Traxxas Marine Motor

[pribco]

Does anyone know the rpm of thr Traxxas Marine 550 brushed motor using standard 9.6 v battery.--this is motor used in Villan EX.

I got one of these today and it doesn't "sound" as fast as the similar Aquacraft motor.

[properchopper]

Does anyone know the rpm of thr Traxxas Marine 550 brushed motor using standard 9.6 v battery.--this is motor used in Villan EX.

I got one of these today and it doesn't "sound" as fast as the similar Aquacraft motor.

They're designed to operate on 14.4 volts.

[pribco]

Guess that means I am getting a little more than half speed--poop!

[Make-a-Wake]

They are right in the 1700-1800kv range.

[pribco]

Make--don't know what that means!!

[Alexgar]

Kv is rpm per 1 volt

[Alexgar]

Your looking at about 17000 rpm

[pribco]

Algar-if I read you right, it would be 17k if I use tye higher voltage-but only about 10k with 9.6 battery--

Guess I will put motor away until I build a tugboat--postage for returning is just not worth it.

[Boaterguy]

with a 9.6V battery you will be getting 17000 rpm, as alexgar allready stated
to measure rpm you take KV (rpm per volt) * the number of volts, for you, it would be 1700*9.6 = approx 17000

[pribco]

Thanks Boaterguy--that's not to bad.
Any idea what rpm the Aquacraft 550 puts out??

[ENCORE MAN]

The Aquacraft motor is a 27 turn fairly generic motor, makes about 100 watts of power and costs $13. You could consider a HPI SATURN 20 turn motor from Tower for $ 20. This motor is fan cooled and produces about 140 watts at 7.2 volts=a significant improvement and still very dependable. Make sure your esc will handle a 20 turn motor. BG

[pribco]

encore-how do I translate what you said into rpm??

[Boaterguy]

you need to know the KV of the motor, there are ways of figuring it out otherwse, I don't know how.

[pribco]

edite-mailed aquacraft-we will see what they say if a miracle happens and I get a reply.

I am assumong that if I use an escape rated for a 27 turn motor with a 20 turn motor the esc ill burn up. Is that the problem??

As per Traxxas-battery is actually 7.2 v--so I would only get 12000 rpm--not good.

[pribco]

Encoreman--looked at Duratrax esc for the HPI motor you recommended--tech notes say motor must have 2 .luv capacitors installed (whatever that means.

Question is--is the HPI motor so equiped???