Is that GRASS - real grass? I forgot what it's like here in Colorado. Raised in N. Canton.

I had my 4Star60 out today. Just mounted a YS FZ 110 on the front - lordy, lordy - not "unlimited" vertical but darn near. Just a note for future builds. I use a Hayes AL60 or AS60 for my 60-sized planes (identical except that the AL is longer - thus the L - and uses the same firewall mount pattern. This allows me use the same engine-to-firewall mount pattern for an OS 61 FX, OS 91 FX, Saito 91, Super Tigre G-90 and the YS. A similar approach might work well for a 40-size plane using a smaller Hayes mount. The Hayes does require that you drill-n-tap the holes into the mount. Just a thought to file away.

Good flyin'!