blade hinge

См. также в других словарях:

• blade damper A device — installed on the vertical (lead lag or drag) hinge to diminish or dampen blade oscillation or hunting around this hinge …   Aviation dictionary

• blade flapping — The vertical movement of a helicopter rotor blade about a horizontal or flapping hinge, in which the blades tend to rise and descend with respect to the rotor hub as they rotate. Blade flapping tends to minimize asymmetrical lift by increasing… …   Aviation dictionary

• blade grips — That part of a helicopter rotor hub into which the blades are attached by a lead lag hinge pin. Blade grips also called blade forks …   Aviation dictionary

• delta-three hinge — A hub hinge arrangement that is a coupling effect between either the flapping or lead lag hinge and a blade pitch. A blade has a delta three hinge if the movement of the blade in either axis causes the blade pitch to change. Pitch change rod… …   Aviation dictionary

• flapping hinge — A hinge connecting a rotor blade to the hub and about which the blade rises and falls (i.e., flaps during its rotation, and thus permits equalization of lift or rotor thrust) between the advancing blade half and the retreating blade half of the… …   Aviation dictionary

• alpha hinge — The hinge at the root of a helicopter rotor blade with its axis perpendicular to the plane of rotation. It allows the blade tip to move back and forth in its plane of rotation. Movement about the alpha hinge is called drag. Drag dampers oppose… …   Aviation dictionary

• lead-lag hinge — The hinge at the root of a helicopter rotor blade with its axis perpendicular to the plane of rotation. It allows the blade tip to move back and forth in its plane of rotation. Movement about the lead lag is called drag. Drag dampers oppose this… …   Aviation dictionary

• teetering hinge — A hinge connecting a rotor blade to the hub and about which the blade rises and falls (i.e., flaps during its rotation). This permits the equalization of lift (or rotor thrust) between the advancing blade half and the retreating blade half of the …   Aviation dictionary

• lag hinge — The hinges of a helicopter that permit movement as the blade drag varies during rotation. These are located approximately at the root of the helicopter main rotor blade. The same as a drag hinge …   Aviation dictionary

• drag hinge — The hinges of a helicopter that permit movement as the blade drag varies during rotation. These are located approximately at the root of the helicopter main rotor blade …   Aviation dictionary

• feathering hinge — A pivot of a rotorcraft blade that allows the blade angle to be varied …   Aviation dictionary