Originally Posted by
Terry Keeley
In your survey there are a couple "TP Power" motors that are 59 mm and "Proboat's" that are 58 mm. Wouldn't a 60 mm limit cater to these as well as any future changes to these and the Aquacraft motors? Isn't that why NAMBA went to 60 mm?
Just trying to understand here...
NAMBA went to 60mm because you have to write rules that you can actually buy motors for. I purchased literally 20+ motors from all the various manufacturers I could find, and documented the motor sizes, then as accurately as I could, tested and stressed each of them, some to the point of failure. It's all documented and public. (See above).
To be honest, 60mm isn't actually good enough, because several of these are 60.3mm or so, which also explains the 37mm vs. 36mm. Most are 36.3mm or something slightly larger diameter than 36mm.
The NAMBA rule is based on data and facts, to provide abundant motor selection, and the desire to take the ambiguity out of the rules.
In that regard, this updated rule works. It now never has to be touched again...
I'm not here arguing that IMPBA needs to do anything, by the way. Do what you will. Your members (and I'm officially one of them, though I've never raced in that club) will respond accordingly. I'm simply trying to explain how the NAMBA rules ultimately came about.
Darin E. Jordan - Renton, WA
"Self-proclaimed skill-less leader in the hobby."
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