Get an in-depth look at XB-1 Flight 7 with Chief Flight Test Engineer Nick Sheryka—and experience Chief Test Pilot Tristan “Geppetto” Brandenburg’s view from the cockpit. Nick explains Flutter Excitation Tests (FES), a series of tests that vibrate the entire airplane, as well as cockpit pressurization tests. These tests ensure that XB-1 can safely ascend to 30,000 feet, the altitude it will fly at supersonic speeds. The flight path during Flight 7 took XB-1 over Naval Air Weapons Station China L