Sea Fury Video Link

The first I learned of Sea Furies was the sound of Dreadnought in Reno. Really as much a feeling as a sound. Incomparable and just awesome. Thanks for the reminder!

looking at sleeve valve engine info, have you seen anything about 2-stroke versions? It struck me that that design has lots of advantages for steam power, but everything I've found has been around 4-stroke versions, and I expect that it's more than just moving the sleeve twice as fast :-)

The Japanese during WW2 usually measured manifold pressure in millimeters of mercury. It's a bit more complicated than that, but I'll cover it in my next video on a Japanese airplane. The compression ratio and boost calculations are in the video about German fuel and octane levels. I think it has a Ju88 and a fuel truck on the thumbnail.

Greg, any chance you could write a short bit on the Japanese style of air pressure reading in WWII? Also, for vehicular planning purposes, do you remember the video in which you talk about Compression ratios and boost level calculations, I remember it had something to do with a square root, planning ahead on a BP engine build.

Historically, material science is the primary governor of internal combustion advances. In a prior video you wondered aloud why piston rings were the thickness they were in a given timeframe. Material science.

Thanks for the response. I don't think the long format itself is a bad idea, just that sleeve valve technology is so complex and foundational that I would have preferred it separate. As you did with forced induction. You could have shoehorned that into a P47 episode, but both would have suffered.

The poppet valves got ahead of the sleeve valves due primarily to improvements in valve materials making them last longer and big advances in port design and valve timing.

In terms of views this is my second most successful video ever, so I'm not sure the long format single video was a bad idea. However I will say that my wife agrees with you and that it should have been two or even three videos.

Really great to see coverage on the sleeve valve technology. The topic is too vast to cover in any single video, but it's a start! I'd like to see more, to Steve's point, how did the pace of technology development compare to competing technologies? For all its merits, the unwavering pursuit of sleeve valve development nearly bankrupt two premier British companies. It's fascinating from several perspectives. Thanks Greg for the excellent video as always.

Honest feedback - this should have been two videos. One general sleeve-valve history/discussion and one Sea Fury. I know unqualified praise is the tone here, but we are veering into the unwatchable. One sleeve-valve point that seemed incomplete was a lack of explanation of the advances in poppet-valve engine technology that limited sleeve-valve adoption in the 20s. I rewound several times looking for this information. It may be there, but this video's pace did not hold my attention as you normally do. Overall, this has a 'got to publish it sometime' feel to it not present in your other (excellent) content.

I don't really follow the races, and I don't know what caused the jet crash this year.

Thanks Greg. I know you have a job and a life, but the wait was driving me crazy!!! But it was definitely worth it. Really enjoyed it....thanks again. Since it Seams like you follow the races, did the verify the cause of the crash yet? I was hearing "high g blackout". Truly a tragedy...