The last couple of days I have been working on the canopy release mechanism, a.k.a. canopy jettison system.
When complete, there will be a handle in the instrument panel, that when pulled will release the canopy at the forward hinge points. Many builders skip this system, but I decided to include it.
First I had to align and drill the hinge block assemblies to the forward ribs. Using the top bolt as guide, I clamped them in place.
Then drill the lower holes through the thin block, marking the alu spacer.
Then removed them, and completed the holes in the drill press.
Finally I put them back in, installed the skin temporary to align the small ribs, then drill the holes through these as well.
I also removed the F-697 subpanel reinforcement, and fitted the canopy release bellcrank block.
It is installed with 2 nutplates.
Riveted it in place…
…then clecoed the centre subpanel back in.
Next up was the rods that connects the canopy hinge pins to the release bellcrank. I used a cutting disc in my drill press, worked like a charm! 🙂
To make the wide gap in the hinge pin ends, I simply rotated the tubes, and made another cut.
To make room for the tubes, I had to modify F-697 subpanel reinforcement I little.
Also had to make a slot in the F-643 channel.
Not too bad.. 🙂