UAS Advanced Development:
In 1990 the Broomstick vehicle concept was developed in response to a need for a long endurance aircraft with unique characteristics. It used a 50% thick airfoil in an unswept flying wing configuration with no dihedral and with all systems internal to the wing. The boundary layer control (BLC) needed by the thick section is integrated with a jet flap propulsion and aerodynamic control system. These are the first known flights of such an aircraft.
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