Ose 700sc

[bwells]

Does anyone know the maximun voltage the OSE 700sc can handle? I'm currently running 16.8 but want to go more. Thanks

[ED66677]

I think (but I might be wrong) that the max is 14.4V, but like every motor you can go above the max, efficiency will drop and you'll have to use a smaller prop.

[bwells]

Opps, Ive been doing 16.8 with a x642 but want to prop up,am I overdoing it? I figured it could go to 20 volts!! I was leaning toward a couple 9.6 and an x645. Maybe 2- 7.4 lipo and call it good!

[ED66677]

is the motor heating up a lot?

[Simon.O.]

16.8 or a fully loaded 4S lipo and a 642 is pretty hot for the 700.
It will depend on the actual loading. This is the hull type, size and running attitude. Then there is the run time.

I ran a OSE 700 in my old abs 29"mono that ran a little wet, I fed it with 4S lipo and used a 440 and got no major heat on the motor. The esc was another story.
A 640 was a lot hotter.

Spell out your setup and pics are always welcome.
Lastly, if the motor is not getting hot then you can move up, be sensible.

[Steven Vaccaro]

I agree with the other guys. 4s or 16 nimh are the max that should be used.

[Fluid]

Even on 12 cells it is pretty easy to permanently damage a 700 motor. We used to race them in our LSH boats on GP3300 cells with no problems, but once we started using IB4200 cells with their higher voltage the motors started to fail. One run that was too long or overpropped or hauling a wad of grass would overheat the motor (over 155F is bad) the comm would warp and it would never run right again. We were replacing motors 2 to 3 times a year, while with lower voltage cells a motor would last over a year. This is what pushed us over to BL motors in the LSH boats this year. It has proven to be much cheaper to race a season - one $60 motor instead of two or three $45 motors.



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[sjslhill]

RT-8B7WA-AB8 will run forever, if the OSE motor won't work for you.

[cacofonix]

hi there

depending on how long are your run
a french boater build a wood rigger , a 700 motor and 6S lipo !!
max speed was around 53/54 mhp !!

each run ... 1 minute max

herve