Recirculation will not always happen but will be aggravated by the type of ground or nearby obstacles causing the air which is trying to escape out to the sides of the helicopter to be directed back up toward the rotor system. Recommended by user Gregory Waugh. Disc The circular area swept by the rotor in one complete revolution. Joint Operation Planning — All type of planning involving joint military forces in regards to military operations including, but not limited to, mobilization, deployment, and sustainment. Bolo — A derogatory remark for recruits who cannot pass marksmanship training.
It also refers to the brightly colored layouts and symbols usually included. Can be used respectfully or perjoratively. Counter-rotating main rotors and no tail rotor which allows all engine power to go directly to the main rotors for the highest lifting efficiency of any rotor configuration. Downwash The downward rush of air produced by the powered rotor. Fourth Point of Contact — From rolling after a successful parachute drop: The control for changing the pitch of each rotor blade individually as it rotates through one cycle to govern the tilt of the rotor disc and. A disc either fixed or rotating on the main rotor drive shaft, which is tilted in various directions by the pilot's control inputs. So called due to a fallacious belief that the Coast Guard never operates in deep water. Navy term for a hospital corpsman. Bolo — A derogatory remark for recruits who cannot pass marksmanship training. Blade The complete wood, metal or composite structure of an airfoil. It is a circle with its center at the hub and has a radius of one blade length. The phrase is derived from the same anthropmorphizing many apply to GPS units in cars, only Bitchin' Betty's alert pilots to life-threatening situations. Hover out of ground effect relates to the helicopters ability to hover at a certain altitude where there are no hard surfaces for the downwash to react against. Chord The width of the rotor blade measured from the lead edge to the trailing edge. Amplitude often refers to the maximum deviation of an oscillation. Feedback The transmittal of forces, which are initiated by aerodynamic action on rotor blades, to the cockpit controls. Fangs — A Marine Corps term for one's teeth. The idea being that if one cannot use a rifle, one most resort to a bolo. Lift An upward force created as the rotation of the rotor blades overcomes the pull of gravity. It consists of a magnetic plug located within the transmission. Drag and flappin hinges help relieve stresses and imbalances brought about by this force. Da Vinci was an architect, musician, anatomist, inventor, engineer, sculptor, geometer, painter, and a homosexual. A heavier-than-air aircraft as an airplane, helicopter, or glider —From http: It is opposite centrifugal force.
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