The panel's final configuration is nearing, and I need some more space soI added a subpanel that will hold the switches, the engine controls and some small items.
Here the U channel has been cut for the vents.

At the end of last visit I discovered that if I wanted the aircraft to be classified as aerobatic, I would have to install the original jettison mechanism. So I modified my modification to built as per plans.
To do this I had to uninstall the vertical handle, install the lever and the handle.
This is the lever.



The handle and the return spring.



And the handle seen from the cabin side.



I then installed a paper copy of the panel. Some more little tweaking to be done.

Today, I begun by some small tasks on the cowls. The scoop has to be connected to the airbox. This is done by building a small fiberglass tunnel. And the mold for the tunnel is done by glueing some fome to the cowl. As soon as the glue has set, I'll open up the foam.




I also modified the oil filler door by adding small shims under the latches, as the gap was a bit too small.

Another day working only on the air filter box, and some suprises on the way.
First I begin by doing what I should have done yesterday, i.e make a template for the upper plate.
Here it is on the right with the original plate on the left. It show that the holes for the bolts are shiffted to the right.



Once all installed on the plane, there is a problem. As the bolts are no more at the center of the box, they are no more at the center of the filter. The top of the filter interfers with the two left bolts. Some builders have to modify their filter due to an interference with the carburetor, this technique is described so I will apply it : cut the top of the filter and the creat a new seal with some proseal.



Before cutting the filter, I verify that all the parts fit and that the gap with the moving parts are wide enough.
This is the mixture control arm with the hardware nedded to attach the cable. All looks good but I will have to check again the gap between the bolt and the cowl once everything is in the final position.



Then I make the cuts at the front of the box. The box is too long and would hinder the lower cowl removal. The picture shows the plate allready cut, but the cut on the fiberglass part is still to be done.



Then it's time to cut the top of the air filter. The picture shows the two cuts, and the good surprise is that the seal is still a seal, I didnit to cut completely through it so I won't have to redo the seal.



Then I install the alternate air door. This door can only be opened in flight to ensure air supply to the engine should the main air supply be blocked (by snow, ice or any other object). The opening will draw unfiltered air from the engine compartment.
Once open, it is supposed to be left that way and only closed on the ground



And to finish, I riveted the lower plate to the air box. The rivets used are small round head rivets used for the first time since the beginning of the building.
I now have to cut the upper plate according to the template and extend the scoop on the lower cowl toward the front of the air box.

I new that the airbox would prove tricky to install and it was the case. As I'm installing an engine combination (parrallel valve 180hp with vertical induction injection) that Vans does not sell, the airbow has to be adapted.
The installation begins sith the bolting of a flat part to the injection block, then another part (with the flanges) is bolted to the first part. The second part has to be aligned horizontally end vertically with the scoop on the cowl.
The picture shows the two parts and the injection block.



And this is the scoop showing the correctly aligned part.



Then small clips that will hold the airfilter are installed on the lower part. One of the clips is not riveted its position will interfere with the mixture arm on the injection block.



The picture shows the airbox installed, the mixture lever has been removed and it'svtravel drawn on the box.



The kit includes a small part for my type of installation (quit cool on Vans side as they don't support my configuration).
The small part is to be riveted to the lower part to allow for full travel of the mixture lever.



But I still have a problem the cutout is not deep enough.
The solution is to fabricate a new upper plate with holes moved 3/4" to move the plate to the opposite side of the lever.



The cutting proved easy but I somehow managed to wrongly drill the holes for the lower plate and the alignment is not very good. I'll redo the plate as soon as I can get new raw material.