Avaiojet

I'm looking into twin cylinder nitro engines. Nothing much larger than .40, and diesel is OK.

I have no idea who is making small nitro engines. Older engine OK also.

Information and education I need.

Thanks in advance.

Charles

Turk1

Look for ASP brand.

mike109

G'day

The smallest commercially available multi cylinder engines that I know about are the Saito 60T and the Saito 90TS. I have a 90TS and it is a nice little engine. It has 0.90 cu in capacity and is a true "boxer" - ie it has a double throw crank which means that the pistons are always moving opposite to each other. This makes for a very smooth engine. I have it in a Goldberg Cub which does not need a very large engine and the 90TS flies it well. The 60T would also be fine in the Cub but the 90 is recommended for float plane applications. I think my 90TS is about as powerful as a Saito 62 single cylinder engine.

Multi cylinder engines do not have as much power as single cylinder engines the same size because of the additional mechanical complexity. I also have a 90R3 which is really three Saito 30s made into a small radial. It is not very powerful at all and to make it reliable and more powerful I have to us fuel with more nitro in it. I usually use 10% nitro but the 90R3 runs better and is more reliable (does not drop cylinders) if I run 20% nitro. It is about as powerful as a 50 single on 10% but as good as a 62 on 20%.

Multi cylinder engines do sound amazing and I think this is their greatest attraction. The sound of the 90R3 at idle is amazing and worth the price if admission. At full noise, it sounds like a small Ferrari engine.

Cheers

Mike in Oz

Sport_Pilot

4 stroke or 2 stroke engine?

earlwb

There aren't any at this time. CS makes a inline twin .30 model diesel engine, and there are some Saito .60 and .90 twin four stroke engines about, but that is it. There were a few antique or vintage small twin cylinder engines in the past though. Sometimes Valentine makes some twins and his engines pop up for sale from time to time, but these engines are really small in displacement though.

Sport_Pilot

Mecoa sells the twin HP 1.2 or did recently. No mention so new or old twin engine. Fox twin engines come up for sell from time to time. Also the old Ross twin.

earlwb

Sometimes the cute little G-Mark Twin .30 pops up for sale. G-Mark also had a small 5 cylinder radial engine that occasionally pops up for sale too.

Avaiojet

Guys,

Thanks for the info.

Two stroke is what I want.

I had a Ross .60.

Webra made a "Boxer-Twin." I know nothing about it except for the ad in an old magazine. .45 displacement.

Who has the talant to put two .20's together. Well, it has to work!

Charles

downunder

About the only twin I can think of in that size is the Taplin Twin diesel in both .42 and .49 sizes. The originals were made in England but others were later made by Aurora in India. Be prepared to pay though when one occasionally comes up on Ebay.

freakingfast

My Feedback: (3)

Is that homemade/modified Enya boxer a paperweight ? If the rods use a common crank pin, would there be any case/primary pressure ?