Hmmmm, should have done a bit more in-depth research before rushing to purchase a motor, just trusted the description given on the web site! My blades are 36" length each, three of and I do not think that they will ever realistically spin to 625rpm. This size seemed larger than others had made having done a trawl of others websites. Is there a golden rule or some basic figures to look for when chosing a motor? Think I might have to go back to the drawing board regarding the motor and call that lesson learnt. I have heard of Ametek motors but again they seem to come in all shapes and sizes so am a bit ignorant of which sort is best suited. [ Parent ]