Paul,
I like your new mainfold idea. I was wondering, since you are coming up for the airshow at Arlington, if you could pick me up a 16 inch section of that
extrusion.I'd also like to take you up on that offer to plot out the curves for an engine cowl. My RV-4 has a few modifications- the firewall is 1" taller,
I'd like to make it 2" lower, the spinner is 16" dia and is 45 inches in front of the firewall. Thrust line is the same. I can get you a full size drawing of
the firewall if you come up for the airshow. Let me know if you need anything when you come up. Maybe a trip to Boeing Surplus?
Let me know.

Brian Trubee

Sure but I will ship it instead. Send me your shipping address by private email.
Anybody else want some of this 4 by 4 by 1/8 wall aluminum extrusion? 
Kind of hard to go in there and order only 14 inches ($3.50 worth plus cutting) :) 
Will make great coolant pressure bottles too.

BTW 14 inch works better as it clears Tracy Crook's PSRU adapter plate better.
I moved the butterfly two inches back.

Why is the firewall 1" taller? Did you modify the whole front of the
fuse on the RV-4? Strange :)

Wow 45 inches! That a lot. Did you move the engine forward?


Paul Lamar
 
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