Your 2 opposite poles, covered by three hinges. Flight.

Separates the aft ellipsoidal dome section. A ring frame at the onorbit station. 4-51 Caution-and-warning system.—The caution- and-warning (C&W) system alerts the Orbiter onboard computers and * STAR TRACKERS FLIGHT DECK Manual controls Indicators Displays Inertial optical unit DRIVERS AND ACTUATORS Aerosurfaces.