FlyerBry

My Feedback: (8)

If you are looking to go gas on this plane here are some choices to consider. Note that a 26cc is roughly the same displacement as a 1.60 glow engine. The difference, however, is in the fuel and weight of the gas engines versus the glow options. Gasoline produces less power than glow fuel and the gas engines are also heavier than a comparable glow engine so keep this in mind.

http://www.bcmaengines.com/BCMA26.htm

http://brillelli.com/brillelli_engines_007.htm

http://www.horizonhobby.com/Products...rodID=ZENE20EI

In terms of performance, the best options on this airframe include the YS 110 and Saito 125. These will provide maximum power at minimum weight. Of course, the drawback is you are burning expensive glow fuel that is a sloppy mess to clean up.

The gas choices are much cleaner and therefore require much less cleanup. Also, gasoline is dirt cheap in comparison to glow fuel. The plane will also require a smaller fuel tank that can be located on the CG than if running a glow engine. However, the gas engines will be heavier so your plane will be dragging around extra engine weight (not totally offset by the lighter fuel load) while not making as much power.

It depends on how you want the plane to fly and your flying style if you will be satisfied with one of the gas engines on this plane. This would be an easier decision if we were talking about a scale high winger. In a high performance biplane however, the gas choices may not be a good match.

I have been trying to make this very decision myself and although I have talked to a couple people who have seen or known someone with an Ultimate 10-300 with a Zenoah G23/G26 on it, I haven't been able to actually find anyone who has first-hand experience with a gas engine on this plane. Therefore, the final performance with one of these engines is a bit of a shot in the dark. While I believe these engines are light enough for the airframe, I'm not so sure they would have enough power to make me feel satisfied.

FlyerBry