Allan Stern
Well Known Member
To pitch the nose down with the trim tab, which way should the tab go, up or down. Have changed wires and did not look at tab direction before I pulled them.
Thanks
Allan Stern
Thanks
Allan Stern
I wired my aileron trim tab so when I push the HAT switch to the left, the trailing edge of the tab goes down, it is supposed to add ''lift'' so to speak, raising the trailing edge of the aileron and thereby lowering that wing?? So for ailerons, trim tab trailing edge pointing down equals down wing, and on elevator, lowering the trim tab trailing edge equals nose up? . Which half am I in???
Interesting you should bring this up. Believe it or not approximately 1/2 of the aircraft I inspect for airworthiness have the pitch trim backwards. As a matter of fact, the last one I did had this problem.
Reason it out. If the tab goes up, it will push the elevator down, thereby pushing the nose down. Conversely, if the tab goes down, it will push the elevator up, thereby pushing the nose up.
I am used to seeing the trim tab move in the opposite direction of the elevator when you raise and lower the elevator (unless the trim tab is in its neutral position of course).