3-Piece 120

 

This wing should be agile, well-behaved and highly-performant[i] as well as being relatively easy to build very strongly.

 

The center section is 59” "plank" and the tips are 30.5 inches.

 

The trailing edge of the tip is raked forward to improve handling and has been kept straight to simplify aileron construction.  It was kept straight during the optimization process by hacking the code so that the sweep of the third panel was always proportionate to the sweep of the fourth panel.  Here’s what was entered, instead of a number, as the sweep of panel 3:

 

                                    =(B14-B13)/(B15-B13) * F15      

 

area:

954.725

 

 

 

 

 

 

 

AR:

15.08

 

 

 

 

 

 

 

av/mx Cl:

0.975

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INPUT AREA

 

 

 

 

number

Span location

 

Cord

 

Sweep

 

Twist

 

1 (Root)

0

 

9.4

 

0

 

0

[deg]

2

13

 

9.4

 

0

 

0

[deg]

3

29.5

 

8.7

 

0

 

0

[deg]

4

43

 

7.25

 

0.44262295

 

0

[deg]

5 (Tip)

60

 

4.3

 

1

 

0

[deg]

AOA:

10

[deg]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



[i]  The opposite of lowly-performant

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