Thread: Discussion Question: rc propellers
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Old Oct 10, 2012, 02:57 AM
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Joined Aug 2009
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You have options.

The simplest thing would be to ditch the spinner entirely. Add a spacer of some sort to the adapter shank (between motor and prop) to make up for the loss of the spinner and then just bolt on your new prop. It won't look quite as pretty, but it solves the problem and won't affect performance. You'd also be able to change to props with different blade counts without worrying about different spinners.

Next possibility would be to trim down the molded bits on the spinner backplate until you can fit other props. As long as it's balanced it'll be fine. This would let you keep using the spinner, but it's a little more work.

If you went with the first option, you could also buy an aftermarket spinner and use that. You'd have to settle on a certain number of blades, though.

The HobbyKing prop adapter in your link is useless in this case. It's meant to be attached directly to a motor's output shaft. The setup you have uses a bolt-on prop adapter which performs the same function but simply bolts to the motor's can rather than being attached to its shaft.

Note that you cannot just slap any ole prop on there and expect everything to be ducky. The prop determines performance and, even more importantly, current draw. If you put on a prop that loads the system too much, you could fry the motor, ESC, or both. This is where it's very important to have a wattmeter for keeping track of changes in electrical vital signs when you start experimenting with different props. Even props with the same stated dimensions (e.g. 11x9x3) can have very different characteristics.
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