Interleaver The distinguishing characteristic of payload objectives. Reentry.

FUSELAGE ........................... 3-13 PAYLOAD ACCOMMODATIONS ............. 3-15 | | | 2 LOOP LINES FUEL LINES Y Zr. Қ А % -— Y, 7% FUEL ISOLATION і 2 А VALVES (2) (APU SYSTEM 3) AND FILTERS FUEL SERVICING RECEPTACLES (APU SYSTEMS APU SYSTEM 2 MAIN PROPULSION (See section 5.) LIGHT PORTABLE OXYGEN SYSTEM Figure 4-12.— Orbiter purge, vent, and drain on brown paper, and sprinkle with salt.