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Author Topic: PW F-119 and GE F-120  (Read 11220 times)

Offline flateric

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PW F-119 and GE F-120
« on: April 07, 2006, 05:04:53 pm »
Looking for color photos of PW F-119 and GE F-120 equipped with YF-23 nozzlez, AFAIK some photos were in AWST ca 1990-91. Thanks anyway:)
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Offline PaulMM (Overscan)

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Re: PW F-119 and GE F-120
« Reply #1 on: April 07, 2006, 05:09:20 pm »
I'll look through some books for you.

Paul.
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Offline PaulMM (Overscan)

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Re: PW F-119 and GE F-120
« Reply #2 on: April 07, 2006, 05:28:50 pm »
Nothing. I found nice pics of the YF119-PW-100L which is the Lockheed variant here:

http://www.enginehistory.org/usaf.htm

plus generic "2D vectoring" nozzle version.
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Offline flateric

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Re: PW F-119 and GE F-120
« Reply #3 on: April 08, 2006, 12:41:57 am »
Thanks, Paul, and there's not just YF-22 variant, YF-23 as well - that's PAV-1 in restoration facility in WPAFB Air Force Museum:
http://www.enginehistory.org/G&jJBrossett/USAF/P&W%20YF119%20Northrop-McDonnell%20Douglas%20YF-23.JPG

I've found some more pics on the web, (c) Phil Callihan
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline PaulMM (Overscan)

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Re: PW F-119 and GE F-120
« Reply #4 on: April 08, 2006, 12:50:21 am »
Hey, you are right, I was correct and didn't even notice! I thought it was the right thing, due to the YF-23 in the picture, but from the angle of the pictures the nozzle didn't look correct. I found the other pics you posted too, but didn't notice the one with the great view of the YF-23 nozzle.

My only defence is that it was very late and I was tired ;)
« Last Edit: April 08, 2006, 12:54:19 am by overscan »
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Offline PaulMM (Overscan)

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Re: PW F-119 and GE F-120
« Reply #5 on: May 28, 2006, 05:17:53 am »
Some more nozzle stuff
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Offline PaulMM (Overscan)

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Re: PW F-119 and GE F-120
« Reply #6 on: May 28, 2006, 07:28:01 am »
One more.

Source:
  • David C. Aronstein, Michael J. Hirschberg, & Albert C. Piccirillo Advanced Tactical Fighter to F-22 Raptor: Origins of the 21st Century Air Dominance Fighter AIAA 1998
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Offline flateric

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Re: PW F-119 and GE F-120
« Reply #7 on: May 28, 2006, 08:13:00 am »
Paul - thank you so much! Look what I digged -
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stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline PaulMM (Overscan)

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Re: PW F-119 and GE F-120
« Reply #8 on: May 28, 2006, 05:46:03 pm »
Higher res scan of YF120 nozzles in TIF format as requested by flateric
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Online elmayerle

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Re: PW F-119 and GE F-120
« Reply #9 on: May 29, 2006, 01:10:42 pm »
Biggest difference is that Northrop found they could get all the manueverability they could use without going to vectoring nozzles, which greatly simiplified the back end of the YF-23.

Offline flateric

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Re: PW F-119 and GE F-120
« Reply #10 on: May 29, 2006, 01:41:23 pm »
AFAIK, Lamilloy tiles with active cooling added pretty weight penalty to nozzle trenches design, but at EMD a/c Lamilloy was substituted with composite heat-resistant covers. Needles to say that I still can't understand why cheaper and smarter design didn't win.
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline flateric

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Re: PW F-119 and GE F-120
« Reply #11 on: May 15, 2008, 02:39:17 pm »
Does anyone know any dimensional data of PW F119 engine? In fact, figures of nozzle throat dimensions are of interest.
All I could dig is that inlet diameter approx. 46-47'. Or it's still classified/proprietary data? Would be funny because at least YF119 could be easily accessed at USAFM.
"There are many disbelievers in
stealth, more than a few of them truly technically ignorant and proud of it." Sherm Mullin, Skunk Works

Offline crash dummie

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Re: PW F-119 and GE F-120
« Reply #12 on: November 23, 2008, 06:28:54 pm »
seen these

Offline crash dummie

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Re: PW F-119 and GE F-120
« Reply #13 on: November 23, 2008, 06:31:20 pm »
or

Offline ScrutorAudax

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Re: PW F-119 and GE F-120
« Reply #14 on: September 24, 2015, 06:43:01 pm »
Through what mechanism did the engines accomplish thrust reversal?  I thought that it was a design requirement that wasn't dropped until after the prototypes had been made.