What is the smallest (reliable) gas engine generally available. I am hoping for a 15cc to 18cc.

There are even smaller, maybe you can check the offers and also the news at

www.webra-austria.at

I believe they have 10cc, then 15cc, and up, etc.

mine are even smaller although not for sale they are .90 and very reliable fly mine every day.

I need to clarify my question. It is GASOLINE I am looking for. Not glow plug engines. I have an entire drawer of glow engines. I want to convvert my .90 to 1.08 glow engines to gasoline with a spark plug.

mine are gas , the same 50:1 as my da 100 and all use

I picked up a small 15.9cc (0.97 cu.in) toro complete engine a while back. It has great compression. It looks like a scalled down 25.4cc toro. The bore & stroke are 26 X 30. It weights a hair over 4lbs. with the recoil starter, flywheel ign., clutch & housing, muffler. nothing trimmed. I doubt if I will do any thing with it. It could probably could be tirmmed down to two to two and a half pounds with EI ign. or gas/glow set up.

If you ever want to sell it let me know. phil

15 cc GAS:
--------------------
http://www.webra-austria.at/motor.ph...r=AERO&lang=EN

and you most likely nobody can beat that performance; check that, it is even too
good.

that es awesome. I will have to find if webra sells it in the US. Thanks.

I guess Horizon is one Webra dealer in USA but(!) it might be
cheaper (including Shipment and VAT) if you order directly from

www.lindinger.at

and the Link for that Webra is:

http://shop.lindinger.at/product_inf...ducts_id=66345

It is a great and clock-alike service from there already for me the last several
years. Only Tower Hobbies in USA can compete with those guys.

That is a good looking little gasser but the price of Euro 365.00 ($494) is too steep for me

Well, it is a Racing Engine and thus expensive. In fact we have just had a discussion on other forums and we came to some
kind of conclusion that the Price of Fuel is what sets the Decision Point, to go or not to Gas. For me Gas makes sense for
displacements in the range of at least 50cc and better at 80cc because I use only Methanol and Castor oil and mix the
fuel myslef. For ready made fuel & frequent flyiers the people find 26cc is the point where one should pay the cost of
the Gas related ignition and other things(problems!). Thus, following what you mention, the Cost, I believe Gas is not
your friend at those small displacements anyway. In fact Webra had 10cc Gas engine but it somehow was without
customers. Beside the Ignition, Valbro Carb is not cheap nor light either...

Some guys also try to use gasoline on glow-plug engies ... I tried that some 30 years ago when I was at their age
and the result was good for the circus ... Flames, Explosions and broken engine at the end ...

Well, maybe Ethanol when established as fuel would bring a "third" dimension on this topic.

KenLambert; What make engines do you have? Conversions of some sort..........?

Edited by oldtimer2

You have the money as of two minutes ago. sounds like a fun project. I may pot it in an 80' wing j3 Cub I have an OS 70 4 stroke in.

I converted mine to gas , made all the parts and fly them myself did do a couple for freinds ( they furnished the parts labor was free for the fun of it )