Hello,
I built my first tow boogie and did a test yesterday. The tow boogie didn’t go straight but go always to left. Below some photos of my boogie and rod. What can I do? Thanks
Show us pics of the underside and motor setup. It could be a number of things but nothing obvious from the pics.
Most likely yes, the prop torque bends the fin as there must be a lot of leverage there. My boogie is single motor but tracks straight.
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since it is a single motor setup i assume the motor/propeller adds some torque on the whole board causing it to go left (my single motor setup does the same). I suggest adding a vertical trim / rudder thing on the tow bar. Make it adjustable to be able to tune it.
Definitely the sup fin twisting with torque causing the board to turn.
I want to try again moving the battery to the right. On my first try I put them not in the midlle but on the left. So maybe it wasn’t balanced.
Otherwise I’ll buy a foil mast and 3d all parts.
What the perfect lenght for the mast? 30 cm?
The rod/rope attach is good?
The let the boogie turn is enough pull the rope on one side?
Thanks
@Kingsurfboards I think mast length depends on the boogie shape and dimensions. Mine as about 22-23cm and im using 137cm boogie/surfboard. Most people seem to be around this but have a look at this post here which claims less torque roll with a shorter mast
The battery box should be on the side depending on what direction your prop is spinning:
CCW prop = left side
CW prop = right side
If you still have issues try adding fins on both sides, like a surfboard. It helped my boogie track straighter and counteract roll a bit but still can steer well.