so i was looking around latley for a gas engine cause i HATE the mess of oil all over my plane when im done flying. wat i was wondering is what brands are out there for gas engines that are for .60 size planes and lower? and from wat i have seen there are not many out there for smaller planes. Y do you guys prefer nitro over gas? wat is the differance in maitnance?

P.S. Thank you for your time and answers.

I think there is one close to that small. RCS SV 17 (17cc) is about equivalent to a 0.91 c.i. glow engine.

http://www.rcuniverse.com/forum/m_88...tm.htm#8819123

I prefer gas to glow-fuel. There is still an oil to be mixed (they are both two-stroke) but the gasoline & Husquvarna oil is still 1/4 the cost of glow-fuel ("Nitro", though some contains no nitromethane). The Walbro carbs used in gassers are much more complicated than any glow carb and can be cranky (especially with ethanol creaping into our gasoline). But you spotted the big difference. Gas engines are large and heavy and require lots of model to lift them.

You can convert small glow engines to diesel. That may be an option.

I still fly glow engines most often. Mostly because the slammer .40 and .60 size models are easier to transport and faster to rig (my gassers are 1/5th and 1/4 scale biplanes).

You'll find very few gassrs for .60 and smaller airplanes. The problem is weight mainly. The RCS-17 that was mentioned is one option as are alot of the 20-26cc gassers out there. They will be heavier than a typical glow engine though especially once you factor in the ignition box, battery, and so on. For some planes that is not a problem and a few actually need the added nose-weight. Many will suffer from the extra pork though. Saito makes a 1.25 4-stroke gasser but I've only seen one in action. Looks like a nice engine but pricey.

I really like gas but for .40-.60 planes, glow is probably a better option. Electric is also something to consider if you hate the mess. You might also try a different engine. For instance, the OS 4-strokes seem to be much cleaner than the Saitos and some others.

basically it comes down to weight. gas burns hotter so it needs bigger cooling fins which = more weight for the engine. gas also requires a ignition system which weights more than half a pound w/ the battery. gas also is less powerful than methanol so you need a bigger gas engine to produce the same power as a smaller glow engine which = more weight

gasoline really isnt totally efficent until around 50cc area, smaller gassers will feel the weight and lack of power (in general). though with new smaller gas engines dle30cc ect they are getting lighter and more powerful

i wouldn't go gas in a 60 size bird....gas is convenient on 120 and up

Gas is heavy....I love my gassers.....lots of vertical......I don't want to fly glow again.....
step up to a 120 sized airplane get a 20 to 26 CC and have a ball......I have a friend that runs Southeast RC engines.....he has everything from a 26 to a 120 CC in his garage....He has excellent customer support....give him a shout

BTW, if you decide to stay with glow, there is a solution. It can work perfectly in some cases. It usually works very well in most.

Silicone exhaust extensions work wonders usually. I've got a couple of everyday models that are almost electric-clean at the end of the day. And most of the rest only take one paper towel at days end.

If the ones sold in the LHS don't work for you, try the "tuned pipe connector" blue silicone hose and use a length of it.

It won't solve every problem but it'll make most of them no problem at all.

This is how I figure it too, after 1.20 I go to gas and any plane that requires nothing bigger then a 1.20 glow I go to gas. I do have one of the older RCS 1.40 gassers that will work in a 60 size plane, the engine is very light but then as mentioned you have the ignition, battery and swtich plus a muffler to think about.