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In Pull – down maneuver, turn radius R = V^2/g(n+1)

V – Free stream velocity of air in m/s

g – Acceleration due to gravity in m/s^2

n – Load factor

SI Unit is meter.

In Pull – down maneuver, Turn radius (R) is defined as the horizontal distance that an aircraft uses to turn. It varies as a function of bank angle, load factor, square of airspeed etc…