View Full Version : Stealth aircraft use silver in the finish?
midnight rambler
5th May 2011, 01:21 AM
Very interesting.
the helicopter’s tail features stealth-configured shapes on the boom and the tail rotor hub fairings, swept stabilizers and a 'dishpan' cover over a five-or-six-blade tail rotor. It has a silver-loaded infrared suppression finish similar to that seen on V-22s*."
*I'm guessing they meant "F-22s".
Also it's very curious why the Pakistanis would go to such lengths to keep anyone from getting a good look at the very interesting looking tail rotor. Why would they do that for someone who just disrespected them big time?
http://l1.yimg.com/a/i/ww/news/2011/05/04/helicopter.jpg
Serpo
5th May 2011, 02:17 AM
Son of Dave has posted a good shot of it on this thread..http://gold-silver.us/forum/general-discussion/here%27s-the-official-bin-laden-photo/
this shot isnt as good
osoab
5th May 2011, 03:27 AM
Here are a few picks.
http://i.dailymail.co.uk/i/pix/2011/05/03/article-1382859-0BE1F64C00000578-384_470x423.jpg
http://i.dailymail.co.uk/i/pix/2011/05/03/article-1382859-0BE1E4AC00000578-295_470x423.jpg
http://i.dailymail.co.uk/i/pix/2011/05/03/article-1382859-0BE1E40F00000578-506_470x423.jpg
tekrunner
5th May 2011, 05:09 AM
looks like a bunch of junk designed to look special
gunDriller
5th May 2011, 07:31 AM
looks like a bunch of junk designed to look special
you just described the entire American defense industry.
as far as "stealth coatings", the way it works is, a pure epoxy part will not absorb radar signals the way an epoxy-iron part will.
the addition of iron to the epoxy before casting, means that it will absorb microwave energy (this is one of the ways they make precision microwave components for lab use - when they need something that will absorb a lot of energy coming off a microwave amplifier.)
in other words, you need to add something that is partially conductive for it to absorb microwave energy. if it's pure metal, the energy is reflected (not good for military applications.) if it's pure plastic, the radio-waves go right through.
as far as the use of silver - hmmm ...
Awoke
5th May 2011, 09:14 AM
looks like a bunch of junk designed to look special
Like the junk they placed on the pentagon lawn that was supposed to represent "airplane fusilage".
:oo-->
tekrunner
5th May 2011, 09:50 AM
looks like a bunch of junk designed to look special
Like the junk they placed on the pentagon lawn that was supposed to represent "airplane fusilage".
:oo-->
Top secret technology was used to kill Emmanuel Goldstein so it all must be real! Don't denegrate the victims of 9/11...America, fuck yeah!
The more I look at that pic the more I think it was assembled with multiple teams of two people in different shifts. One person would chug the Jack Daniels through a beer bong and decide how things should be put together then the other person who was sober would weld the crap left over from an episode of junkyard wars.
tekrunner
5th May 2011, 09:57 AM
looks like a bunch of junk designed to look special
you just described the entire American defense industry.
as far as "stealth coatings", the way it works is, a pure epoxy part will not absorb radar signals the way an epoxy-iron part will.
the addition of iron to the epoxy before casting, means that it will absorb microwave energy (this is one of the ways they make precision microwave components for lab use - when they need something that will absorb a lot of energy coming off a microwave amplifier.)
in other words, you need to add something that is partially conductive for it to absorb microwave energy. if it's pure metal, the energy is reflected (not good for military applications.) if it's pure plastic, the radio-waves go right through.
as far as the use of silver - hmmm ...
*can't wait for 3d printable semiconductors to mature* * :P drools *
Your post reminds me of TNE's threads on organite. Stealth tech essentially sounds like nothing more then an inductive load.
Son of Dave
5th May 2011, 11:53 AM
LOL Stealth black helicopters!
I should start writing for Clancey, naah I'd have to have a head injury first.
http://www.msnbc.msn.com/id/42912904/ns/world_news-death_of_bin_laden
Secret, stealth chopper in compound wreckage?
Photos of Black Hawk blown up at bin Laden's compound reveal modifications
WASHINGTON — Images of the wreckage of the helicopter left behind at Osama bin Laden's compound by U.S. forces have prompted speculation that the chopper is a secret, highly-modified version of the military's iconic Black Hawk.
The stricken aircraft, which commandos blew up at the scene, appears to be a long-rumored stealth helicopter, NBC News reported; a Black Hawk modified to reduce rotor noise and make it more difficult to detect by radar.
Pentagon officials have declined to comment as did Sikorsky, the helicopter's manufacturer.
Aviation Week reported that the chopper's tail appears to be highly modified compared to a standard H-60 Black Hawk. The report noted that stealth features on a helicopter usually aim to dampen rotor noise and reduce infrared signals.
Noise reduction can be accomplished by adding blades to the rotors and changing the way the pilot flies the chopper, such as flying in a manner to reduce the rotor's rpm, the report said.
As for reducing the likelihood of the aircraft chopper giving off infrared signals, Aviation Week pointed to an earlier helicopter prototype that had a complex exhaust system and fresh air ejectors to lessen the aircraft's heat signals.
If the modifications did reduce the helicopter's sound, the raid still was noisy enough to attract attention. A computer programmer, Sohaib Athar , was startled by the noise and posted a note to Twitter: "Helicopter hovering above Abbotabad at 1AM (is a rare event)."
Son of Dave
5th May 2011, 12:00 PM
Also it's very curious why the Pakistanis would go to such lengths to keep anyone from getting a good look at the very interesting looking tail rotor. Why would they do that for someone who just disrespected them big time?
They don't wanna derail that sweet gravy train they've got comin from Uncle Sugar. Every time they need a little fix, think of a guy with an Indian voice calling Hillary:
"Oh yes dear Miss Hillary Clinton, we have a very grave concern about our nuclear storage facility it is in grave danger of men from Al-Cacooda, err, Al-Cicada? No! NO! Al-Quaeda! YES. We are needing more funds to make the base safe yes? You have bank routing number? Yes?"
"We'll also keep better tabs on Al-Cacooda too, much better than last time, sorry! Yes!"
Awoke
5th May 2011, 12:47 PM
The stricken aircraft, which commandos blew up at the scene
Funny, but those remains don't really looked charred and burnt as a result of an explosion. At least, not to me.
gunDriller
5th May 2011, 01:09 PM
The stricken aircraft, which commandos blew up at the scene, appears to be a long-rumored stealth helicopter, NBC News reported; a Black Hawk modified to reduce rotor noise and make it more difficult to detect by radar.
Pentagon officials have declined to comment as did Sikorsky, the helicopter's manufacturer.
Aviation Week reported that the chopper's tail appears to be highly modified compared to a standard H-60 Black Hawk. The report noted that stealth features on a helicopter usually aim to dampen rotor noise and reduce infrared signals.
Noise reduction can be accomplished by adding blades to the rotors and changing the way the pilot flies the chopper, such as flying in a manner to reduce the rotor's rpm, the report said.
As for reducing the likelihood of the aircraft chopper giving off infrared signals, Aviation Week pointed to an earlier helicopter prototype that had a complex exhaust system and fresh air ejectors to lessen the aircraft's heat signals.
no rumors necessary.
the Comanche attack helicopter was designed from the ground up to be stealth - at the same time that the F-22 was designed.
the electronics was designed by the same people. i worked on both sets of avionics.
it is logical to use a stealth copter for a mission like the faux or real assassination of OBL.
the Comanche was cancelled in about 2000 - 2002. though i wouldn't be surprised if the program was re-started. it has exactly the features the US military says they need - stealth, state of the art electronics, goes as fast as a helicopter can go, adapted to urban environments, doesn't need a runway.
http://en.wikipedia.org/wiki/Boeing/Sikorsky_RAH-66_Comanche
http://www.military-today.com/helicopters/rah66_comanche.jpg
Awoke
5th May 2011, 01:34 PM
That helicopter doesn't look like the same machine that those parts above came from.
mick silver
5th May 2011, 01:38 PM
i heard it did not make alot of noise . the new helicopter sound like it leaving when it coming at you
midnight rambler
5th May 2011, 02:32 PM
There is a means to cancel out sound waves by throwing out sound waves at the same frequencies synced at something like 1/2 wave off of the sound which you're trying to cancel out. One car manufacturer is now using that sort of technology in their engine compartment, Acura I think. Anyway, someone I know and trust who had a very high security clearance when he was in the service related to me how he was exposed (someone was showing it off to him) to a helicopter which hardly made any sound when hovering nearby in the early '90s. He didn't even know it was there until the other party pointed it out to him.
gunDriller
5th May 2011, 06:05 PM
That helicopter doesn't look like the same machine that those parts above came from.
true. i just like the Comanche, as a machine.
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