scsmith
Well Known Member
Dave,
This is also a good time to fabricate a radius "bump" along the bottom edge of the firewall where it intersects the belly. I see there is an engine mount tube that traverses there, which complicates things. I would try to make a fairing that fits over that.
Take a look at a couple of recent threads on this subject for some pictures and ideas. In your case, I think a 1.5" radius semicircle that fairs tangent to the belly skin would be great. This will make a huge difference in cooling flow exit velocity and uniformity. It is really worth the trouble.
This is also a good time to fabricate a radius "bump" along the bottom edge of the firewall where it intersects the belly. I see there is an engine mount tube that traverses there, which complicates things. I would try to make a fairing that fits over that.
Take a look at a couple of recent threads on this subject for some pictures and ideas. In your case, I think a 1.5" radius semicircle that fairs tangent to the belly skin would be great. This will make a huge difference in cooling flow exit velocity and uniformity. It is really worth the trouble.