Bolkcom of the CRS against F/A-22

In article ,
John Cook wrote:

snip

Bolkcom said the Raptor's 540-nautical mile unrefueled combat radius
dictated it operated from forward bases -- another drawback for a
Pentagon facing potential conflict in distant lands with perhaps scant
bases nearby from which to operate.

Only 540 nautical miles!!! its funny some were predicting it was going
to be a bit further...


This could cock up a few peoples AtoA refueling tanker sums

Or someone could have typed "540" instead of "840."

--
cirby at cfl.rr.com

Remember: Objects in rearview mirror may be hallucinations.
Slam on brakes accordingly.

In article ,
"Kevin Brooks" wrote:

"Henry J Cobb" wrote in message
...
Bolkcom said the Raptor's 540-nautical mile unrefueled combat radius
dictated it operated from forward bases -- another drawback for a
Pentagon facing potential conflict in distant lands with perhaps scant
bases nearby from which to operate.

Or it could be (gasp!) refueled;

Or, more to the point, it has a *lot* more than a 540 mile combat
radius, over 840 miles.

--
cirby at cfl.rr.com

Remember: Objects in rearview mirror may be hallucinations.
Slam on brakes accordingly.

On Fri, 05 Mar 2004 00:50:27 GMT, Chad Irby wrote:

In article ,
"Kevin Brooks" wrote:

"Henry J Cobb" wrote in message
...
Bolkcom said the Raptor's 540-nautical mile unrefueled combat radius
dictated it operated from forward bases -- another drawback for a
Pentagon facing potential conflict in distant lands with perhaps scant
bases nearby from which to operate.

Or it could be (gasp!) refueled;

Or, more to the point, it has a *lot* more than a 540 mile combat
radius, over 840 miles.

and the source of this 840 mile figure is???,

Does that figure include the 200nm supercruise profile?

Just want to know...

Cheers
John Cook

Any spelling mistakes/grammatic errors are there purely to annoy. All
opinions are mine, not TAFE's however much they beg me for them.

Email Address :-
Spam trap - please remove (trousers) to email me
Eurofighter Website :- http://www.eurofighter-typhoon.co.uk

In article ,
John Cook wrote:

On Fri, 05 Mar 2004 00:50:27 GMT, Chad Irby wrote:

Or, more to the point, it has a *lot* more than a 540 mile combat
radius, over 840 miles.

and the source of this 840 mile figure is???,

Several, including:

http://www.periscope.ucg.com/sampleWeapons.html

http://www.fighters.co.yu/Data/Usa/FA22ARaptor-data.htm

http://www.harcirepulo.hu/F-22/

--
cirby at cfl.rr.com

Remember: Objects in rearview mirror may be hallucinations.
Slam on brakes accordingly.

On Sat, 06 Mar 2004 02:09:45 GMT, Chad Irby wrote:

In article ,
John Cook wrote:

On Fri, 05 Mar 2004 00:50:27 GMT, Chad Irby wrote:

Or, more to the point, it has a *lot* more than a 540 mile combat
radius, over 840 miles.

and the source of this 840 mile figure is???,

Several, including:



OK first their not really what I would call 'good' sources, OK for
homework and newspaper reporters, not for much more though...

This is going to sound a little harsh... but do you have anything with
a little more authority or credability?

http://www.periscope.ucg.com/sampleWeapons.html
You might want them to check their fuel load ;-) its possible they
confused kg with litres... and thats where the error has crept in.

I would wager that the Raptors real fuel load is sub 20,000lbs my
educated guess is around 18,000-19,500lbs.
But you'll have to wait till its not classified to prove me right or
wrong, or someone 'in the know' gives us a hint.


http://www.fighters.co.yu/Data/Usa/FA22ARaptor-data.htm
This site is under construction, try to go to the UK link etc..
BTW the Eurofighter Data has errors (see if you can find it)... so
what makes you think that the F-22 is correct?


http://www.harcirepulo.hu/F-22/

This site has lots of inaccurate info on it, and it only took me 10
seconds to find out too.


I'm not convinced by these sites, If it was from Janes, Brasseys,
Lockheed, USAF, GAO, RAND, these I would be more interested in.


Cheers
John Cook

Any spelling mistakes/grammatic errors are there purely to annoy. All
opinions are mine, not TAFE's however much they beg me for them.

Email Address :-
Spam trap - please remove (trousers) to email me
Eurofighter Website :- http://www.eurofighter-typhoon.co.uk

Just thought I'd chuck this in again... I first wrote this in 1998...
and have left it unchanged - usual caveats apply...

*********************quote

"I will start with the ferry range as this is the easiest.

The EF2000 can fly 2000 Nm (Nautical Miles) using 5700 litres of fuel
+ 2 x 1000 litres drop tanks, total 7700ltrs , this gives a figure of
3.85 ltrs per nautical mile for an engine that produces 120kN dry
thrust.

This figure does not include any reserve fuel, but as all aircraft
usually have this margin, it can for this purpose be ignored.

But now we have established a fuel usage figure for ferry range for a
120kN class engine.

Now the F22 can carry 11000 litres of fuel internally, but the engines
produce 220kN of thrust, if we use the same ratio 220kN/120kN and
apply this to the fuel we get 7.05 litres per Nm.

Ok the above is rough, and no doubt somebody will tell me larger
engines are more/less efficent, and I would like to know!!!.

So the ferry range for the F22 is around 11000/7.05= 1560Nm using
internal fuel.
With additional drop tanks (9000 litres) this extends to 2837Nm.

Using this figure of 7.05 ltrs per Nm, the F22 can fly around 780Nm
combat radius, with no loiter time, using internal fuel only."

****************Unquote

So using ferry type configuration, cruising at its most fuel
efficient, and at its best cruise altitude the Raptors range is
780nm, add supercruise, weapons and combat flight profile. and it
only gets shorter.
I would hazard a guess that the Raptors A to A combat radius is
within the 540 to 620nm with about 25 mins loiter.

This does depend on Internal fuel load...

Hope this helps

Cheers





John Cook

Any spelling mistakes/grammatic errors are there purely to annoy. All
opinions are mine, not TAFE's however much they beg me for them.

Email Address :-
Spam trap - please remove (trousers) to email me
Eurofighter Website :- http://www.eurofighter-typhoon.co.uk