Aircraft of World War II - Warbird Forums

Your top 10 modern fighters

Modern Discuss Your top 10 modern fighters in the Other Eras forums; Originally Posted by SoD Stitch The Rockwell XFV-12A was waaaaaaaaay underpowered . . . it had a second-generation low bypass-ratio ...


Go Back   Aircraft of World War II - Warbird Forums > Other Eras > Modern

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 08-18-2007, 02:19 AM   #211
Senior Member
 
Join Date: May 2007
Posts: 1,530
Country:
Quote:
Originally Posted by SoD Stitch View Post
The Rockwell XFV-12A was waaaaaaaaay underpowered . . . it had a second-generation low bypass-ratio turbofan (a P&W F401) that didn't provide enough thrust to get it off the ground,
But they still built a prototype. This is what I don't understand. The 'lab tests' revealed that there was only enough thrust to lift 75 per cent of the aircraft. Why prove the point, by building the plane?
Graeme is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-18-2007, 06:19 AM   #212
Senior Member
 
The Basket's Avatar
 
Join Date: Jun 2007
Posts: 458
Country:
The Harrier is designed to fly from short runways and improvised airstrips.

It can do things no other jet can do.

To compare to say a F-15E is a little misleading. If the runway has been damaged beyoynd repiar the Eagle goes nowhere.

The Sea Harrier has one of the best kill ratios of a modern jet. And against a west equipped airpower.
The Basket is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-18-2007, 09:22 AM   #213
Senior Member
 
mkloby's Avatar
 
Join Date: Sep 2006
Location: Jacksonville, NC
Posts: 3,258
Country:
Quote:
Originally Posted by The Basket View Post
The Harrier is designed to fly from short runways and improvised airstrips.

It can do things no other jet can do.

To compare to say a F-15E is a little misleading. If the runway has been damaged beyoynd repiar the Eagle goes nowhere.

The Sea Harrier has one of the best kill ratios of a modern jet. And against a west equipped airpower.
I believe it also has a mishap rate about 4 times that of an F/A-18 in US service. Don't quote me on that one, though.

In a couple short years when the F-35 is out - the Harrier alone won't have that capability any longer.

Also - don't forget the pilots that US and Brit harrier drivers went up against have nowhere near their level of training.
__________________
If the Army and the Navy ever look on heaven's scenes, they will find the streets are guarded by United States Marines
mkloby is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-18-2007, 11:35 AM   #214
Senior Member
 
Join Date: Apr 2005
Location: London
Posts: 2,853
[quote=mkloby;269913]I believe it also has a mishap rate about 4 times that of an F/A-18 in US service. Don't quote me on that one, though.

Quote:
In a couple short years when the F-35 is out - the Harrier alone won't have that capability any longer.
Which means that the RN made a good choice swapping the Harrier for the F35. No one can pretend that the Harrier is as good or as flexible as the F35, there is at least a generation difference in the technology

Quote:
Also - don't forget the pilots that US and Brit Harrier drivers went up against have nowhere near their level of training.
Completely agree, but the FRS1 used in the Falklands was a remarkable plane that performed well, despite a huge number of tactical disadvantages. However and more relavent to he points raised in this thread, its reliability was unmatched in extreamly difficult war conditions. Which after all, is when it counts.
Also the FRS2 held a remarkable record in Red Flag exercises against the F15.
Glider is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-18-2007, 10:56 PM   #215
Senior Member
 
Join Date: May 2007
Posts: 1,530
Country:
Quote:
Originally Posted by Glider View Post
The ski jump makes a huge difference at sea and I have always wondered why the USA didn't follow this practice.
Russians had a shot at it, aboard the Tbilisi in late 1989 with MiG-29s and Su-27s. Take-off runs, depending on weight, varied between 330-600 feet. The short run benefited from the use of deck-launch 'restrainers', which were hinged planks, raised ahead of the mainwheels to allow the engines to be run up to full thrust before the aircraft was released. Deck-end speed was 75-85 knots.

But as renrich pointed out, a loaded A6...?

Graeme is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-18-2007, 11:23 PM   #216
Senior Member
 
SoD Stitch's Avatar
 
Join Date: Jun 2007
Location: Pine Mountain Lake, California
Posts: 802
Country:
Quote:
Originally Posted by Graeme View Post
But they still built a prototype. This is what I don't understand. The 'lab tests' revealed that there was only enough thrust to lift 75 per cent of the aircraft. Why prove the point, by building the plane?
The developers had originally thought they could increase the thrust by ducting part of the engines thrust at takeoff 'to "augmentor" flaps in the wings and in the oversized canard. By dragging free-stream air through the flaps and increasing the mass flow, the augmentor flaps would boost the engines thrust by 70 percent - in theory' (Quoted from Joint Strike Fighter: Boeing X-32 vs Lockheed Martin X-35, by Bill Sweetman). As static tests with the engine running at military power showed, these estimates were grossly overstated. So, it wasn't a case of "them" building an aircraft that they knew was underpowered, but one in which the theory did not live up to reality.

Last edited by SoD Stitch : 08-19-2007 at 08:42 PM. Reason: Spelling
SoD Stitch is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-18-2007, 11:39 PM   #217
Senior Member
 
Aussie1001's Avatar
 
Join Date: Jul 2007
Location: Queensland- Australia
Posts: 897
Country:
Send a message via MSN to Aussie1001
Was the harrier supersonic in level flight ????
either model ???
__________________


98% Of teens surround their minds with rap. If you're part of the 2% that stayed with rock, put this on your signature

I am also one of the 2% who does not own a myspace account....
DEFY THE SYSTEM
Aussie1001 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-18-2007, 11:54 PM   #218
IP/Mech THE GREAT GAZOO
 
FLYBOYJ's Avatar
 
Join Date: Apr 2005
Location: Colorado, USA
Posts: 13,520
Country:
Quote:
Originally Posted by Aussie1001 View Post
Was the harrier supersonic in level flight ????
either model ???
none of the above.....
__________________
"IF ITS RED OR DUSTY, DON'T TOUCH IT"
FLYBOYJ is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-19-2007, 12:17 AM   #219
Senior Member
 
Aussie1001's Avatar
 
Join Date: Jul 2007
Location: Queensland- Australia
Posts: 897
Country:
Send a message via MSN to Aussie1001
Jesus that's not exactly good on it's part oh well i guess it wasn't really designed to be a supersonic plane with all the bulky gear that gives it the ability to go VTOL
__________________


98% Of teens surround their minds with rap. If you're part of the 2% that stayed with rock, put this on your signature

I am also one of the 2% who does not own a myspace account....
DEFY THE SYSTEM
Aussie1001 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-19-2007, 12:34 AM   #220
Senior Member
 
Join Date: May 2007
Posts: 1,530
Country:
Quote:
Originally Posted by SoD Stitch View Post
As static tests with the engine running at military power showed, these estimates were grossly overastated. So, it wasn't a case of "them" building an aircraft that they knew was underpowered, but one in which the theory did not live up to reality.
Hmm..I've been under the impression that shortcomings in the Thrust Augmented Wing (TAW) had been revealed at Rockwell's "whirly-rig" stage, but pressed on hoping the problem could be overcome by experimenting with the prototype.

Must have been a huge disappointment/embarrassment for Rockwell. In 1975 Company President Jim Tichenor told a reporter that, "It'll make the Harrier as dead as the dodo". One company history book, 'Rockwell-The Heritage of North American' (1986) makes no mention of the saga or the XFV-12A, at all.
Bill Gunston states that when Rockwell was pressed, "they explained that they failed to achieve the desired augmentation ratio, (1:6), in the ejector ducts, but there was more to it than this".

Thanks for your input SoD Stitch


Last edited by Graeme : 08-19-2007 at 12:36 AM.
Graeme is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-19-2007, 12:40 AM   #221
Senior Member
 
Aussie1001's Avatar
 
Join Date: Jul 2007
Location: Queensland- Australia
Posts: 897
Country:
Send a message via MSN to Aussie1001
Sir Winston Spencer Churchill onec said this which in the circumstances i think is rather approporiate if a little wrong in this case anyway:

Eating words has never given me indigestion.
Winston Churchill
He also said this:

Although personally I am quite content with existing explosives, I feel we must not stand in the path of improvement.
Winston Churchill
__________________


98% Of teens surround their minds with rap. If you're part of the 2% that stayed with rock, put this on your signature

I am also one of the 2% who does not own a myspace account....
DEFY THE SYSTEM
Aussie1001 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-19-2007, 01:11 AM   #222
Senior Member
 
Join Date: May 2007
Posts: 1,530
Country:
Quote:
Originally Posted by Aussie1001 View Post
Was the harrier supersonic in level flight ????
either model ???
Could have been.

Russians did.

Now go outside, and kick the footy for awhile!

Graeme is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-19-2007, 07:00 AM   #223
Senior Member
 
The Basket's Avatar
 
Join Date: Jun 2007
Posts: 458
Country:
The Harrier performed excellently in the Falklands.

The Harrier isn't supersonic but so what?

Tanks aren't supersonic. The Apache isn't supersonic.

The Harrier was the ONLY successful VTOL aircraft.
The Basket is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-19-2007, 09:32 AM   #224
Der Crewchief
 
DerAdlerIstGelandet's Avatar
 
Join Date: Nov 2004
Location: Ansbach, Germany
Posts: 30,187
Country:
You have the remember the Harrier was not designed to be a interceptor or air supperiority fighter like the F-15, F-14, F-16 and so forth.

The Harrier was designed to be used in ground attack and support missions. That is why the US Marines bought it and why other nations such as England use it.

To compare it to aircraft such as the F-15 and so forth is a bit foolish in my opinion.

The Harrier is a great ground attack but does not come close to the A-10 in my opinion.
__________________

US Army Blackhawk Crewchief 2000-2006

Classic ww2aircraft.net quotes:

fly boy said: "isn't that the first jet bomber? becasue i have flown one in a flight sim before and i know how it handles"

"wait what ok who made the b-2 crash come on people that messed up its a b-2"

"ah yes the mistel those things are so annoying is games and in real life"
DerAdlerIstGelandet is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Old 08-19-2007, 06:33 PM   #225
Senior Member
 
Aussie1001's Avatar
 
Join Date: Jul 2007
Location: Queensland- Australia
Posts: 897
Country:
Send a message via MSN to Aussie1001
Quote:
Originally Posted by Graeme View Post
Could have been.

Russians did.

Now go outside, and kick the footy for awhile!

WTF dont have a footy however will ride motorbike at soonest oppotunity....
__________________


98% Of teens surround their minds with rap. If you're part of the 2% that stayed with rock, put this on your signature

I am also one of the 2% who does not own a myspace account....
DEFY THE SYSTEM
Aussie1001 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!Spurl this Post!Reddit! Wong this Post!
Reply With Quote
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 02:02 PM.


Powered by vBulletin
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.1.0
   

AVIATION TOP 100 - www.avitop.com Avitop.com


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93