Aces High Bulletin Board

General Forums => The O' Club => Topic started by: Nypsy on July 30, 2014, 06:21:51 AM

Title: P&W R-2800 supercharged or turbocharged in the Hellcat?
Post by: Nypsy on July 30, 2014, 06:21:51 AM
I was sure in its application in the Hellcat the R-2800 was turbocharged but I can find no references to confirm that.
Some sources describe it as being turbo-supercharged.  :headscratch:
Title: Re: P&W R-2800 supercharged or turbocharged in the Hellcat?
Post by: Cthulhu on July 30, 2014, 09:36:51 AM
Supercharged

(http://i1292.photobucket.com/albums/b570/happyfluffycthulhu/Mobile%20Uploads/F6F_zpsrdi3hp4c.gif)
Title: Re: P&W R-2800 supercharged or turbocharged in the Hellcat?
Post by: Kenne on July 30, 2014, 12:08:57 PM
for fighters I believe only the 47 n 38 had turbos...

 :noid
Title: Re: P&W R-2800 supercharged or turbocharged in the Hellcat?
Post by: MiloMorai on July 30, 2014, 12:26:14 PM
XF6F-2 (66244), an F6F-3 converted to use a Wright R-2600-15, fitted with a Birman manufactured mixed-flow turbocharger, which was later replaced by a Pratt & Whitney R-2800-21, also fitted with a Birman turbocharger.[31] The turbochargers proved to be unreliable on both engines, while performance improvements were marginal.
Title: Re: P&W R-2800 supercharged or turbocharged in the Hellcat?
Post by: smoe on July 30, 2014, 08:18:19 PM
This sums it up a bit:

Quote
Turbochargers were originally known as turbosuperchargers when all forced induction devices were classified as superchargers. Nowadays the term "supercharger" is usually applied to only mechanically driven forced induction devices.[4] The key difference between a turbocharger and a conventional supercharger is that the latter is mechanically driven by the engine, often through a belt connected to the crankshaft, whereas a turbocharger is powered by a turbine driven by the engine's exhaust gas. Compared to a mechanically driven supercharger, turbochargers tend to be more efficient, but less responsive. Twincharger refers to an engine with both a supercharger and a turbocharger.

Source: http://en.wikipedia.org/wiki/Turbocharger (http://en.wikipedia.org/wiki/Turbocharger)