Revcor 2C356 Ventilatore Lama 12 in Nuovo S1203-28, 6-008-SGL
The aluminum fan blade has 3 blades and a pitch of 28 degrees. The required HP for lower RPM is 1/70 hp and for higher RPM is 1/25 hp. The maximum RPM is 1725 and the propeller can attain a speed of 550 RPM.