So last summer, when playing on my mini airboat, it would turn left on a dime, and if i let go of the stick, well i never wanted to go flying out of it, so i never did. But it had the hardest time turning right, there was times that it just wouldn't turn to the right at all, and when it did, it was after working the rudders back and forth a few times, trying to remember what all the variables where last summer. just to many what ifs.
so when i set up the rudders last fall, they were perpendicular to the prop, at 20" center to center. with no toe in or toe out. ( if i remember correctly)
a while back i was talking with a friend that built just a couple of the big air boat. and was telling him about the problem that i had turning to the right. and he recommended that I needed to install some 3" X 4" trim tabs on the trailing end of each rudder, and use them to adjust, so when or if i need to let go of the stick the boat goes straight.
i never did think to ask at what height i should place them on the rudder tail. at the bottom, middle or top.
after looking a little more, i see some ultra-light airplanes that also have fixed trim tabs, which are attached to the tail.
then as for alignment goes, i see more comments are recommending to have about a 1" toe in,
all i know is that when i set things back up this spring, this is one of the items that i need to address.
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