Originally Posted by Mike_Then
So is that to say that if WWII fighters such as the F-4U, P-51. etc., had 2-bladed props they would have been even faster? Assuming ground clearance for the prop wasn't an issue of course.
No, because RPM and diameter are limited due to need to prevent the prop tips going supersonic. So the only option once you get to a certain power level is more blades, even though less blades are more efficient in terms of basic momentum theory.
This is not an issue on models due to much smaller props.