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Old Jun 29, 2012, 10:57 AM
Registered User
USA, MI, Portage
Joined Sep 2003
828 Posts
Replacement for a brushed motor

Ok, I have no idea how to compare motor sizes. Way too many different "discriptions". So, I have a 540 brushed motor in a boat and I am looking to replace it with a brushless. What do I look for and what are the advantages of brushlees over brushed?

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Old Jun 29, 2012, 11:34 AM
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United States, FL, The Villages
Joined Oct 2010
4,001 Posts
Try asking in the boat section. Some of us, me for sure, are clueless about boats.
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Old Jun 29, 2012, 02:03 PM
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C₄H₁₀'s Avatar
United States, AK, Fairbanks
Joined Aug 2009
12,691 Posts
You can get a 36mm inrunner motor that's the same size as your current motor but will be much more efficient, allowing you to have the same performance and much more runtime, the same runtime and much more power/speed, or some combination.

What are you looking for in terms of performance and such? Also, what type and cell count is your battery (Ni-Cd, Ni-MH, LiPO)?

You'll also need a brushless ESC.
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