Mini arrow motor CW/CCW?

[ducksoup]

I purchased 4, 2204 2300kv motors to build a small quad. 2 have CW threads and 2 are CCW threads. I've decided not to build the quad at this time and build a couple mini Arrows instead. My question is, does it matter if the motors spin clockwise or counterclockwise as long as the prop has the writing facing forward and the prop spins correctly so it's pushing? I hope I'm making sense? A guy at my local hobby shop said i couldn't do that and i maintain it doesn't matter which direction the motor turns as long as you use the correct CW or CCW propellers and the motor turns the opposite direction of the threads on the shaft, (with clockwise threads you want the motor to turn counterclockwise, correct?)

Thanks for your help!

 

[xMeox]

You can use all motors, as long as the prop spins in the right direction. The only problem might be that your mount screw gets loose. While a correct motor tightens the nut, the other one might loosen it.
Im asuming you have normal propellers (eg 6x4) and NOT reversed ones (eg 6x4ccw) I would choose the following configuration: for pusher planes use the ccw motor, for normal planes with motor in front use the cw. This way you will not loose a nut.

I have flown planes quite a bit with the wrong set up and lost two nuts. Not a big deal as they are quite cheap, but still annoying if you dont have a second one at hand.

 

[Hai-Lee]

The motor direction of rotation is normally determined by the thrust angle of the mount in the design. If the motor mount has a thrust angle built in then follow the recommendations or change the thrust angle, (side thrust only).

As for adapter nuts coming loose I use a locking washer between the nut and the adapter so that when the nut is tightened the washer bights into the adapter and the prop. Do not use one under the nut because if the prop slips it will quickly undo the nut and a landing will be required.

As for what I use the answer is simple my planes use both some are CW only, some are CCW only and a small number can use either, (as long as I change the motor rotation that is).

 

[ducksoup]

The Arrow is a pusher design and doesn't have any thrust angle built in. I have both CW & CCW propellers because this all started as a quad project. With the Arrow build I'm going to build two. On one i wanted to use a clockwise motor and the other will use the counterclockwise motor, (yes i know its the threads on the shaft that are CW/CCW, not the motor) That way I'll be able to use all my motors and all my propellers. I also have the low profile nylon lock nuts so it sounds like i should be good to go!
Thanks for your responses!