© 2005 - Bernard Burton DRAFT
10
Plane geometry parameters:
•
Wingspan
175
cm
•
Length 175
cm
•
Airfoil
E169
(14.5%)
•
Wings surface
119 dm²
•
Weight 6.5
Kg
(estimated)
•
Wing load
54 grs / dm² (estimated)
•
Top wing incidence:
0°
•
Bottom wing incidence:
0°
•
Elevator
incidence:
0°
•
Motor down trust angle:
0°
•
Motor right trust angle:
2°
Plane geometry alignment:
Step 1:
Align the bottom wing:
- Put the wing in place.
- Verify and adjust the wing position:
o
The distance between the trailing wing tip and the end of fuse must be the
symmetric for left and right wings.
o
The wing horizontal axis must be perpendicular (90°) with the vertical fuse
axis.
o
The wing incidence compared to the fuse axis = 0°
o
Drill the wing fixation holes in S9. Glue the screw fixing nut with 30’ epoxy.
o
Verify and eventually adjust again the alignments before the glue cures.
Step 2:
Align the elevator/rudder assembly:
- Fix the bottom wings with Nylon screws.
- Align the elevator/rudder assembly with the bottom wing:
o
The distance between the trailing wing tip and the trailing elevator tip must be
the symmetric for left and right.
o
The wing horizontal axis must be parallel with the elevator horizontal axis
o
The elevator incidence compared to the fuse axis = 0°
o
Glue the elevator/rudder assembly with 30’ epoxy
o
Verify and eventually adjust again the alignments before the glue cures.
Step 3:
Align the top wing:
- Screw the wings struts on the bottom wing with 3mm screws
- When the top wing is positioned on the fuse wing struts, the holes in the wing
fixations tabs should be perfectly aligned with the fixation holes on the wing struts
without any kind of constrains. This is the demonstration that your plane is build
straight.
- Fix the top wing with 3mm screws.
o
The distance between the trailing wing tip and the end of fuse must be the
symmetric for left and right wings.
o
The wing horizontal axis must be perpendicular (90°) with the vertical fuse
axis.
o
The top wing horizontal axis must be parallel with the bottom wing horizontal
axis
o
The wing incidence compared to the fuse axis = 0°
