A Picture of the New 747 Engines | Page 6 | TigerDroppings.com
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777Tiger
LSU Fan
Member since Mar 2011
18751 posts

re: A Picture of the New 747 Engines

quote:

Well I guessed wrong.

not completely, the serrated surfaces you see on, for ex., an F-117, are to defeat radar, but look at the surfaces on the Concorde(50's technology, btw,) nothing is straight, or continuous, and that is for what you were saying it's for, the F-18 has some similar lines


DownshiftAndFloorIt
LSU Fan
The devil dreams on an idle horse
Member since Jan 2011
42848 posts

re: A Picture of the New 747 Engines
Well I was talking specifically about the small serrations on the leading edges of the wings (or maybe it was the trailing edges?), and not the overall geometry.


shite now I'm going to have to look it up. It's bothering me.


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Power-Dome
LSU Fan
B-Arruh
Member since Nov 2012
523 posts

re: A Picture of the New 747 Engines
quote:

I know they do a bunch of stuff with inlet geometry on supersonic aircraft to alter the mach number of the inlet air


You're on the right track. The Concorde had an angled intake, the SR-71 used cones at the intake to produce the angle. With the angle at intake, they are preventing a perpendicular shock wave from forming at the intake and "damming" the flow. With the angle , the shock wave forms at an angle that allows air to accelerate into the engines. I think.


DownshiftAndFloorIt
LSU Fan
The devil dreams on an idle horse
Member since Jan 2011
42848 posts

re: A Picture of the New 747 Engines
Give me a minute. I'm going look it up. Now it's bothering me.


lsu480
LSU Fan
Downtown Scottsdale
Member since Oct 2007
81597 posts

re: A Picture of the New 747 Engines
The Concorde was the shit!


Power-Dome
LSU Fan
B-Arruh
Member since Nov 2012
523 posts

re: A Picture of the New 747 Engines
Quite the Internet feat if you can "look up" compressible flow mechanics.


DownshiftAndFloorIt
LSU Fan
The devil dreams on an idle horse
Member since Jan 2011
42848 posts

re: A Picture of the New 747 Engines
I'm looking in my fluids book. I know I read it somewhere.



Power-Dome
LSU Fan
B-Arruh
Member since Nov 2012
523 posts

re: A Picture of the New 747 Engines
How far are you in school? Most of this stuff came during turbo-machinery lessons


lsu480
LSU Fan
Downtown Scottsdale
Member since Oct 2007
81597 posts

re: A Picture of the New 747 Engines
I believe you just because you have Knob Creek in your sig!


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When in Rome
USA Fan
Telegraph Road
Member since Jan 2011
27089 posts

re: A Picture of the New 747 Engines
I was watching a show on Netflix (from NOVA or Discovery or something) about stealth technology and some of the stuff was way cool. Like how they were able to get their radar signature down to the size of a bird, then a bug, smaller and smaller until they were virtually undetectable, using different materials and surface contours. So awesome.
This post was edited on 9/25 at 9:05 pm


Power-Dome
LSU Fan
B-Arruh
Member since Nov 2012
523 posts

re: A Picture of the New 747 Engines
quote:

The Concorde was the shit!


It really was. A marvel for its time. I would have loved to be able to see that thing in the sky.


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DownshiftAndFloorIt
LSU Fan
The devil dreams on an idle horse
Member since Jan 2011
42848 posts

re: A Picture of the New 747 Engines
Finishing up in ME


Power-Dome
LSU Fan
B-Arruh
Member since Nov 2012
523 posts

re: A Picture of the New 747 Engines
I took turbo machinery my last semester. See if you can take it with Guo. People would fall asleep in his class but he had me wide eyes the whole time. Great class.


777Tiger
LSU Fan
Member since Mar 2011
18751 posts

re: A Picture of the New 747 Engines
quote:

I was watching a show on Netflix (from NOVA or Discovery or something) about stealth technology and some of the stuff was way cool. Like how they were able to get their radar signature down to the size of a bird, then a bug, smaller and smaller until they were virtually undetectable, using different materials and surface contours. So awesome.

the largest radar signature on an F-22 is the milliseconds it takes for the missile door to open, release the missile, and close, virtually undetectable


DownshiftAndFloorIt
LSU Fan
The devil dreams on an idle horse
Member since Jan 2011
42848 posts

re: A Picture of the New 747 Engines
Well after this semester I'll be done with everything except sr design, so it'd have to be 100% voluntary.

I can't find what I was talking about. It must have been in another book.


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When in Rome
USA Fan
Telegraph Road
Member since Jan 2011
27089 posts

re: A Picture of the New 747 Engines
quote:

the largest radar signature on an F-22 is the milliseconds it takes for the missile door to open, release the missile, and close, virtually undetectable


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DownshiftAndFloorIt
LSU Fan
The devil dreams on an idle horse
Member since Jan 2011
42848 posts

re: A Picture of the New 747 Engines
It's incredible that something so big can laugh at radar.



member12
LSU Fan
Atlanta
Member since May 2008
2797 posts

re: A Picture of the New 747 Engines
Very cool.


When in Rome
USA Fan
Telegraph Road
Member since Jan 2011
27089 posts

re: A Picture of the New 747 Engines
quote:

Very cool.
quote:

Member since May 2008
quote:

36 posts
I feel validated.


777Tiger
LSU Fan
Member since Mar 2011
18751 posts

re: A Picture of the New 747 Engines
quote:

It's incredible that something so big can laugh at radar.

it's amazing, it really obsolesces older gen fighters, like the F-15,-16,-18, and certainly anything anyone else has, when it comes to air to air, unfortunately, I know of the humility from a good source
This post was edited on 9/25 at 9:21 pm


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