Forces and coefficients

Dynamic pressure, the lift/drag decomposition and dimensionless force coefficients.

Bernoulli’s dynamic pressure and the pitot-static airspeed

Bernoulli's dynamic pressure and the pitot-static airspeed

Cayley’s separation of lift and drag in level flight

Cayley's separation of lift and drag in level flight

Lilienthal’s lift and drag coefficients and the polar diagram

Lilienthal's lift and drag coefficients and the polar diagram

The Wright brothers, Smeaton’s coefficient and the stall speed

The Wright brothers, Smeaton's coefficient and the stall speed