Propeller covers holes on the motor - RC Groups
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Jan 15, 2013, 01:02 PM
Registered User

Propeller covers holes on the motor

I am newbie to RC hobby. So please bear with me if this is stupid.

I broke my stock propeller on Yak-12. The new propeller I bought sits snuggly against the body of the motor (which rotates along with the shaft) covering the holes ment for I believe cooling.

Is this OK? Or the motor will overheat due to lack of airflow inside the motor where the coils are?
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Jan 15, 2013, 01:32 PM
An itch?. Scratch build.
eflightray's Avatar
I had a look at some Yak 12 models in the forums, they either have a 'prop-saver adapter', (the prop is retained with a rubber ring/rubber band), or the fairly standard 'prop adapter' that retains the prop with a nut or small spinner shaped nut.

Both should be able to be positioned further out on the motor shaft to allow air into the motor. The Yak 12 has a radial type cowl with a relatively small center hole for cooling.
Jan 15, 2013, 01:38 PM
An itch?. Scratch build.
eflightray's Avatar
If you click on the Search near the top of the page, type, Yak 12, and set it to Show Threads, it should come back with a list of 3 electric powered threads, (plus 1 fuel powered thread).

They may be of help.

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