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A typical helicopter has three flight control inputs: the cyclic stick, the collective lever, and the anti-torque pedals. [2] Depending on the complexity of the helicopter, the cyclic and collective may be linked together by a mixing unit , a mechanical or hydraulic device that combines the inputs from both and then sends along the "mixed ...
Loss of tail-rotor effectiveness (LTE) [1] occurs when the tail rotor of a helicopter is exposed to wind forces that prevent it from carrying out its function—that of cancelling the torque of the engine and transmission. Any low-airspeed high-power environment provides an opportunity for it to occur.
Torque effect is an effect experienced in helicopters and single propeller-powered aircraft is an example of Isaac Newton's third law of motion, that "for every action, there is an equal and opposite reaction." In helicopters, the torque effect causes the main rotor to turn the
The tail rotor pushes or pulls against the tail to counter the torque effect, and this has become the most common configuration for helicopter design, usually at the end of a tail boom. [citation needed] Some helicopters use other anti-torque controls instead of the tail rotor, such as the ducted fan (called Fenestron or FANTAIL) and NOTAR.
Another way to eliminate the effect of torque created by the rotorwing is by mounting the engine on the tips of the rotorwing rather than inside the helicopter itself; this is called a tip jet. One example of a helicopter using such a system is the NHI H-3 Kolibrie , which had a ramjet on each of the two wingtips, and an auxiliary power unit to ...
[18] [26] [34] Chmagh was killed [18] [26] [34] along with three other men, while two children, not known to be in the van to the U.S. forces, were injured. [41] The children, a girl and boy, suffered injuries. The girl suffered from a stomach wound and glass in her eyes, and the boy a head injury.
Of the 14 helicopter mishaps, 12 occurred during training flights. 2024 "will be a year that Army Aviation looks back on in hopes of never repeating," this month's issue of Flightfax, an Army ...
The Yakovlevian torque in the cerebrum (exaggerated). Redrawn from Toga & Thompson (2003). [1]Yakovlevian torque (also known as occipital bending (OB) [2] or counterclockwise brain torque [3]) is the tendency of the right side of the human brain to be warped slightly forward relative to the left and the left side of the human brain to be warped slightly backward relative to the right.