Big piston engines
Power Recovery Turbine
"Parts" (mechanics joke) recovery turbines were used on the P&W R-4360-51 VDT (variable discharge turbine) intended for the B-36C but used on the YB-50C Superfortress 4,300 h.p. according to Wiki. The Wright engines also had them.
IanB-B
IanB-B
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The Shvetsov ASh-62 is in production under licence by WSK-PZL in Poland.
To quote Wikipedi:
The ASh-62 was a development of the Wright R-1820 Cyclone that had been built in Russia under licence as the Shvetsov M-25, the main improvements including a two-speed supercharger and a more efficient induction system. Power was increased from the Cyclone's 775 hp to 1,000 hp. First run in 1937, licenced versions are still in production by WSK "PZL-Kalisz" in Poland as the ASz-62 (as of 2007). The Ash-62 was also produced in China. It is estimated that 40,361 were produced in the USSR.
Polish-built ASz-62IR engines are compatible with FAR-33 requirements. Further developments in Poland are the K9-AA, K9-BA and K9-BB engines, with take-off power of 1178 hp (860 kW), indicated power 698 kW.
To quote Wikipedi:
The ASh-62 was a development of the Wright R-1820 Cyclone that had been built in Russia under licence as the Shvetsov M-25, the main improvements including a two-speed supercharger and a more efficient induction system. Power was increased from the Cyclone's 775 hp to 1,000 hp. First run in 1937, licenced versions are still in production by WSK "PZL-Kalisz" in Poland as the ASz-62 (as of 2007). The Ash-62 was also produced in China. It is estimated that 40,361 were produced in the USSR.
Polish-built ASz-62IR engines are compatible with FAR-33 requirements. Further developments in Poland are the K9-AA, K9-BA and K9-BB engines, with take-off power of 1178 hp (860 kW), indicated power 698 kW.
Thread Starter
Speaking as poster 1, part of the reason I asked the question on here rather than anywhere else was because I knew I'd get a lot of additional and interesting if not strictly pertinent facts. Such as the story of the XR-7755.
The Lycoming IO720 variants are what spring to mind in the GA Avgas world and I have fond memories of the New Zealand Fletcher & a few lovely Commanche 400s that were popular in Australia in the 60s, 70s and 80s. (Sadly, I was never able to fly either of these types, but those who did loved them). I wonder what is available in emerging automotive conversions (Chevs) and Diesal engines?
Dr J, Exactly. This is a really interesting, and enjoyable, thread and the opening question at least has a chance of being answered.
C2j, I guess you might be right about post # 2. Maybe. If that's what the SOPs require. But this is Pprune not a peer reviewed journal and what you have just experienced is known as "Thread Drift", which brings nuance, occasional annoyance and sometimes a smile to these forums.
The Original Post of this Antipodean thread from Long ago has since changed YHMB to the correct YMHB. It's a fine example of Thread Drift.
Dr J, Exactly. This is a really interesting, and enjoyable, thread and the opening question at least has a chance of being answered.
C2j, I guess you might be right about post # 2. Maybe. If that's what the SOPs require. But this is Pprune not a peer reviewed journal and what you have just experienced is known as "Thread Drift", which brings nuance, occasional annoyance and sometimes a smile to these forums.
The Original Post of this Antipodean thread from Long ago has since changed YHMB to the correct YMHB. It's a fine example of Thread Drift.
Last edited by pithblot; 8th May 2015 at 02:12. Reason: My colleague is not a pier
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A while back, I saw an article (with pix), which, of course, I can't find now,
about a chap in the States who'd created a double P&W R4360.
He'd coupled two Wasp Majors together in tandem.
It runs, apparently (but for how long, I wonder?).
Some people need something to keep them off the streets, though.
about a chap in the States who'd created a double P&W R4360.
He'd coupled two Wasp Majors together in tandem.
It runs, apparently (but for how long, I wonder?).
Some people need something to keep them off the streets, though.
Gnome de PPRuNe
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I've seen the R4360 powered Sea Fury "Dreadnaught" and F2G Corsair flying in the US - Dreadnaught was racing at Reno - and they both sound magnificent.
Not the fastest but probably the most powerful single engined aircraft flying these days?
Nowt wrong with thread drift if it's along the right lines!
Not the fastest but probably the most powerful single engined aircraft flying these days?
Nowt wrong with thread drift if it's along the right lines!