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Author Topic: US Pratt & Whitney/Curtiss-Wright SST Engines  (Read 11471 times)

Offline blackkite

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Offline blackkite

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Re: US Pratt & Whitney/Curtiss-Wright SST Engines
« Reply #16 on: November 15, 2013, 09:53:36 pm »

Offline charleybarley

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Re: US Pratt & Whitney/Curtiss-Wright SST Engines
« Reply #17 on: November 16, 2013, 04:27:24 pm »
Quote
Key technology of this engine was variable area turbine nozzle.
Is this technology same as variable angle of attack turbine inlet stator?

I guess the technology would much more difficult for the variable AoA stator but the end result basically the same, ie change in area, although the TJ60 looks a very crude way to change area. Also the blade is cooled but the blockage flap doesn't seem to be.
The TJ60 variable turbine is the gas gen turbine and very hot.
The only variable turbine stators I have read about are for power turbines (marine, industrial) so are somewhat cooler.


Online George Allegrezza

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Re: US Pratt & Whitney/Curtiss-Wright SST Engines
« Reply #18 on: November 16, 2013, 05:30:41 pm »
Hi! P&W JT-11- F4 SST turbofan engine.


P&W submitted a duct-burning turbofan design for the for the SST, the JTF17.  It was designed about a decade after the J91, which was the Pratt B-70 candidate engine and the direct ancestor of the original Navy J58, the J58-P-2.  The JTF17 had about double the mass flow of the J58.   

Offline blackkite

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Re: US Pratt & Whitney/Curtiss-Wright SST Engines
« Reply #19 on: November 17, 2013, 01:02:54 am »
Thank you gentlemen! Nice informations. :)

Offline blackkite

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Re: US Pratt & Whitney/Curtiss-Wright SST Engines
« Reply #20 on: November 18, 2013, 03:35:59 am »
Hi! TJ60 from Curtiss Wright document. I will post all of document. Please enjoy.
DBTF means duct burning turbo fan engine.
« Last Edit: November 18, 2013, 03:41:22 am by blackkite »

Offline flateric

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« Last Edit: December 15, 2018, 04:05:55 pm by flateric »
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