shaft diameter on feigao 540xl

[pmdevlin]

Hi Paul, wont be happy with speed till I smell that wonderful smell of electrical death!!

thanks for comments, but I would like just a bit more speed. THe nimh'sd I am running are 2yrs old now, so prob not at their best, 4600 9.6v x 2, I thought about lipo, but its the cost really, I am well over budget with this heavy tub, if my missus found out what paypal really was I would be in the divorce courts!

If you have any suggestions re lipo, great.
I have just been inspecting the boat, and it looks like one of the gears was slipping on the shaft, so I could have been losing a bit of speed there, next test will do a longer better video, going to try th 1.5:1 ratio, I HAVE TO KNOW what its like! !!

[Simon.O.]

I am not the biggest fan of scale boats out here but I will say.
Nice boat !!

Listen to Paul (785boats) he knows his stuff for scalers and can hold his own with the fast guys too.

Well done.

[785boats]

Thanks for the vote of confidence Simon. I just muddle through.

pmdevlin.
Do the batteries get warm or hot after a run? That is a lot of boat to push. If the motor & ESC aren't getting warm then they are not being worked hard. That's a good thing.
I agree You have to try the 1.5:1 ratio, but I wouldn't go up in voltage as you are already increasing the load on the motor so the current draw on the batteries is going to increase. You may need to prop down slightly first & then work your way up keeping an eye on the temps as you go.

Perhaps grinding a flat spot on the shaft where the grub screw hits, to stop the gears from slipping, might be in order.
Cheers.
Paul.