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747 firebomber web site



 
 
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  #1  
Old May 18th 04, 03:42 PM
Leadfoot
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Default 747 firebomber web site

http://tinyurl.com/2ejag

96 tons of water!!!!!


  #2  
Old May 18th 04, 09:37 PM
Jim Doyle
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"Leadfoot" wrote in message
news:Chpqc.69469$Fl5.45597@okepread04...
http://tinyurl.com/2ejag

96 tons of water!!!!!




How would you maintain the cog within stability requirements during a full
offload? Short bursts followed by redistributing what remains, or a full
dump feed from a central wing box/fuselage tank?

Has this much been dropped by another aircraft, if so how'd they manage it?
Was it a dedicated aircraft, designed from day one to have such a
capability?

Jim


  #3  
Old May 18th 04, 11:32 PM
BUFDRVR
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Leadfoot wrote:

96 tons of water!!!!!


The hell with that, how about 400' AGL and only 140 KIAS?


BUFDRVR

"Stay on the bomb run boys, I'm gonna get those bomb doors open if it harelips
everyone on Bear Creek"
  #4  
Old May 19th 04, 12:54 AM
Ron
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96 tons of water!!!!!

The hell with that, how about 400' AGL and only 140 KIAS?


BUFDRVR


We were a heck of a lot lower in the C-54 on our drops..I think with the
pressuization system, they plan on dropping higher, but it will be hard to be
precise at all, or go into canyons.

The 747 will be good for a deluge from around 600-800 AGL, but its going to
be a deluge, and not something that will be precise or that you can do with the
"grubbies" nearby


Ron
Tanker 65, C-54E (DC-4)
Silver City Tanker Base

  #5  
Old May 19th 04, 03:08 AM
Leadfoot
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"Jim Doyle" wrote in message
news

"Leadfoot" wrote in message
news:Chpqc.69469$Fl5.45597@okepread04...
http://tinyurl.com/2ejag

96 tons of water!!!!!




How would you maintain the cog within stability requirements during a full
offload? Short bursts followed by redistributing what remains, or a full
dump feed from a central wing box/fuselage tank?


The 747-400 initial flight test COG test was done with a water ballast
system. When the engineers wanted to try a differnt COG in flight they just
pumped water to where they needed it. Sure beats the old method of having
flight test techs move sand bags around They never dumped any of the water
during flight test to my knowledge but I'm sure they used a lot of the
experience gained in this project



Has this much been dropped by another aircraft, if so how'd they manage

it?
Was it a dedicated aircraft, designed from day one to have such a
capability?


Its a classic version of the 747 which Boeing stopped making in 1990.


Jim




  #6  
Old May 19th 04, 07:26 AM
Jack G
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Carpet Water Bombing?

Jack

"Ron" wrote in message
...
96 tons of water!!!!!


The hell with that, how about 400' AGL and only 140 KIAS?


BUFDRVR


We were a heck of a lot lower in the C-54 on our drops..I think with the
pressuization system, they plan on dropping higher, but it will be hard to

be
precise at all, or go into canyons.

The 747 will be good for a deluge from around 600-800 AGL, but its going

to
be a deluge, and not something that will be precise or that you can do

with the
"grubbies" nearby


Ron
Tanker 65, C-54E (DC-4)
Silver City Tanker Base



  #7  
Old May 19th 04, 08:47 AM
Krztalizer
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Carpet Water Bombing?


Like a 400,000 pound cow, ****in' on a flat rock.

"Surrender now, or the next load is going to be pig urine, headed for Falluja!"


  #8  
Old May 19th 04, 07:28 PM
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Leadfoot wrote:
http://tinyurl.com/2ejag


96 tons of water!!!!!


I read their FAQ, but no mention of loading
requirements or time. I want to see a belly
sccop on that baby . . . ;-)

Bill Ranck
Blacksburg, Va.
  #9  
Old May 19th 04, 08:31 PM
Rick Shaww
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wrote in message ...
Leadfoot wrote:
http://tinyurl.com/2ejag


96 tons of water!!!!!


I read their FAQ, but no mention of loading
requirements or time. I want to see a belly
sccop on that baby . . . ;-)

Bill Ranck
Blacksburg, Va.


How about a Buf with vinyal bombs?? Bring back some old timers and let them
have a ball.....


  #10  
Old May 20th 04, 02:45 AM
John R Weiss
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"Jim Doyle" wrote...

How would you maintain the cog within stability requirements during a full
offload? Short bursts followed by redistributing what remains, or a full
dump feed from a central wing box/fuselage tank?


Or dump from multiple tanks, approximately symmetric about the CG.


 




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