Boot cowling

[FFTravism]

I am trying to fab the boot cowling top piece between the instrument panel and firewall. In the manual they talk about the instrument panel being at a 90 to a line from the top of the panel to firewall. That would make it more then 8-10 degrees of tilt?

Do the tabs or angle pieces on the firewall and instrument panel get bend to allow the top piece to sit flat between the two points?

Thanks.

[David Swartzendruber]

I haven't gotten there yet, but I was planning to put flutes in the firewall angle as needed to allow the boot cowl to fit nicely. I'm interested to hear what other people have done.

[David Swartzendruber]

Just to clarify, the flutes would allow the angle to be bent to match the angle of the boot cowl.

[alaskabearhawk]

I removed the firewall flange, reworked it and riveted it back on.

http://www.mykitlog.com/users/display_log.php?user=yeeeha&project=527&category=10070&log=269533&row=20

http://www.mykitlog.com/users/display_log.php?user=yeeeha&project=527&category=3583&log=269534&row=104

[Mark Goldberg]

When we set up the boot cowl work at the factory, we set the instrument panels at 10 degrees tilt. That is a builder preference thing however. . Mark

[alaskabearhawk]

I finally understood the question. I set my panel at 8 deg, but you can set it at what you want. At the time I chose to rework the flange instead of doing flutes. There are a number of nut plates that are riveted to the firewall flange. At the time I had no idea where they would best fit, but it’s a 99.999% certainty that at least two places around the perimeter where I put a flute would be the the spot where I would want to put a nut plate!

http://www.mykitlog.com/users/display_log.php?user=yeeeha&project=527&category=10070&log=269535&row=19

[FFTravism]

Thanks for the examples. I made it to the shop this evening and was able to make the needed bends in the flange to get the right angles. I added a few very light flutes to keep the flange from buckling. I also checked my tilt and was right now 10 degrees.
Travis