Here is a photo I forgot to include in my original post. This is the Ryobi 31 shown mounted in the Rascal 110 as I was rebuiulding sections of the plane where the original owner inflicted damage upon it. It worked out good for me when I recieved the plane because the firewall was destroyed. This allowed me to change the firewall location when I rebuilt it accomadate the heavier Ryobi. I ended up setting the firewall about 2 inches back from the stock location. This proved to work out fantastic because the plane balanced perfect when finished and the cowl has no unsightly cuts. Worked out very well and the Ryobi powers the plane good and scale like.