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[bikerdude666]

I bought a couple of 385 motors at weekend, and I have a spare mtroniks viper 10 and viper 20 esc, was wondering if anyone knew if the motors would be ok on together on the 10 amp or should i put them with the bigger 20 amp esc? thanks

[Tug-Kenny RIP]

I would go for the larger amps.  You never know if a prop might get caught up in weeds and stall.  Not forgetting to fuse the lines separatly in case.

ken

[treeboa]

ive got three 400`s on a mtroniks 25 without a problem, you need to consider your props carefully though

[bikerdude666]

I was advised to use plastic 3-blade 30-35mm props. Thanks I'll use the bigger of the 2 esc's, not whether to attempt to make my own prop shafts or buy some.

[Subculture]

What 385's? They do come in different winds. The 385's MFA supply are very mild motors , even under heavy load they pull under an amp of current, so a true 10A controller shouldn't even break into a sweat with a pair of those running.

35mm props sounds a bit large for the 385's to directly drive.

[bikerdude666]

Got them from ACTion, think they're MFA, should be 10 proper amps, its an Mtroniks, not had a problem with them before, I've got a couple of 30mm 3 blade props so I was going to try them out and see how it went, unless you think even a 30mm will be too big?

[Subculture]

Might be okay. I'd say 30mm would be the upper limit for those motors. Depends on pitch of the props etc.

[Edward Pinniger]

Whilst I'm not exactly the greatest at setting up R/C hardware and so not really qualified to give advice  , my USN subchaser has two 540-type motors (not sure of the exact type as they were salvaged from a RTR boat) controlled by a Mtroniks 15 ESC, and I've never had any problems with it. However, I should add that I rarely run it anywhere near maximum throttle (which is way over scale speed) and it only has 25mm props. But two 385s on a 10amp ESC should be no problem; as other posters have mentioned, though, 30-35mm props might be a bit big for 385s. What type of boat are you putting them in, and what sort of speed are you planning on running it?

[bikerdude666]

Big, wide flat bottom hull, want to get best speed out of it as possible, so it'll probably be on full throttle most of the time! so I'll have a look for some 20-25mm props. Thanks,