Pratt & Whitney Geared Turbofan PurePowerŽ GTF Engine

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  #16  
Old 06-08-2012 | 05:10 PM
jethat's Avatar
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Originally Posted by FallenF96
http://youtu.be/kM3dss1DFGw Another fine Pratt product (220) Gonna be deaf by 30 but I still won't trade it for any other job
The f-15 is a beautiful machine. Top 5 best looking aircraft ever made for sure. The F-14 was the best looking fighter ever made in my opinion the F-15 follows right behind it. The Soviets or Russians copied the F-15 and built a very nice looking aircraft to.. Not a fan of the stealth fighters. They just dont have the looks of the legacy machines..
 
  #17  
Old 06-08-2012 | 10:35 PM
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My P&W fun with the F117-100.

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Good motor.

Adrianspeeder
 
  #18  
Old 06-09-2012 | 09:43 AM
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From: Dover AFB DE / Harrisburg PA

Me marshalling one out of parking in a sandstorm. Friend filming had to take cover behind the bobtail unfortunately.


Daytime backing.


Adrianspeeder
 
  #19  
Old 06-09-2012 | 10:09 AM
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Originally Posted by jethat
The f-15 is a beautiful machine. Top 5 best looking aircraft ever made for sure. The F-14 was the best looking fighter ever made in my opinion the F-15 follows right behind it. The Soviets or Russians copied the F-15 and built a very nice looking aircraft to.. Not a fan of the stealth fighters. They just dont have the looks of the legacy machines..
This brings up a good debate, what are the top 5 best looking aircraft of all time.
 
  #20  
Old 06-09-2012 | 11:08 AM
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F-14 tomcat P-51 mustang F-15 Eagle Mig 31 F-111. thats my list off the top of my head..
 
  #21  
Old 06-09-2012 | 11:38 AM
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From: Mount Airy,MD
My favorites in order"

P-51 Mustang
F-86 Saber
F-16 Fighting Falcon
F-15 Eagle
F-100 Super Saber

There are others that are cool looking just because of the oddity, example A-10 or F7U Cutlass.
 
  #22  
Old 06-09-2012 | 06:42 PM
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Here's the top 5 with pics (how it should be) but I'm gonna try to pick one from each generation. I'm sticking to fighter jets to keep it simple.

WWI
SPAD XIII


WWII
This one is tough, the P-51D is gorgeous


but so is the Spitfire

too close to call, it's a draw

The F4 Phantom has always been a favorite. Big, nasty and mean; what's not to like?


The Dassault Rafale is a beauty queen, too bad is just sits on the shelf.
 
  #23  
Old 06-09-2012 | 08:40 PM
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Naw naw naw, thems little toy planes. I like my birds like my trucks and women.

1. 777
2. C-17
3. B-52
4. MD-11
5. 747-800

And if it ain't Boeing, I ain't going.

Adrianspeeder
 
  #24  
Old 06-09-2012 | 10:40 PM
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Originally Posted by jethat
F-14 tomcat P-51 mustang F-15 Eagle Mig 31 F-111. thats my list off the top of my head..
Win! I'm just going to add F-18 to that list and A-10, Looks that kill haha 30mm of hate
 
  #25  
Old 06-09-2012 | 10:45 PM
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Adrian

I question for you, I've always wondered.

Without going into specifics that you may not be allowed to answer, What is the shaft speed, in RPMs for a jet engine on a large plane. Like 747 or B-52 or, or.....

I'm not asking about prop speed on a turbine, but the shaft on a jet engine, the part you shreds the unlucky goose that gets sucked in.

By listening, it sounds quite high, by looking, it seems rather slow although I'll bet the tip speed is up there!
 
  #26  
Old 06-09-2012 | 11:33 PM
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Originally Posted by adrianspeeder
Naw naw naw, thems little toy planes. I like my birds like my trucks and women.

1. 777
2. C-17
3. B-52
4. MD-11
5. 747-800

And if it ain't Boeing, I ain't going.

Adrianspeeder
My kid who is navy was stationed on an old LPD and he use to tell me how that old rust bucket was the finest ship iin the Navy..
Sorry thems the E series of airplanes..
 
  #27  
Old 06-10-2012 | 07:36 AM
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Some more pictures with the TR and accessory doors open.

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Originally Posted by Flagship
Adrian

I question for you, I've always wondered.

Without going into specifics that you may not be allowed to answer, What is the shaft speed, in RPMs for a jet engine on a large plane. Like 747 or B-52 or, or.....

I'm not asking about prop speed on a turbine, but the shaft on a jet engine, the part you shreds the unlucky goose that gets sucked in.

By listening, it sounds quite high, by looking, it seems rather slow although I'll bet the tip speed is up there!
Well, there are two different speeds that are measured. N1 and N2. On a high bypass motor like a CF6 on a 74, or my 757 PW2000 derived F-117-100, N2 would be the rotational speed of the core. The core's exhaust blowing out the back has the last job of spinning a few stages that send rotational force all the way back to the front to spin the front fan giving N1 speed. No idea on the actual RPM's as we measure them in a percentage value.

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Adrianspeeder
 
  #28  
Old 06-10-2012 | 11:12 AM
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From: Cabot, AR
Originally Posted by Flagship
I'm not asking about prop speed on a turbine, but the shaft on a jet engine, the part you shreds the unlucky goose that gets sucked in.

By listening, it sounds quite high, by looking, it seems rather slow although I'll bet the tip speed is up there!
I found a document from Stanford about the GE-90 (powers the 777) that says,
In mid-November 94, GE conducted the fan bladeout test with the FAA present. The release blade was detonated at a fan speed of 2,485 rpm, 10 rpm over the target, with the engine generating more than 105,000 lb. (466.8 kN) of sea level static (SLS) corrected thrust. The engine mount system performed as designed and the test demonstrated fan blade containment.
The ruggedness of the composite fan blade was successfully demonstrated, and the observed trailing blade damage matched pre-test analysis, verifying the inherent benefits of the composite blade design.
 
  #29  
Old 06-10-2012 | 03:43 PM
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From: Dover AFB DE / Harrisburg PA
That GE90 ain't no joke. First 777 I seen that blocked into parking next to a jet I was workin', and I was over to check it out with a quickness. HUGE freakin' beast of a motor.

Adrianspeeder
 
  #30  
Old 06-10-2012 | 11:54 PM
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You guys are doing it all wrong.

Lycoming O-320

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