Using Air Motors

I stand corrected then.

Do any of you know any suppliers in the UK for mini EVs or makita drill motors?

Just remember, speed isnt everything.

There are no UK supplier for either of them. You have to order from the states.

i have some motors out of a bunch of makita drills. the 9.6 v version uses 42(!?)mm dia motors.Although, the ones i have are older stuff, with the gears supported in the plastic outer shell.

Best spinner motors i reckon would have to be a Stihl 46.6cc chainsaw. Ive got one here but conning the ole man into giving it to me is like trying to run an Etek on a AAA battery.

But what about a methanol RC motor? The better ones might be a bit expensive nearing £200 or so, but there are motors for about £50 that weigh peak at about 400W or so.

Even the slowest of those motors are capable of reaching around 20000 RPM or so.

But the main advantage is that you dont need any battery for it, so a motor and fuel tank will weight about 300 gram (leaving more weight for the disc).

Ask your local hobby shop, see what they can dig out for you.

The only thing about using a two stroke RC motor is that they have a habit of stalling, at least in my RC car anyway. What sometimes happens is air gets in to the fuel pipe (as the fuel sloshes around in the tank) and the engine stops.

Unless an electric starter, glow starter and maybe a slip clutch is used the engine could stall on the disc€™s first hit and then your out of the comp because your weapon in immobilised.

But I do like the initial idea though, just need to iron out those bugs.

The main saftey issue with running methonal R/C engines is that methanol burns clear. This means to safely run you need to put dye in the fuel so itll burn with a colour that could be seen. I know from building model planes theres nothing worse then starting a plane which then catches fire, because you dont know if the flames are over the carberator port for fuels lines. The only problem with dyes is they eventually degrade the engine, but I think life expectancy is a little consideration is this hobby.

What kind of fuel tank do you use in your car? I dont know about cars, but fuel tanks in planes have a small length of pipe with a wieght at the end so they can run even when upside down.

You may already have one of these, but I thought Ill mention it anyway.

I also know that Kyosho and some other brands sell complete sets with an engine, starter motor and glow starter. Just plug in a battery pack and the engine starts itself.

Of course youd need an extra channel to be able to this be remote control.