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edpop
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 Posted: May 05, 2012 - 04:37 AM
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Enthusiast
Joined: Feb 02, 2008 - 08:43 PM
Posts: 83
Location: Macomb, Michigan
Status: Offline
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| RCS is obviously the most important thing going for todays fighters.....or lack of it. All of the fighters lately have big air intakes stuck to the side or the bottom of the fuselage. Looking at the F-86 Sabre or the F-84 Thunderjet of the fifties where the intake is in the front of the fuselage would this have any benefit of reducing RCS??? |
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Sponsor
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 Posted: May 24, 2013 - 7:55 PM
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F-16.net Sponsor
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count_to_10
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Posted: May 05, 2012 - 05:14 AM
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Elite 1K
Joined: Mar 10, 2012 - 03:38 PM
Posts: 1329
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As far as I know, there are two considerations: making sure that the edges of the intake aren't aligned such that they reflect radar forward, and making sure that there is not line of sight to the fan blade, which is a strong reflector.
The YF-32 had a front intake designed to keep it's signature down, but the older jets were not designed with those considerations. |
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linkomart
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Posted: Feb 03, 2013 - 04:17 PM
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Active Member
Joined: May 31, 2010 - 08:30 AM
Posts: 188
Location: Sweden
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..what count to 10 said plus the fact that you need some sort of absorbant material in the duct, or it will work as a perfect reflector, reflecting energy in all directions that the intake can be seen from..
The duct gets slightly longer when the air intake is up front, this gives a relatively smoother curvature of the intake duct (to hide the engine face) wich is beneficial from a loss point of view.
If you are interested in the fundamentals here is a short document to read:
http://www.microwaves101.com/encycloped ... 0(rcs).pdf
my 5 cent |
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mcraptor
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Posted: Feb 05, 2013 - 09:59 PM
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Banned
Joined: Nov 16, 2012 - 04:22 PM
Posts: 202
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edpop wrote:
RCS is obviously the most important thing going for todays fighters.....or lack of it. All of the fighters lately have big air intakes stuck to the side or the bottom of the fuselage. Looking at the F-86 Sabre or the F-84 Thunderjet of the fifties where the intake is in the front of the fuselage would this have any benefit of reducing RCS???
Where would the radar go? |
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SpudmanWP
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Posted: Feb 05, 2013 - 10:22 PM
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Elite 3K
Joined: Oct 12, 2006 - 08:18 PM
Posts: 4275
Location: California
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