Several people on this site has suggested that the engine orientation be changed. Some prefer the engine to be mounted on it's side instead of upside down. Mine is mounted at an upside down angle. I didn't mount it this way because I prefer it. I mounted it this way because TF suggested mounting it that way. I think it's ok that it's mounted this way. But every time people make this suggestion to me, I scratch my head. How does a person take an existing firewall, that is already drilled out, blind nuts epoxied in place, and then the firewall is glued permanently to the fuselage, and then change it so that the engine mount can be screwed into it into a different orientation? If there is a method that some of you builders use, I haven't been able to find anything through google searches. I think a giant scale model, you could probably reach in behind the firewall and install different blind nuts. But on a 60 or 40 size model you hand probably won't fit. That means you might haft to cut the firewall off, somehow, make a new firewall, and then try and glue on another one. Cross your fingers because it might not hold right, since the wood can't interlock like it originally did.

Anyone that has experience with the Top Flite Corsair 60 who decided to change the engine mounting orientation is who I would prefer to hear from the most. Secondly would be people who has built 40 to 60 size models, mounted the engine and then later on realized that the way the manufacture suggested didn't workout so well.

Note the Engine Muffler System has been changed to what you see in the picture. The reason it was changed is because the Muffler System suggested by top flite is only for a 60 size engine. The engine in my picture is a 91