alpha 8 ex and ey wing (flachen) vectors - par-calc-alpha8.zip updated 23/8/2004

[ggunners]

To all FMS alpha8 .par file creators,

Markus Weinsch provided the general formulas for the ex and ey vectors for the wing surfaces (flachen) in an email to me on 8/17/2004. I've added the combined formula to the ".mqo measures" tab within the par-calc-alpha8.xls spreadsheet.

ex = A B C
ey = D E F
alpha = dihedral angle
beta = sweep angle

Left Wings:
A = COS(beta*PI/180)
B = -SIN(beta*PI/180)
C = 0
D = COS(alpha*PI/180) * SIN(beta*PI/180)
E = COS(alpha*PI/180) * COS(beta*PI/180)
F = SIN(alpha*PI/180)

Right Wings:
A = COS(beta*PI/180)
B = SIN(beta*PI/180)
C = 0
D = COS(alpha*PI/180) * -SIN(beta*PI/180)
E = COS(alpha*PI/180) * COS(beta*PI/180)
F = -SIN(alpha*PI/180)

With the new combined formulas that Markus provided the other two dedicated tables are now not required so they've
been dropped from the .

-- Gary