The rocket uses a half-million gallons of fuel ... "Hydrogen is lighter than air, so after it flows through the engine and the flame trench, it then rises," Bruno said. After the main fuel load ...

The rockets are clamped to the launchpad right ... so to protect it from the hot exhaust it has in integrated flame trench. This was made from 1 inch steel plumbing components, and directs most ...

When there's a Rollover to the Vehicle Assembly Building (VAB) which is the Orbiter is lifted up and bolted to the Solid Rocket Boosters ... and the Flame Trench. The launch involved Lift Off ...