Model Boat Mayhem
Technical, Techniques, Hints, and Tips => Other Technical Questions... => Topic started by: djrobbo on September 20, 2015, 10:33:00 pm
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hi guys and gals...finally got to grips with the perkasa i/ll put piccies on when i figure out how...my question is what brushless motor will work in the 48 inch boat....i havnt got a clue..its got a big mmb motor in it at the mo which is a great motor but requires too much voltage to make it plane...suggestions please guys..
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Hi
This was a set up by one of our past members ( He Liked speed ) :-)
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What size model are you building?
My 36" huntsman has a brushless setup and will stand on its transom if you give it too much throttle lol
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Hi...its the big one 49" fibreglass hull.almost finished just a few bits to finish..i belong to southend model boat club so i will try it out on their lake...any idea what size the motor is...cheers..bob.
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Hi Bob.
That motor is a Keda TR2837/18. It is a 830KV motor & is running on 9.6 volts in the picture, giving an off load shaft speed of 7968 rpm. Depending on what batteries you intend using, you could go for the TR2837/14 & run it on 2s lipo's to give around the same speed, the advantage is that the Lipo pack is around half the weight of the Nimh pack (so you could run 2 packs & have 10000 mah capacity) the disadvantage is the Tr2837/14 will draw more current than the TR2837/18, depending on the prop size you use.
I will now go & hide from the H&S police who will shortly be along to arrest me for suggesting you use 2 lipo packs in parallel without warning of the catastrophic damage it may cause to all living things in the known galaxy. Yes it can be risky if you are a complete Muppet, but i was just suggesting some options available & once you have considered them ( because you are not a Muppet) you will then ask for further information from members of the forum & club before proceeding.
See you soon
Glenn
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thanks for that glenn i will now set to finding a suitable motor.
regards...bob