Mark I love the entire lower end of the AX line up to the .95's no experience with the larger ones but own and operate many examples of them on a wide variety of airplanes. But I gotta say I really love that OS 15cc.

I only have one example of that engine but you know its on my last cross country airplane, the one I,ve discussed in other threads of yours and its gonna stay. That airplane started life with an: OS .95AX, OS .65AX and finally the OS 15cc spark ignition.

The 15cc gassor engine comes with either a spark ignition or glow ignition as noted I,ve no experience with the glow ignition version but the spark version is reliable to the extreme and a real stump puller and my favorite over the .95AX in many applications.

John