Stratolaunch, the air-launch venture created by Microsoft co-founder Paul Allen a decade ago, successfully conducted a full test of the landing gear on its mammoth Roc carrier aircraft today.
Today’s outing at California’s Mojave Air and Space Port was the fourth test flight for the plane, which is named after a mythical giant bird and ranks as the world’s largest aircraft by wingspan. Its 385-foot spread is more than half again as wide as the wings of a Boeing 747.
Allen never got to see Roc take to the air: He died in 2018 at the age of 65, just months before the plane’s first flight. But under new ownership, Stratolaunch is following through on Allen’s efforts to develop the plane as a flying launch pad.
A month ago, Stratolaunch’s test pilots retracted and extended the plane’s left mid-main landing gear. Today’s follow-up test validated full landing gear operations, including door functionality and alternate gear extension. Pilots also evaluated Roc’s general performance during a flight that reached an altitude of 16,000 feet and lasted for an hour and 43 minutes.