Monday, August 12, 2024

Canopy Frame (3)

More work on the side rails.  Lots and lots of clamps on the right side to get everything lined up, then I drilled the rear piece of angle to the roll bar channel.  The one thing that bugs me is that Van's decided to put a tooling hole in the channel just at the edge of where one of the center holes gets drilled.  Once I upsize that hole to the size it needs to be for a bolt, I may have a figure 8 hole.  I'll cross that bridge when I come to it.  I may just be able to fill it with JB Weld or something.

The left side canopy rail is still giving me fits, but this time for a different reason.  The new part that Van's sent still doesn't fit up against the roll bar channel all that well, but I can work around that.  I decided I'll just put some epoxy putty in the space and clamp it for a while until it dries.  That'll make a nice, solid spacer to rivet through.  The problem I ran into tonight is the fact that the canopy rail doesn't follow the curve of the fuselage very well. I got the aft half in a decent shape, but the front half is giving me fits.  I tried fluting it like you would for most metal with a flange, but it's 1/16" thick material and the fluting pliers don't really move enough material to make a difference.  After an hour of squeezing until I was blue in the face, I still hadn't really budged the shape.  I'm taking a breather to think about it.  A metal shrinker would work, but most metal shrinkers won't even go up to 1/16" aluminum either.