Boogie board airboat spins out too easily
01-30-2022, 04:00 PM
#1
Thread Starter
Join Date: Apr 2017
Location: Egg Harbor Township, NJ
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
Boogie board airboat spins out too easily
Hey guys I built an RC airboat out of a full size boogie board years ago. It has a Super Tigre S3000 on it and I mix my own methanol and klotz castor for fuel. I have always had an issue with it spinning out while I'm trying to go straight. I just bought some wooden trim which is about a 1/4 inch thick and 3/4 in wide. I wanna cut to the length of the boogie board and epoxy it to the bottom. My question is how many strips do you think I need on the bottom to keep it straight but not restrict turning?
01-31-2022, 04:42 PM
#3
The strips on the bottom are bad news if you want to turn. At all. Your spinning out problem is due to your rudders bring WAY too small. They big of an engine needs a big set of rudders. At least half prop diameter for height and width at minimum. 2/3 to 3/4 prop diameter for width would be better.
01-31-2022, 06:10 PM
#4
Thread Starter
Join Date: Apr 2017
Location: Egg Harbor Township, NJ
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
The strips on the bottom are bad news if you want to turn. At all. Your spinning out problem is due to your rudders bring WAY too small. They big of an engine needs a big set of rudders. At least half prop diameter for height and width at minimum. 2/3 to 3/4 prop diameter for width would be better.
This is a comparison. New VS old.
02-02-2022, 08:24 PM
#7
I’d suggest the rudders be at least 9” tall with 10” being better, and 8-10” deep. Couple this with a 40-45° throw and you will have some impeccable steering and control. Having the boat properly balanced for center of gravity is important and shouldn’t be overlooked.
The following users liked this post:
Cecil Webb (09-13-2022)
