Quote:
Originally Posted by MadBlaster
what about windmilling and internal friction /cylinder compression of engine? bmw801 only had 14 cyl. p47 had 18 cyl. so, maybe some inefficiency of 3 blade wide was offset by less internal friction in the 801 and that is why they went with 3 blade wide.  |
bf109k4 ：3-blade prop
spitfire xiv：4-blade prop even 5-blade
Both are liquid cooling engine.
btw，r2800 and bmw801 share almost same front area.