I was surprised when I saw it, as I'd always assumed that there was no 
sweep at all. As it turns out it's next to nothing but the spar is 
indeed straight, but the sweep at 25% chord is just a tad under 1° 
forward. When you look at the wing, the trailing edge tapers forward 
more than the leading edge tapers back. The aspect ratio for the outer 
wings is 6.4 and the wing taper ratio is 5.3. The main spar while 
straight does not travel equidistant along the chord line.
Check out this link. 
http://s12.photobucket.com/albums/a217/sarahjeanb/Peters/?action=view&current=MAC1.jpg
The spar is in green, the 25% chord line used to measure sweep in 
highlighted in yellow. The red line just to the front of the yellow line 
near the centreline of the aircraft denoted the station of the MAC from 
the firewall.
Cheers.
Pete.

Larry&Sallie Flesner wrote:
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> I think I'd check the software if I were you.  The forward spar is 
> perfectly straight from tip to tip.  The wing tappers from the 48 
> inch rib to the 36 inch rib at the tip.  I'd have to look at the 
> airplane to be sure but I think my plans built wings tapper slightly 
> aft from the attach point to the tip or at most, straight.
>
> Larry Flesner




Reply via email to