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Ducted fan tail rotors have also been used in the Russian Kamov Ka-60 medium-lift helicopter, [17] and also on the Japanese military's Kawasaki OH-1 Ninja reconnaissance rotorcraft. French light helicopter manufacturer Hélicoptères Guimbal has also used a Fenestron for their Guimbal Cabri G2, a compact reciprocating engine-powered rotorcraft ...
The A.104 was a slightly enlarged version of the A.103, and added a second seat beside the pilot's seat. The cockpit was enclosed by a perspex bubble with the engine at the rear and the tail rotor carried on an enclosed boom. Two piston-engined prototypes were built, followed by a single example of a turbine-engined variant designated A.104BT ...
The MH-1 features a single main rotor with a two-bladed tail rotor, a single-seat enclosed cockpit with a windshield and skid-type landing gear. Its 19 ft (5.8 m) diameter two-bladed rotor has a chord of 8 in (20.3 cm).
The EC130 is a single-engine helicopter. It uses a three-bladed Starflex main rotor which is matched to an enclosed tail fan anti-torque device, known as a Fenestron, the latter feature replacing the traditional tail rotor found on the older AS350. The Fenestron has unevenly spaced blades to reduce noise generation by 50% compared to a ...
A floor-mounted, foot-activated push-to-talk switch facilitates intercom communications for the left-seat occupant, although some later models may be equipped with a voice-activated intercom system. The helicopter rotor system consists of a two-bladed main rotor and two-bladed antitorque rotor on the tail, each equipped with a teetering hinge ...
Tandem-rotor helicopters, however, use counter-rotating rotors, with each cancelling out the other's torque. Therefore, all of the power from the engines can be used for lift, whereas a single-rotor helicopter uses some of the engine power to counter the torque. [1] An alternative is to mount two rotors in a coaxial configuration.
Small baggage can be stored in under seat lockers. [2] Cabin access is through forward hinged doors in each side. [1] A 84.5 kW (113 hp) Rotax 914 turbocharged, liquid cooled, flat four piston engine with narrow rectangular cheek radiators is mounted behind the seats and partly exposed at the rear, driving a two blade main rotor.
The rotor head incorporates elastomeric bearings for hub springs, and flapping and pitch change bearings. The system is similar in design to that used by the AH-1 Cobra. Rotor speed at 100% engine speed is 348 RPM. All series models incorporate a pusher-type two-bladed tail rotor mounted on the left side of the tailboom, turning at 3396 RPM.