PFR - Aerospace Engineering Sciences Senior Design Projects ...

Project Final Report – CUDBF April 30 th , 2009
ASEN 4028: Aerospace Senior Projects
11.2 Wing Sub-Assembly
The wing sub-assembly consists of the main wing assembly and the vertical assembly.
11.2.1 Wing Assembly
The main wing assembly is composed of a core of 1pcf EPS foam. The foam cores will be
outsourced due to the geometric twist of the wing. This will ensure that the foam cores are the
correct dimensions. The balsa motor mount blocks are then glued into the foam using epoxy.
Also, the main gear mount plywood mount will be glued into the core before sheeting. The foam
core will then skinned with 1/32” light weight balsa. The control surfaces will also be sheeted
with 1/32” light weight balsa after a balsa insert is glued into the foam for the control horn. The
ailerons and elevators will then be attached to the wing halves. Both wing halves will be
constructed in parallel and can be seen below in Figure 95.
Figure 95: Main Wing Assembly
11.2.2 Vertical Tail Assembly
The foam cores for the verticals will also be outsourced in order to achieve the desired
tolerances. The verticals and rudders will be sheeted the same way as previously mentioned.
After they are sheeted, the carbon support tubes will be inserted and glued in place. These will
then be glued to the balsa vertical spar mount. The rudders will then be attached to each winglet.
Both vertical tails will be constructed in parallel. A vertical tail can be seen in Figure 96.
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