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Subject: Tracking stealth aricraft
Sucari    5/22/2007 10:09:09 PM
In movies and hows about steath aircraft they always say how it's "radar signiture is reduced to the size of a small bird" isn't it easy to proram a radar to detect a small bird moving at 100mph + and designate it as a hostile ?
 
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french stratege       6/11/2007 4:48:08 AM
An other solution to track stealth aircraft would be a small (less than one tons) subsonic stealth UAV in numbers with long range IRST.This loitering stealth UAV would fly during hours and designate targets to the ground network or could also be use for ground designation.Cost should be about 3/4 m USD. (a cruise missile cost less than 1 m USD and a designator Flir pod less than 2 m€).
Some could be equiped with a powerfull C or X band emiter to act as emission source for multistatic radars or as jammer.
It would have a lot of potential applications.It would not be more than a small X47, with a cruise missile navigation system with a versatile 200 kg payload which could be either an IRST and designator , a small bomb payload, a jammer or  a multistatic emmiter source.With 3/4 B USD you could buy 1000!
 
 
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Herald1234       6/11/2007 4:58:53 AM

An other solution to track stealth aircraft would be a small (less than one tons) subsonic stealth UAV in numbers with long range IRST.This loitering stealth UAV would fly during hours and designate targets to the ground network or could also be use for ground designation.Cost should be about 3/4 m USD. (a cruise missile cost less than 1 m USD and a designator Flir pod less than 2 m€).
 
Effective range is less than 20 kilometers under the best weather conditions and you would not have look down capability. Your cost estimate is also way off by one order of magnitude.

Some could be equiped with a powerfull C or X band emiter to act as emission source for multistatic radars or as jammer.
 
Not possible at the airframe mass limits imposed.  

It would have a lot of potential applications.It would not be more than a small X47, with a cruise missile navigation system with a versatile 200 kg payload which could be either an IRST and designator , a small bomb payload, a jammer or  a multistatic emmiter source.With 3/4 B USD you could buy 1000!
 
See above comments. You don't know about what you write.

Herald 
 
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andyf       6/12/2007 10:38:11 AM
did have an idea tho.. dont know how practical..high altitude flight creates contrails does it not?
weather radar can detect clouds
look for aircraft at the ends of contrails
 
such a plane as a b2 , looking at the wings, doubtful its meant for low level
thoughts?
 
 
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apoorexcuse    contrails   6/12/2007 12:00:05 PM
Contrails are created in an altitude / moisture band.  The B2 (and I would assume the F22) monitors the moisture level for a given altitude, as the likely hood of contrail creation increases the B2 altitude changes to negate this.
 
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gf0012-aust       6/12/2007 8:10:01 PM

Contrails are created in an altitude / moisture band.  The B2 (and I would assume the F22) monitors the moisture level for a given altitude, as the likely hood of contrail creation increases the B2 altitude changes to negate this.

contrails can also be managed by chemical injection.
 
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Ed Grimley       6/12/2007 11:19:03 PM



Contrails are created in an altitude / moisture band.  The B2 (and I would assume the F22) monitors the moisture level for a given altitude, as the likely hood of contrail creation increases the B2 altitude changes to negate this.


contrails can also be managed by chemical injection.


If I remember right from my reading that is one of the methods used on the B2 - though my memory could be off.
 
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apoorexcuse    contrails   6/13/2007 9:09:28 AM






Contrails are created in an altitude / moisture band.  The B2 (and I would assume the F22) monitors the moisture level for a given altitude, as the likely hood of contrail creation increases the B2 altitude changes to negate this.



contrails can also be managed by chemical injection.



If I remember right from my reading that is one of the methods used on the B2 - though my memory could be off.

Officially it is not use, but was investigated.  There was some stink over the environmental impact of the chemicals.  As far as I know the tanks are still in place.  I suppose if the B2 is to be used for its intended purpose, in the event of nuclear war nobody will really care about a few extra pounds of chemicals used to improve its LO...  Without knowing for certain (as it almost always is with LO technology :-) ) I would venture that for the most common conventional scenarios there is a cost vs gain prohibition of some sort.
 
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