PFR - Aerospace Engineering Sciences Senior Design Projects ...

Project Final Report – CUDBF April 30 th , 2009
ASEN 4028: Aerospace Senior Projects
11.5 Release Mechanism Sub- Assembly
Figure 102: Battery Assembly
11.5.1 Wing Store Release Mechanism
The main components of this system are the release servo, the Tru-Fire triggers, the metal plates,
the pull pins, and the rails. This assembly is shown below in Figure 103. The wing store release
mechanism is installed into the wing tip after it is sheeted but before the wing tip spar is glued
into place. This allows for proper alignment of the two components into the wing tip. The
mechanism locations are described in Section 8 with the key points being that their placement
was measured to keep the centerline of the inboard wing store 24 1/4” from the centerline of the
aircraft and each store 6 1/8 “ apart to meet competition based design requirements. The rear
pylon location is reinforced and measured to be ½” from the rear of the wing to avoid the rocket
fins from interfering with the ailerons. The mechanisms are surrounded by tape during
construction to prevent glue from the balsa skin from with and seizing the mechanisms and
servo.
121