View Full Version : gear boxes

Old Vetter
01-18-2016, 02:22 PM
Are gear boxes allowed in P-spec classes? If not, it seems like a good way to increase the kv on the prop shaft. If the max allowed is 2030 t 5%, a change of gears and you could bump that up? Just wondering

01-18-2016, 02:47 PM
AFAIK they are allowed in NAMBA. One club member races a P-Limited Mono (Titan 29) with an AQ2030 motor on a Fine gear box, it runs as fast or faster than other club boats. Gearboxes are normally run in reduction to allow larger more efficient props.


01-18-2016, 06:21 PM
You could try overdriving the prop but you would probably accomplish the opposite of what you want. Gears are usually run so you can run a bigger or specific prop with a specific KV motor. Back in the day we had very few KV choices and limited power so we ran High KV motors and gear reduced them. I ran Most of my offshore boats that way quite successfully. (A few championships and NAMBA records)