The Spaceship Company Tier 1b

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Tier 1b's SpaceShipTwo spaceplane (central fuselage) attached to the White Knight Two carrier aircraft.

Tier 1b was the Scaled Composites internal company name of a mid-2000s program to develop a nine-passenger suborbital commercial human spaceflight platform.[1]

The Tier 1b program was intended to be an evolutionary development of Scaled Composites Tier One program, which developed the Ansari X-Prize-winning entry in the 2004 spaceflight demonstration contest held by the X-Prize Foundation.[1]

The principle hardware envisioned to be developed under the Tier 1b program were the White Knight Two carrier aircraft and the SpaceShipTwo suborbital spaceplane.[1][clarification needed]

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  1. ^ a b c "SpaceShipThree poised to follow if SS2 succeeds". Flight International (FlightGlobal). 23 August 2005. Retrieved 2008-01-25. 

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