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…