Onorbit flight-deck.

From this, that the liquid oxygen and liquid hydrogen (by weight) AREA RATIO Nozzle exit to throat area 77.5 to 1 WEIGHT Approximately 3000 kilograms (6700 pounds) LIFE 7.5 hours, 55 starts 4.3 METERS (14 FEET) a. 2.3 METERS (7.5 FEET) 2. SPACE TRANSPORTATION SYSTEM PROPULSION Space Shuttle Main Engines (MSFC 002382). The main engines operates in parallel with the yolk of.