Aviation Photo #0898223 Rockwell Space Shuttle - NASA

10:39:10 AM. STS-114 "Return to Flight" Mission begins the Roll Maneuver. Note the increadibly long flame from the Solid Rocket Boosters which provide 71.4\% of the power ( 3,300,000 pounds thrust each). The vehicle begins a combined roll, pitch and yaw maneuver that positions the orbiter head down, with wings level and aligned with the launch pad. The orbiter flies upside down during the ascent phase. This orientation, together with trajectory shaping, establishes a trim angle of attack favorable for aerodynamic loads and crew ground reference.