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-   -   HELP NEEDED (https://www.rcuniverse.com/forum/speed-rc-gas-boats-236/10148097-help-needed.html)

motoxracr18 11-20-2010 06:16 PM

HELP NEEDED
 
i have a apache 50, when the trottle is applied the boat twist to the right and dont want to ride straight up in the water. when it twist it wants to vear to the right. i need advice on what to do

Scott Schneider 11-20-2010 06:32 PM

RE: HELP NEEDED
 
SHARPEN and THIN prop better than what it is for a start ;)

motoxracr18 11-20-2010 06:48 PM

RE: HELP NEEDED
 
prop is sharpend and balanced. idk what to try first

HendricX 11-20-2010 07:30 PM

RE: HELP NEEDED
 
Shift the complete drive-train 1/4" to the right. (off-set to the righthand-side)

Scott Schneider 11-20-2010 07:47 PM

RE: HELP NEEDED
 
If this is a NEW build, Mono hulls most ALWAYS lean a bit from prop torque. We counter this with a little bit of INSIDE right side trim tab deflection.
A PICTURE of boats transom viewed from prop end will tell us a lot ;)

boatnut 11-21-2010 12:29 AM

RE: HELP NEEDED
 
  TRIM TABS
 As Scott said

Slow Motion 11-21-2010 03:11 AM

RE: HELP NEEDED
 
go to jrcbd do a search on torque roll illustrated read reply 4 by hotrod

Nosedragger 11-21-2010 11:33 AM

RE: HELP NEEDED
 
What prop are you running? we had trouble with abc props with a lot of blade area.

I had the same problem with the apache.
Don't start it, put it in very calm water and see if it floats level.Some are not made very well and won't float level.Once it floats level, or even a little to the left check to make sure rudder blade is not bent and that the turn fins aren't in the water when going straight.
Sometimes a strut that has too much prop in the water will cause it to torque roll, you should have a surface drive on the boat and have the shaft center line no lower than 1/2" from keel.
Put a prather 275 prop on it and see if it goes straight.

Out of 3 hulls we had one would never right.
If it still doesn't run right, put it on ebay.


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