After my smoking failure yesterday.... - RC Groups
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Nov 06, 2017, 09:01 AM
Registered User
Discussion

After my smoking failure yesterday....


So after my epic failure yesterday, watching the boat I built for my boy going up in smoke in the middle of a pond due to poor esc selection amongst other things, I just wondered if someone could look over what I bought for my own boat project, as id really narked if this one went up in smoke too!

Its a much bigger boat, well a bit bigger. Its a 30 inch deep v. I'll be running 3s. I haven't got as far as prop selection yet.

https://hobbyking.com/en_us/turnigy-...ess-motor.html
Specs:
Can Size: 540
RPM/v: 3500kv
Poles: 4
Max voltage: 11.1 (3S)
Max Current: 60A
Max Watts: 400w
Resistance: 0.0155ohm
No Load Current: 3.1A
Can Diameter: 36mm (actual motor diameter)
Can Diameter inc. Water Jacket: 44mm
Can Length: 49mm
Shaft Size: 3.175mm
Weight: 234g

https://hobbyking.com/en_us/turnigy-...r-cooling.html
Specs:
Voltage Input: 2~3 LiPoly cells (4~9 NiMh)
Continuous Current: 60A
Burst Current: 360A
BEC Type: Linear with on/off switch
BEC Output: 6V@2A
Motor Connectors: 3.5mm
Servo lead: JR style
Servo Lead length: 250mm
Water Cooling Pipe: 2mm I/D~4mm O/D
Dimensions: 60.5x38.5x25.6mm
Weight: 84g

Any thoughts would be most welcome :-)
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Nov 06, 2017, 03:56 PM
Registered User
Have you considered taking up sail boats rather than powered?

Cheers,

Terry
Nov 06, 2017, 04:22 PM
Just Plane Nutts
AirDOGGe's Avatar
You will want at least an 80A or 90A with that 60A max. motor to obtain some current headroom. KV for the motor is a bit high for the use, but you may be OK if you keep the prop diameter smallish, say 37mm - 38mm. If it runs cool like that, then experiment with larger props.
Nov 06, 2017, 04:30 PM
Registered User
Haha you might be onto something there Tony!

Originally I only wanted to build it, had a mad urge to build a boat so I bought some wood and built it. It sat unpainted in a cupboard for a year until my son hassled me in to finishing it, and here I am lol.
Nov 06, 2017, 05:33 PM
Mopar Musclecar fanatic
xx29l9's Avatar
And don't forget to put a fuse inline....better to blow a fuse than let the magic smoke out.

Bob
Nov 07, 2017, 04:27 AM
Registered User
And what amp for the fuse for say that motor listed up there?

Continuous Current: 60A
Burst Current: 360A


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