do you guys think it will fly? lots of work yet to go, everything was just set together to see what it looks like. still have to make a prop adapter and shave the flywheel and build a mount and exhaust. this is my brother's plane, the engine was given to us because it wouldn't run, turned out the cylinder sleeve/head was loose, ran fine after the two bolts were tightened. any suggestions would be apreciated.

Jason

I really don't see a problem with it flying. It may work out great. You may want to consider moving the firewall back even more to help with the CG problems the gas engine will create. Did you put your servos in the tail? If not, this is a must. The battery may even have to go back there.

I am currently finishing up a Goldberg Ultimate that will have a Homelite 25cc on it. I got the CG in the range with that short fuselage, so being that the stinger is longer, you should be able to do it.

By the way, I currently fly a 60 sized Stik with a 25cc Homelite on it and it is awesome. Unlimited vertical and a great sound.

Look into ways to hop-up the engine by searching some of the forums around this site. I got upwards of 800 rpm improvement from my homie by researching the Internet and following advice.

Can you remove the fins on the flywheel of that engine? It will reduce weight and reduce air drag, just be sure you have a way to balance it.

Hope some of this nonsense helps you!

Tom

thanks, that's what I was hoping to hear. we do plan on removing the fins and maybe see if we can balance the engine too. we know how to balance a multi-cylinder engine, we just need to find out if the same procedures aply to one cylinder engine or if the balance has to be different. not sure yet what hopups would work, the engine uses the piston for valving so I need to do my research before I try anything. at least get it running stock/balanced to at least have a base line to compare to. servos in the tail and maybe battery too should balance it. thanks.

Jason

CRASHHAWK,I have same engine and was planning on useing it in a Lazer 200 1/4, but when I took a closer look at the carb. it's a zama carb. aand it does'nt have an accelerator just a choke switch. and I haven't found a deccent muffler for it yet becuse if you notice the exaust is kinda funny it's kinda lower than where the screw's set in. there has to be a deferent carb. for this blower engine.

If you guys want to take a pound of the nose and make that plane lighter convert your engine to gas/glow hybrid ; see the " gas fuel glow plug no ignition" thread here on RCU, it will give you more power and remove weight at the same time