(I already posted this in Engine Discussion, and someone suggested I put it here)
I'm starting to build my first remote control vehicle. The istructions call for a size 330 DC motor. I have been unable to locate a motor this size, in fact most of the motors I have looked at don't even say what size they are in that format. What I am wondering is; what does the number 330 mean? Is it the width, the length, or something else?
If anyone could answer my quandary that would be great.

Much thanks.
Ashman

Are we talking about a small DC electric motor or something else ?

Also are you sure you're not misreading it. 330 is not a common size. Most small electric motors are made by a Japanese company, Mabuchi. 380 is a very common size, also often called a Speed 400.

Can you get an idea from the plans etc what physical size the motor is ? That would help.

Steve

You'll have to be more specific about the "vehicle" you're trying to build. How big is it? What kind of vehicle is it? What does it do?

This does not sound like an airplane. It may be that the "330" refers to some sort of industrial motor.

It is a motor for a hovercraft lift fan. It just inflates the bag on the bottom so that the hovercraft lifts off. It's definitley not an industrial motor. It's like the 380/400 motors, except smaller (I think).

What size propeller or fan is it intended to use and what type/size of battery ? That will give us a good idea of what motor you might need.

Steve

I am using a 6 by 3 propeller, and I'm going to use a 7.2 volt battery. But the motor must be able to fit in a certain mount.
Thanks much,
Ashman

You seem determined to give as little information as possible and then only in response to direct questions. Why don't you just try the Mabuchi motors website (http://www.mabuchi-motor.co.jp/engli...uct/index.html) and see if you can find a motor which fits the mount, whatever size and shape it may be ?

BTW 6x3 is a fairly normal prop size for a 380/400 motor when used as a lift fan on a hovercraft. I usually use 7 cells though.

Steve

Yes, what is so "sooper sekrit" about this hovercraft project that we have to practically torture you to get any information? You mention instructions. There must be a name for this hovercraft written on the instructions, the name of the person who designed it, etc.. Such information might be helpful.

I agree with Steve. It's probably a "380" motor because a 6x3 prop is about right for that motor at 7.2V.