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Based on aerodynamics and fuel efficiency design. Nasa and Boeing are studying a concept design named Transonic Truss-Braced Wing (TTBW), belonging to the Subsonic Ultra Green Aircraft Research program. Boeing has a configuration with an outstanding aerodynamic flying within Mach 0.70 – 0.80 (Transonic), a competitive speed similar to airliners. The wing plane comprises a […]

COFFIN CORNER- When the aircraft’s stall speed meets the critical Mach number

In aviation, coffin corner (or Q corner) refers to the point at which the Flight Boundary is defined by when a high incidence stall intersects with that defined by the critical Mach number. Before we dig further, what is stall and what exactly causes it? STALL Stall is defined as a sudden reduction in the lift generated […]