During the historic spaceflight of Sir Richard Branson in July, near the end of the burn of the VSS Unity spacecraft's engine, a red light appeared on a console. This alerted the crew to an "entry glide-cone warning." Pilots Dave Mackay and Mike Masucci faced a split-second decision: kill the rocket motor or take immediate action to address their trajectory problem.
This scenario is outlined in a new report by Nicholas Schmidle, a writer with more insight into Virgin Galactic than any other journalist, in The New Yorker. For his recently published book Test Gods, Schmidle had unparalleled access to Virgin Galactic and its pilots.
"I once sat in on a meeting, in 2015, during which the pilots on the July 11th mission and others discussed procedures for responding to an entry glide-cone warning," Schmidle wrote in his story, published Wednesday. "C. J. Sturckow, a former marine and NASA astronaut, said that a yellow light should 'scare the sh-- out of you,' because 'when it turns red it's gonna be too late.'"