Aces High Bulletin Board
General Forums => Aircraft and Vehicles => Topic started by: earl1937 on June 21, 2014, 04:07:37 PM
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:airplane: Most all of us in this game who are pilots in real life,(I am a has-been now), are familiar with aerobatics and etc. I would be interested in seeing comments on the knife edge maneuver and how the aircraft is capable of doing this!
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We have insufficient lift and thrust to maintain level flight in a knife edge attitude so we build sufficient speed first to zoom through the maneuver.
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Lift for the knife edge is provided mostly by the propeller which is basically a rotary wing creating lift that we call thrust. The fuselage also contributes to lift. The ailerons provide roll control, the elevator is the yaw control and the rudder is the pitch control.
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Even the F-16 loses altitude during a knife edge pass. https://www.youtube.com/watch?v=rHm9ZDPRRQw
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Rapid rudder aplication into the knife edge can make your ears hurt
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Why? Because your head hits the canopy?
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Why? Because your head hits the canopy?
Technically speaking, the canopy hits your head.
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Technically speaking, the canopy hits your head.
Terrific. Another collision argument. :lol
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Even the F-16 loses altitude during a knife edge pass. https://www.youtube.com/watch?v=rHm9ZDPRRQw
:airplane: Because the F=16 does not have enough rudder to maintain its altitude and the shape of the fuselage is designed for "normal" flight ops, not a knife edge. If you will observe, many of the aircraft which are designed for aerobatics completion has a large rudder and the fuselage is designed to produce some amount of lift. Example, the 4 and 8 point rolls is another maneuver which would require a certain amount of lift from the fuselage to successfully complete those maneuvers during a aerobatic meet. As someone pointed out in these replies, the prop also plays an important part in the knife edge and again, is designed with the attitude that it, the prop, will have all different angles of attack during aerobatics. One aircraft comes to mind, the Zlin250lx I think is the name.
(http://i1120.photobucket.com/albums/l488/05263739/Zlin_Z-50M_OK-TRM.jpg)
While I am not an engineer, I would think the mission profile for a aircraft design would have a great deal of influence on the prop designers as related to obtaining maximum efficiencies from the prop. Put another way, don't think a prop designed for a bomber, would work very well on a aerobatic aircraft design.
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I hope you enjoy this Earl. :D
http://youtu.be/4dYLXgdBnpU
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I hope you enjoy this Earl. :D
http://youtu.be/4dYLXgdBnpU
:airplane: Very NICE! A Lumsvolk on takeoff? with flaps down to!!!! Anyway, great video and one of the advertising things which I wish we could do for AH is a 3 ship formation fly byes, with several different models in the game.
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Awesome 109F4 flying!
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Thanks, I'm glad you enjoyed it.