In flight mechanics and aircraft engineering, the propeller diameter refers to the size or dimension of the circular area swept by the propeller blades during rotation. It is a critical parameter that directly influences the propeller’s performance and efficiency.
d=(v/n*j)
v: True airspeed (TAS) of the aircraft. or velocity
n: Rotational speed of the propeller in revolutions per minute (RPM). It represents how many times the propeller completes a full rotation in one minute.
j: Advance ratio