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EFIS Conflict w Panel supports

caryr

Well Known Member
Patron
I am sure I am not covering new territory here because a lot of folks have put 10 inch EFIS displays in a -7 panel.

The support I have a issue with, F-745L, is one that braces the panel to the next more forward partial bulkhead. I guess it would be called a sub panel. It rivets to the most rearward front cowl and has the hinge points for the tip up canopy on the forward side.

There is a pair of screws to strengthen the instrument panel that are located between the double rows of 3 1/8" instrument holes.

The EFIS wants to fit in the instrument panel and conflict with the support

The part number is F-745L

My -7 was built before the days of glass panel displays.

I think its time for me to upgrade.

Who has been here before?

thanks
 
I cut 80% of that brace out to fit a 10" EFIS. Just a bit remaining on the bottom to support the panel. Reinforced that remaining brace. Then made a custom bent strap from 1/8" or 3/16" Al that goes from the top of the panel back to the sub-panel with reinforcement, tieing it to the area where the original support was rivetted in. Very solid; It is strong enough that I can now use the panel to help get in and out of the plane.

You don't need top to bottom panel suppot, as the EFIS now provides that rigidity. You just need support on the top and bottom of the panel that is tied into the sub-panel.

Larry
 
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I cut 80% of that brace out to fit a 10" EFIS. Just a bit remaining on the bottom to support the panel. Reinforced that remaining brace. Then made a custom bent strap from 1/8" or 3/16" Al that goes from the top of the panel back to the sub-panel with reinforcement, tieing it to the area where the original support was rivetted in. Very solid; It is strong enough that I can now use the panel to help get in and out of the plane.

You don't need top to bottom panel suppot, as the EFIS now provides that rigidity. You just need support on the top and bottom of the panel that is tied into the sub-panel.

Larry

+1. I did the same...just notched the brace for my Dynon 10" EFIS and reinforced it around the notch. Still had room to attach it at the top and bottom to the panel. Very solid.
 
I flush cut the aft section (subpanel to panel) and moved them in and reattached to subpanel with new angle. Many builders have done this. Simple to do. I moved mine over something like 5.5 inches inboard on each side. Gives abut 8" in the center for a stack.

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