
WEST PALM BEACH, Fla. — After three test flights, Sikorsky and Boeing are gathering more data from the ground-based propulsion system test bed (PSTB) before it returns to the air, according to Sikorsky Vice President of Innovation Chris Van Buiten. “We’re thrilled with the data we’ve seen out of ground effect,” Van Buiten said June 24 during a media visit to Sikorsky’s test flight facility here. “Hover looks good.” One Sikorsky and one Boeing pilot have sat side-by-side in Defiant’s…