Christopher Hart, acting chairman of the NTSB, which is investigating last week's crash of Virgin Galactic SpaceShipTwo, on Monday delivered his final press briefing on the initial stage of the investigation. In an earlier report, Hart had said copilot Michael Alsbury, who died in the crash, prematurely moved a lever that unlocked the "feathering" mechanism, which would release two fins to slow down the spacecraft. Hart clarified on Monday that it was not known whether Alsbury or copilot Peter Siebold had moved the feathering lever.NTSB Gives Last Press Briefing on SpaceShipTwo Crash Investigation
Christopher Hart, acting chairman of the NTSB, which is investigating last week's crash of Virgin Galactic SpaceShipTwo, on Monday delivered his final press briefing on the initial stage of the investigation. In an earlier report, Hart had said copilot Michael Alsbury, who died in the crash, prematurely moved a lever that unlocked the "feathering" mechanism, which would release two fins to slow down the spacecraft. Hart clarified on Monday that it was not known whether Alsbury or copilot Peter Siebold had moved the feathering lever.
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