Time line released by NTSB
Release from WhiteKnightTwo at 10:07:19 (local time).
10:07:21 Engine Start
10:07:29 Speed 0.94 Mach
10:07:31 Speed 1.02 Mach
At that point the co-pilot moved the feather control from locked to unlocked.
A second step, to engage the feather, was not taken.
10:07:34 The feather began to deploy, telemetry data stops.
The flight plan indicated the feather should be unlocked at Mach 1.4.
Last edited by Niner Lima Charlie; 5th Nov 2014 at 14:02.