radial

WWII Pratt & Whitney R-985 Wasp engine manuals - overhaul manual, maintenance manual & IPC, which was used on North American T-6, sorted out from public websites, such as scibd.com, etc., sharing for interest freely with no profit. Please download the following 3 pdf attachments:

Reading some replies on the top 3 engines of 1940 thread i came out with this question i try to help with a list of 9 cylinders radial engined fighters, i hope have not miss many ;) PZL P.7 [Bristol Jupiter] (Polish Campaign '39) PZL P.11 [Bristol Mercury, polish, Gnome Rhone 9k rumenian]...

Here is a pretty good demo of how a radial engine works: View: https://www.youtube.com/watch?v=HGKXdYCksAQ Doesn't explain everything, but is pretty good ...

Here's one you won't see very often ... I think the radial Hawk was the best of the Hawks, but am not as fond of the Blackburn.

Any advantages with the Wright cyclone 1820 over Pratt Whitney 1830? Seems the 1830 would be more complicated and expensive for similar horsepower.

:oThere doesn't seem to be much on this engine anywhere, so i thought it'd be a good 1st post to put up this page in Graham Whites new book on the corncob radial. I was quite surprized to see this high quality rear oblique of the illusive R-4090. I'd still like to find out much more about this...