Airplane Fuselage-Wing Cross Section Equations and References

[armin11]

hi guys,
I was wondering what is the equation of cross section between fuselage and wing of the below airplanes:antonov 140 , B-707 , cessna-210 , cessna citation.
Can anyone help?a book or a refrence or whatever you have

 

[mp3car]

Equation of cross section between fuselage and wing? Can you rephrase that? Also, there are more than one model of the citation...

 

[armin11]

There is a bulkhead between the wing and fuselage,a little closer to fuselage from bulkhead is supposed the nedeed region that is almost like the bulkhead I think.like the photo that when airliners want to show how the seating arrangement are in a row in their airplane this cross section is viewed from front of the airplane.we should derive the equation for the exterior part of this cross section using the hand calculating techniques for finding conic sections with two points and two slopes and a user interface point that makes the curvature.