[8 Builder]

Lets try this again. Having trouble attaching the right picture.
This picture shows a piece of plywood with a one and 7/16 inch radius holding my air ramp in a position according to plans page 36. Obviously, this does not put the flange in a position to rivet it to the firewall. Does the builder bend this radius further to put the flange in a position flat against the firewall? Is there a prescribed dimension for the flange to fall against the firewall that I am missing?

http://i59.tinypic.com/6seupx.jpg

 

[Don Patrick]

Never seen that before.

Have a perfect curve for the cooling ramp and never used any wood like you did. I clecoed the ramp to the firewall, final drilled and riveted.

No issues at all. Get rid of the wood and just cleco it to the prdrilled holes and move on.

Here is a shot from my log.

http://www.mykitlog.com/users/display_log.php?user=Don%20Patrick&project=820&category=7636&log=181645&row=28

Good luck!

 

[Berchmans]

Yes, just cleco the ramp in place, drill and rivet. The natural bend that occurs with the pre-bend of the ramp is sufficient.

 

[8 Builder]

Thanks guys- Just so it is clear; the plywood is just there as an example of the bend called for in the plans. Just for the picture. I will bend the ramp so the flange will fit flush and with a nice fair curve. As the saying goes, drill, deburr, cleo, rivet! Building on. Rich.