I've Been reading these 109 view threads for months, and have thrown some cylindars together to approximate what we see in ah, versus photographs.
This image shows ortho view looking down on the struts. The uprights are parallel, slightly angled back.
This is an apporximation of the image that Pofessor Fate has given us at the top of the thread. Simulating a 35mm lens (no zoom or anything). You can see that the front uprights come together slightly, but not enough for concern. You are looking down into what would be the cockpit, just behind and above the horizontal bars.
This is the type of view we have in AH. Taken about where the pilot sits. The field of view is 90 degrees (opposed to about 50 in the 35mm shot). You can see that the uprights are coming together quite a bit at the bottom.
The only way to get rid of this illusion is to make the uprights perpendicular to the rest of the frame. Which would skew the external view slightly.
Note that I didn't model this to scale, but hould be a good representation anyhow.

[edit]
ok, pictures should work now.

[ 06-17-2001: Message edited by: Starbird ]