O1 BTSTO Orbiter & Booster

The Orbiter moves to dock with the booster.

O2 BTSTO Orbiter & Booster

O3 BTSTO Orbiter & Booster

Now docked, the orbiter is clamped inside the well in the base of the booster, and retracts its undercarriage.

O4 BTSTO Orbiter & Booster

The Booster/Orbiter combination takes off.

O5 BTSTO Orbiter & Booster

Booster/Orbiter inflight, gaining altidude for release of the orbiter.

O6 BTSTO Orbiter & Booster

The Booster lights its SSME and pitches up to 33 degrees.

O7 BTSTO Orbiter & Booster

The Orbiter climbs away from the booster.

O8 BTSTO Orbiter & Booster

The Orbiter accelerates away as the orbiter prepares to return to base.