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This three-engined helicopter has a single large main rotor and smaller tail rotor. On a helicopter, the main rotor or rotor system is the combination of several rotary wings (rotor blades) with a control system, that generates the aerodynamic lift force that supports the weight of the helicopter, and the thrust that counteracts aerodynamic ...
When a helicopter is being maneuvered, its disk loading changes. The higher the loading, the more power needed to maintain rotor speed. [3] A low disk loading is a direct indicator of high lift thrust efficiency. [4] Increasing the weight of a helicopter increases disk loading. For a given weight, a helicopter with shorter rotors will have ...
(a) Before further flight, remove main rotor blade spindles P/Ns S6110-23325-1, S6110-23325-2, and S6112-23025-1 that either have been "salvaged" in accordance with procedures set forth in paragraph entitled "Salvage of Spindle" contained in Sikorsky Aircraft Overhaul Manual for the pertinent helicopter model, or have accumulated 3000 or more ...
The Safari is a two-seat light helicopter with a bubble canopy, a two-bladed main rotor and a skid landing gear. The aircraft structure consists predominantly of welded 4130 chromoly steel tubing. The kit provides the main and tail rotors, rotor hubs, transmission, engine, cockpit and tailboom completed. Builder construction is largely assembly ...
The AS350 is a single engine helicopter, powered either by a Lycoming LTS101 or Turbomeca Arriel powerplant (for twin-engined variants, see Eurocopter AS355), that drives a three-blade main rotor, which is furnished with a Starflex rotor head.
Coning is a phenomenon which affects helicopter rotor discs, where the blades describe a cone shape as they rotate. For a helicopter on the ground, as the blades rotate, they describe a horizontal disc due to centrifugal force. However, as the helicopter generates lift, the blades are pulled upwards into a cone shape. [1] [2] [3]
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 frame is made from welded stainless steel tubing. Its two-bladed rotor has a diameter of 7.14 m (23.4 ft) and a chord of 18.5 cm (7.3 in). With the Rotax 914 engine the aircraft has a typical empty weight of 290 kg (639 lb) and a gross weight of 600 kg (1,323 lb), giving a useful load of 310 kg (683 lb).