Drifting to the left?

[MJH]

Hello all

Very new to RC Boating, but lovin it so far.
I have a BJ26, all stock so far (have an x642 but not installed yet) I have removed the battery trays and lowered the ESC, as per the the info listed on this site. very thing else is stock, running 2s 5000 lipos (have the programing card), the set up of fins and prop are still all stock.

When I'm at half or less the boat tracks straight, when I'm at full it drifts to the left and ideas on what it happening, or how to fix it?

Thanks for the help.
Jamey

[G-UNIT]

Are your turn fins actually stright or are they slightly twisted.
try to counter the drift with your rudder trim on your control.

[Fluid]

I think that 'G' meant to say rudder trim (?). It is odd for a boat to drift to the left with full power, since prop walk and torque usually make the boat drift to the right. Turn fin misalignment makes the most sense from what we know now.




.

[G-UNIT]

Yea rudder trim DUH !!!!!

[MJH]

Thanks for the input I will have a look at the fins, what angle should they be compared to the hull?
Are there any other mod I should do that will help with speed or handeling (other than the new hardware)

[G-UNIT]

Start with the same angle as the hull and shorten them alittle at a time, or move the fin up to the top hole, bottom bolt hole to the top and tape over the bottom bolt hole and see how she runs.
go to a x642 prop, should pick up some speed and play with strut angle and cog.

[MJH]

OK had a look at the turn fins and they look straight.
As for the trim on the Rx if I set it to run straight at less than full when I punch it, it drifts left, if I set the trim to run straight at full speed then at less than full it drifts right. Any other idea's as to whats going on?
Forgive me for this next question bit please remeber the boating thing to me is still new, what is the strut and cog?

[G-UNIT]

cog is the center of gravity and strut is what the prop is connected to.
also check that your stuffing tube, thats the thing that your flex shaft runs
thru is stright.
Don't worry about questions if I can help I will, only been doing this myself for about 7 mo or so and everything I know is from reading
this forum, so adjusting your strut height and playing with your center of gravity by which I mean moving your batterys for or aft will give your boat different speeds and handling.
so don't worry about trying differ'ent things, think it and go for it.

[MJH]

What effect does adjusting the angle of the prop up or down have on how the boat runs?

[WrknItUp]

I agree with everything every one else has said there very smart when it comes to FE boating, I had the same problem. does your transom tilt a little bit meaning does it lean with you look at it? it has to be perfectly straight up and down to run straight in my experience. i loosened the 4 screws and used a 6 inch level on everything to make sure it was almost perfect tightened it back up and it goes straight at any speed.

[MJH]

I will get a level out today and have a look!

[G-UNIT]

Well for example if the strut is raised and the prop is tilted up to the surface you would see that the boat might have a hard time getting on plane, prop tilted up to much would cause the back of the boat to push down and the front to push up, also the other way around, if the
prop is angled down the back of the boat is pushed up and the front of the boat is pushed down, you don't want the boat to run (wet) which means the front of the boat is in the water to much also you don;t want the boat to run to (dry) which means that the front of the boat is to far out of the water, which would cause the boat to become unstable and flip at speed.
so as you can see you want to play with raising and lowering the strut and changing the angle of the prop to get the best speeds, also changing the COG fore and aft inconjuction with everything alse, but don't do to many adjustment at one time because you won't know which adjustment is doing what, I hope this brings alittle light to you.
also try to goggle prop angle. there should be some pictures of what I'm trying to explane.
talk to you soon, later,
g-unit