Physics Help Forum airplane engine

 Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

 Apr 25th 2018, 05:08 AM #1 Junior Member   Join Date: Apr 2018 Posts: 4 airplane engine If the right wing right engine suddenly fails.which of the two rudders and how must be moved so that airplane maintains its attitude and flies straight (assuming the plane is on air not landing) Attached Thumbnails
 Apr 25th 2018, 06:19 AM #2 Senior Member     Join Date: Jun 2016 Location: England Posts: 642 All of them! The loss of an engine will cause the thrust to be unbalanced so the plane will start to yaw (turn) toward the side with the dead engine. The Rudder will have to be moved to turn the aircraft in the opposite direction. However, because the Rudder is above the centre of the aircraft, moving the rudder will tend to make the aircraft roll. To counter this the ailerons will have to adjust (one up the other down) to counter the roll. All these changes will alter the lift of the aircraft, this will alter the "trim" angle of the aircraft (the balance point where the lift generated matches the weight) The elevators will have to move to bring the aircraft back to a balanced trim angle. __________________ ~\o/~
 Apr 25th 2018, 07:17 AM #3 Junior Member   Join Date: Apr 2018 Posts: 4 but at first u mention plane wil tend to turn towards dead engine.. should that not be the opposite of what u say
 Apr 25th 2018, 08:35 AM #4 Senior Member     Join Date: Jun 2016 Location: England Posts: 642 put a pencil on the desk push the pencil away from you, using one figure from each hand, with each finger a short way in from each end, (about where the engines would be if the pencil was the aircrafts wings). Remove one finger, which way does the pencil turn? The aeroplane will behave similarly. __________________ ~\o/~
 Apr 25th 2018, 09:07 AM #5 Junior Member   Join Date: Apr 2018 Posts: 4 oh yes, i thought the behaviour would be the sam as of a boat..thank you for explanation!
 May 1st 2018, 03:13 PM #6 Banned   Join Date: Apr 2018 Posts: 92 I flew across the pacific ocean in a prop plane that engine also blue up. I told the caption and he said he would power that side down and that this was the last flight for this plane. It was totally awesome besides that. I remember flying over midway and landing a this island eating cucumber sandwiches with the crust trim up and eating so much than throwing up but before that I was in Paridise. Flying in the sky with the right engine burning oil and emitting a flame. It was a Douglas C-47 Skytrain.

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