The Whitcomb area rule, named after a US National Advisory Committee for Aeronautics (NACA) engineer Richard Whitcomb and also called the transonic area rule, is a design procedure used to reduce an aircraft's drag at transonic speeds which occur between about Mach 0.75 and 1.2. For supersonic speeds a different procedure called the supersonic area rule, developed by NACA aerodynamicist Robert Jones, is used.
The Whitcomb area rule, named after a US National Advisory Committee for Aeronautics (NACA) engineer Richard Whitcomb and also called the transonic area rule, is a design procedure used to reduce an aircraft's drag at transonic speeds which occur between about Mach 0.75 and 1.2. For supersonic speeds a different procedure called the supersonic area rule, developed by NACA aerodynamicist Robert Jones, is used.
Source: Wikipedia "Area rule" · CC BY-SA 4.0
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