Over three days I worked this out. The hinge placement I’ve made positioned per plans. For the latches I decided the safety catch would go 2″ forwards to match where my seat back is. In other words the plans placement works.

The catch in the middle falls roughly where the rollover is I’ve made that hardpoint a bit wider than needed so I can line it up with an existing screw hole. It looks like I’ll be moving my air vent and modifying the heater cover to allow for the canopy latch pushrods. I missed this earlier in the build.

The rear latch I’ve moved to 11″ from the end of the canopy, like plans, but as my canopy is a little longer it’s a different F.S. (Fuselage station)

The front latch I wanted well forward but after digging out the foam I was right over the canopy line as it curves. I had to move it back a couple of inches. I filled in the hole with pour foam. At least that was easy.

The holes were easy to route out using the dremel and a permagrit bit. I had 8 holes done in about 15 minutes.

I cleaned things up for the bare glass inside bond.

Here’s the front three points. Well two really I had the one moved back. I filled all the 8 holes with glass and flox per plans. Initially I counted the piles but it was soon clear I’d be going way over the plans minimum of 15. I used up a lot of BID scraps I had which probably were too small for anything else.

It took ages to fill this things up. My hardpoints are probably deeper than plans canopy rails. I’ve left my rails quite chunky in the hope that the canopy will be more stable. I way overfilled the holes to ensure I’d fill up the middle.

Pretty messy eh? I’m not used to wet layups.

All done for now.

Here was are at the front with my mistake hole filled in with foam.

A final pic after the big clean up. I used the vibrating saw to grind all the hardpoints flat with the foam tops as you see in the pics. It took a bit of grinding! From here they need to be lowered slightly on one side for the hings thickness and the other for some aluminium angle. I’ll do that with a router. Today’s mission was to get it all level. My new wider hinges are nearly here from the USA and meanwhile tomorrow I’ll work on the turtleback.