9/11 Pentagon Wreckage

"Gord Beaman" wrote in message
...
"Keith Willshaw" wrote:


"Gord Beaman" wrote in message
.. .
Steve Hix wrote:


Well, speaking of size, doesn't it look pretty small for an
RB-211?...I googled for info and found that the fan on a 211 is
6.5 feet in diameter. I realize that the fan is gonna be bigger
than the turbine/compressor discs but this one looks to be maybe
2.5 to 3 feet wide judging from the fireman's leg in the
foreground. Seems a bit small doesn't it?.

My brother, whos a turbine engineer tells me the inner compression
disks of this engine are between 29 and 41 inches in diameter
and it looks like that section to him. The IP compression
stage is behind the main fan which which would have taken the
brunt of any impact.

Keith


Ok thanks Keith...I did notice in the info that I found that
there was a surprisingly large difference in diameter between the
fan and the other discs (just going by a sketch that I saw)

Sorry if I'm being dense here but isn't this the whole point of a modern
turbofan?

John

"John Mullen" wrote in message
...
"Gord Beaman" wrote in message
...
"Keith Willshaw" wrote:



Ok thanks Keith...I did notice in the info that I found that
there was a surprisingly large difference in diameter between the
fan and the other discs (just going by a sketch that I saw)

Sorry if I'm being dense here but isn't this the whole point of a modern
turbofan?


Indeed, there's a nice picture at the URL below which shows
the sort of relationship between fan and core sizes on high
bypass engines.

http://home.swipnet.se/~w-65189/tran...747_series.htm

Keith

On 16 Oct 2003 21:31:53 GMT, (BUFDRVR) wrote:

Looking at the size of those rotor disks it most be the mother of
all cruise missiles.


Yeah, probably half the size of a 757


BUFDRVR

"Stay on the bomb run boys, I'm gonna get those bomb doors open if it harelips
everyone on Bear Creek"

Yep, that's the one that powers the Buff to the release point to save
gas, the Buff doesn't even start its engines until then :-)

Oh God, eight air-starts :-(

Al Minyard

On 17 Oct 2003 19:11:53 GMT, (B2431) wrote:

From: (BUFDRVR)
Date: 10/16/2003 4:31 PM Central Daylight Time
Message-id:

Looking at the size of those rotor disks it most be the mother of
all cruise missiles.


Yeah, probably half the size of a 757


BUFDRVR


Come one, guys, it's a new technology. The military looked at hollow point
bullets and how the expand on impact and developed a technology for doing that
with cruise missile engines. They also discovered a way for cruise missiles to
look like jet liners to ground observers.

Don't you guys understand the black helicopters are on our side? Do you really
believe we have learned nothing from the space aliens held at Area 51?

Dan, U. S. Air Force, retired

Well, I've heard that they had a killer chile receipy :-)

Al Minyard

"John Mullen" wrote:

"Gord Beaman" wrote in message
.. .
"Keith Willshaw" wrote:


"Gord Beaman" wrote in message
.. .
Steve Hix wrote:


Well, speaking of size, doesn't it look pretty small for an
RB-211?...I googled for info and found that the fan on a 211 is
6.5 feet in diameter. I realize that the fan is gonna be bigger
than the turbine/compressor discs but this one looks to be maybe
2.5 to 3 feet wide judging from the fireman's leg in the
foreground. Seems a bit small doesn't it?.

My brother, whos a turbine engineer tells me the inner compression
disks of this engine are between 29 and 41 inches in diameter
and it looks like that section to him. The IP compression
stage is behind the main fan which which would have taken the
brunt of any impact.

Keith


Ok thanks Keith...I did notice in the info that I found that
there was a surprisingly large difference in diameter between the
fan and the other discs (just going by a sketch that I saw)

Sorry if I'm being dense here but isn't this the whole point of a modern
turbofan?

John

Well, I don't know if 'the whole point' is a valid assessment but
yes, the fan is larger than the compressor discs on turbofan
engines. Just seemed to be out of proportion to me. The discs in
that photo seemed smaller than I expected to see from a 757
engine, that's all. But by Keith's answer it seems ok...
--

-Gord.

On 17 Oct 2003 19:11:53 GMT, B2431 wrote:

Don't you guys understand the black helicopters are on our side? Do you really
believe we have learned nothing from the space aliens held at Area 51?

Actually the space aliens are just a cover story. Area 51 is
*really* the seat of the Illuminati Secret World Government.

--
"It's easier to find people online who openly support the KKK than
people who openly support the RIAA" -- comment on Wikipedia
(My real email address would be if you added 275
to it and reversed the last two letters).