ML Boatworks- 30" P-spec Tunnel Build another new one!

[bigwaveohs]

Didn't see anything in the IMPBA Rules about ESCs...did I miss something?

[Chilli]

Nope. There are no rules pertaining to ESC's in the rule book. In addition to the IMPBA rule book, IMPBA clubs and districts can develope their own rules. The Spec or limited classes that many districts have run using the UL-1, SV27 and BJ26 motors are not in the IMPBA rule book. They are district/club classes and some districts have ESC rules for these classes. I believe NAMBA does have classes using these motors and do have rules pertaining to controllers but I believe there are plans to remove them. Hopefully someday, IMPBA will adopt these rules on a national level.

[bigwaveohs]

Nope. In addition to the IMPBA rule book, IMPBA clubs and districts can develope their own rules. The Spec or limited classes that many districts have run using the UL-1, SV27 and BJ26 motors are not in the IMPBA rule book. They are district rules. Some districts have ESC rules and some don't. I believe NAMBA does have classes using these motors and do have rules pertaining to controllers but I believe there are plans to remove them.

NAMBA rules do not specify ESCs; just motors and battery voltage/capacity limits. As you indicate there are sometimes also "spec" classes (P-spec OPC) which refer to ProBoat, Aquacraft (UL-1, SV-27) and other "spec" motors that come with the RTR boats. This keeps costs down.

[egneg]

Chuck, I will definately let you know about what I need done for a prop. Once this rain clears out, I will hit the lake again. I have to cut out different stumble pads too. I am working on painting an 1/8th scale FE Miss Circus Circus I built for a guy this week, so that is my #1 priority unfortunately! Mike

No Problem ... when ever you are ready Mike.

[Chilli]

My bad Patrick. I read on IW that the P-spec tunnel rules used at the World Tunnel Championships and that I adopted into IMPBA D12 were taken from the NAMBA rule book. I just looked at the NAMBA rule book online and could not find it.

[Doug Smock]

My bad Patrick. I read on IW that the P-spec tunnel rules used at the World Tunnel Championships and that I adopted into IMPBA D12 were taken from the NAMBA rule book. I just looked at the NAMBA rule book online and could not find it.

Those were authored by a NAMBA member. The CMB adopted them.

Doug