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- Translational_lift abstract "Translational lift (also known as Effective Translational Lift, or ETL) is a transitional state present after a helicopter has moved from hover to forward flight. This state provides extra lift, most typically, when the airspeed reaches approximately 16-24 knots, but is present with any horizontal flow of air across the rotor, and therefore can be present without any forward motion of the aircraft, given prevailing wind conditions. As a result, the tail rotor also becomes more efficient due to the wind bubble that is formed around the helicopter from progressively less turbulent air.The most common example of the effect is this: a helicopter might be slightly overloaded for take off so that it cannot hover. Liftoff can still be achieved if the helicopter has enough of a straight runway to make a \"running take off\" where the pilot will slowly accelerate the helicopter across the ground until translational lift speed is achieved, extra rotor-disc lift is produced, and the aircraft will begin to climb.In Robert Mason’s book, Chickenhawk, Mason describes a situation where an aircraft, loaded with 2500 pounds of high explosives, was above gross weight and should have been unable to achieve flight, was actually \"coaxed\" into flight via the \"Running Take Off\".".
- Translational_lift wikiPageID "5572541".
- Translational_lift wikiPageLength "1788".
- Translational_lift wikiPageOutDegree "9".
- Translational_lift wikiPageRevisionID "618851563".
- Translational_lift wikiPageWikiLink Category:Helicopter_aerodynamics.
- Translational_lift wikiPageWikiLink Chickenhawk_(book).
- Translational_lift wikiPageWikiLink Helicopter.
- Translational_lift wikiPageWikiLink Helicopter_flight_controls.
- Translational_lift wikiPageWikiLink Knot_(unit).
- Translational_lift wikiPageWikiLink Lift_(force).
- Translational_lift wikiPageWikiLink Vortex_ring.
- Translational_lift wikiPageWikiLink Vortex_ring_state.
- Translational_lift wikiPageWikiLinkText "Translational lift".
- Translational_lift wikiPageWikiLinkText "translational lift".
- Translational_lift wikiPageUsesTemplate Template:Aviation-stub.
- Translational_lift wikiPageUsesTemplate Template:Reflist.
- Translational_lift subject Category:Helicopter_aerodynamics.
- Translational_lift hypernym State.
- Translational_lift type PopulatedPlace.
- Translational_lift comment "Translational lift (also known as Effective Translational Lift, or ETL) is a transitional state present after a helicopter has moved from hover to forward flight. This state provides extra lift, most typically, when the airspeed reaches approximately 16-24 knots, but is present with any horizontal flow of air across the rotor, and therefore can be present without any forward motion of the aircraft, given prevailing wind conditions.".
- Translational_lift label "Translational lift".
- Translational_lift sameAs Q7834543.
- Translational_lift sameAs m.0dt59r.
- Translational_lift sameAs Q7834543.
- Translational_lift wasDerivedFrom Translational_lift?oldid=618851563.
- Translational_lift isPrimaryTopicOf Translational_lift.