Hi John; I have on several occasions made custom-stroke aircylinders for canopy operation, but seldom knew what mechanism they used for the connection. One of the problems is that the canopy moves up and away from the fuse as it moves back. I'll look in my files and see if I have anything of value on it. It seems like one person did send some info, but that was 8 or 10 years ago!! In the drawing on the site, it is very indistinct, at least on my system, and doesn't seem to be complete. The close-up of the track look a lot like my canopy track. One fellow mentioned a web site for a P-40, but what is the web site??? My track is shown on Jerry Bates plans. Lee Robinson