Known as one of the largest living piston engines ever in aviation, this 28cylinder marvel was one of a kind in real working aircraft out there. Pratt & Whitney managed to get things right and achieved noteworthy success with it. Although it came too late to be used in the war, it proved useful even after. However, during development things would not go as easy and engineers had to think outside the box to finish this challenging assignment.

Time stamps
00:00 Intro
00:39 Purpose
01:31 The early development
02:23 Firing, angles and numbering
03:53 General design and materials
04:39 Challenges during development
05:03 Crankcase design
06:05 Head and valvetrain
06:38 Cooling
07:30 Large engine issues
08:01 Horsepower rating
08:25 Foreign potential rivals
09:07 Largest piston aircraft engine from the USA
09:26 Hughes aircraft
09:46 Final words

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This video is fair use under U.S. copyright law because it is transformative in nature, uses no more of the original than necessary and has no adverse effect on the market for the original work.

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