B-747 Trailing Vortices StudiesThe Boeing 747 used for wingtip vortex research flights sits on the ramp at NASA's Flight Research Center in Edwards,...In this 1974 NASA Flight Research Center (FRC) photograph, the two chase aircraft, a Learjet and a Cessna T-37, are...Two chase aircraft, a Learjet and a Cessna T-37, are shown in formation with a Boeing B-747 jetliner in this...In this 1974 NASA Flight Research Center photograph, a Boeing B-747 jetliner is shown taking part in the trailing wake...