Table 1: Equations of resistance torques generated by the centrifugal forces of propeller’s blades

Number Blades, n	Equation, Tct	Number of Blades Location
		Vertical, nv	Horizontal, nh	Angular, ni
Two		2	0	0
		0	2	0
Three		1	0	2
		0	1	2
Four		0	0	4
		2	2	0
Six		2	0	4
		0	2	4