PFR - Aerospace Engineering Sciences Senior Design Projects ...

Project Final Report – CUDBF April 30 th , 2009
ASEN 4028: Aerospace Senior Projects
unfold properly for this aircraft to be successful. High tolerances need to be implemented when
joining the wing tip to the main wing.
11.3.1 Folding Wingtip Assembly
The wing tip mounts are glued into the foam and balsa skinned main wings. The hinge is then
screwed into the wing tip spar and glued into the wing tip. The hinge is then screwed into the
wing tip mount. The rubber bushings are also glued into the adjoining surfaces. This assembly
is shown in Figure 98.
Figure 98: Folding Wingtip Assembly
11.3.2 Landing Gear Assembly
The landing gear assembly consists of the nose gear assembly and the left and right main gear
assemblies. The main landing gear assembly consists of an quarter inch aluminum 2024 strut
screwed to the main gear mount with steel straps. The screws screw into tee nuts in the main
gear mount. The left and right main gear can be constructed in parallel. The strut is screwed the
main gear mount after the wing is skinned. The main wheels are secured on the aluminum strut
with ¼” collets. The nose gear assembly is made up of several parts to provide for the steering
of the aircraft on the ground. It is mounted inside of the wing just behind the battery box. The
nose gear assembly is shown in Figure 99 and the main landing gear assembly is shown in
Figure 100.
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