a useful load of 185 kg (408 lb).
The VA115 features dual, coaxial main rotors with NACA 23012 airfoils, a single-seat open cockpit without a windshield, tricycle landing gear and a two-cylinder, air-cooled, two stroke, fuel-injected 50 hp (37 kW) Hirth F23 engine. [1] The aircraft fuselage is made from metal tubing, with a small cockpit fairing. Its dual two-bladed rotors each ...
The aircraft has a standard empty weight of 234 lb (106 kg). It features a single main rotor and tail rotor, a single-seat, open cockpit without a windshield, skid landing gear with ground handling wheels. [1] The rotor is driven by tip jets fueled by hydrogen peroxide, which emits only water vapour and oxygen as exhaust products. The tail ...
The aircraft was designed long before the adoption of the US FAR 103 Ultralight Vehicles rules, including the category's maximum empty weight of 254 lb (115 kg), but nonetheless complies with them. The aircraft has a standard empty weight of 150 lb (68 kg) and is billed as the "World's Tiniest Homebuilt Helicopter" by the plans supplier.
The Hiller ROE Rotorcycle is a single-seat ultralight helicopter designed in 1953 for a military requirement. [1] A total of 12 were produced for the United States Marine Corps. And in 1954, the Hiller Helicopters was selected by the US Navy's Bureau of Aeronautics to build this design of a one-man, foldable, self-rescue and observation ...
The aircraft features a carriage built on a welded stainless steel frame, with a fiberglass composite streamlined fairing, dual-controls, a two-seats-in-tandem, open cockpit, tricycle landing gear with wheel pants and a single engine in pusher configuration. The rotor is of aluminum alloy and includes a pneumatic pre-rotator. [1] [2]
The cyclic control is roof-mounted, hanging down into the cockpit, but is otherwise conventional. The 23 in (58.4 cm) diameter tail rotor features a shrouded tail rotor and a tailplane with end-fins. [1] [4] When it was available, the aircraft could be purchased as a 150-hour assembly kit or as a 60-hour quick-build kit. No plans were available ...