FlyingGiants - View Single Post

Dan Baker · 09-13-2009, 11:05 AM

Most trimming charts say what to do, but they do not say WHY we do it that way. Let's take one example of using rudder to trim for thrust changes that are needed. If you need right thrust and decide to put in right rudder trim instead, then the right rudder trim is there ALL the time. Your plane will always be wanting to yaw to the right in all flight attitudes, at all throttle settings. Even at idle on landing approach your plane will want to yaw away from the center line. It's best to trim thrust with thrust changes. Most all thrust habits are involving 3/4 to full power. So your thrust changes only affect the plane when the power is up, just what we want.

Hope this helps,
Dan Baker

09-13-2009, 11:05 AM	#4
Dan Baker Super Contributer Join Date: Sep 2009 Posts: 100	Re: rudder or engine thrust Most trimming charts say what to do, but they do not say WHY we do it that way. Let's take one example of using rudder to trim for thrust changes that are needed. If you need right thrust and decide to put in right rudder trim instead, then the right rudder trim is there ALL the time. Your plane will always be wanting to yaw to the right in all flight attitudes, at all throttle settings. Even at idle on landing approach your plane will want to yaw away from the center line. It's best to trim thrust with thrust changes. Most all thrust habits are involving 3/4 to full power. So your thrust changes only affect the plane when the power is up, just what we want. Hope this helps, Dan Baker