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Surface Forces: Stealth Corvette Finally Comes Into View
   Next Article → WARPLANES: Boring, But Very Effective
December 29, 2009: After a decade of development, testing and extended sea trials, Sweden has finally put two of its Visby class "stealth" corvettes (HMS Helsingborg and HMS Härnösand) into service. This finally happened on December 16th.

With a hull made of carbon fiber material, and topside surfaces shaped to deflect radar, the Visby is hard to spot electronically. Travelling at less than 22 kilometers an hour (13 in rough seas), the Visby is practically invisible to radar.

The 650 ton ships are armed with a 57mm gun, plus eight RBS-15 anti-ship missiles (max range of 70 kilometers), as well as anti-submarine torpedoes, mines or depth charges. The crew is small (43)., but the ship can move fast (about 70 kilometers an hour) in all kinds of weather. The Visby had radar, sonar and thermal imaging equipment. The ship is 240 feet long, 34 feet wide and had a draught of only eight feet.

The Visby ships can also carry a helicopter, and is equipped with hull mounted and towed array sonars for hunting Russian subs off the Swedish coast. Propulsion is via waterjets, which makes the ships harder to detect by submarines. Five Visby class ships have been built, and all will be in service within three years. Many foreign navies have shown a lot of interest in the Visby technology.

Next Article → WARPLANES: Boring, But Very Effective
  

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cwDeici       12/29/2009 12:11:40 PM
Interesting.
 
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Paul_In_Houston       12/29/2009 12:48:15 PM
Traveling at less than 22 kilometers an hour (13 in rough seas), the Visby is practically invisible to radar.
 . . .
but the ship can move fast (about 70 kilometers an hour) in all kinds of weather
 
Is the wake (or bow wave) of a ship very visible on radar at higher speeds?
(I'm assuming that's the reason for the qualification above.)
 
-
 
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YelliChink       12/29/2009 2:14:42 PM
Yes, the wake of a fast-moving ship does make it onto radar screen.
 
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Nasty German Idiot       12/29/2009 6:27:25 PM

 
http://www.youtube.com/v/mbZUHpk2s8U&hl=de_DE&fs=1&border=1"> http://www.youtube.com/v/mbZUHpk2s8U&hl=de_DE&fs=1&border=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="500" height="405">
 
 Very nice ship.  
 
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trenchsol    they could, but will they ?   1/1/2010 2:03:56 PM
What's the use of those great ships when Swedes don't have guts to take action against Russian subs ? At least, they had no guts in the past, when Russian subs entered their waters.
 
DG

 
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FJV    What is it with you people?   1/1/2010 2:46:51 PM
What's the use of those great ships when Swedes don't have guts to take action against Russian subs ? At least, they had no guts in the past, when Russian subs entered their waters.
 
Sweden sinks a Russian sub during the height of the cold war and risks setting off WW3.
 
Why do you think all those Russian TU-95 Bear bombers entering Alaskan airspace were only photgraphed and not shot down?
 
Do you have a hole in you head?
 

 

 
 
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RtWingCon    Ruskies shot ours down   1/5/2010 12:27:48 AM
Why do you think all those Russian TU-95 Bear bombers entering Alaskan airspace were only photgraphed and not shot down?
 
Good question. Perhaps we considered those dumb bastards as crazy enough to start a WWIII because of a downed bomber in OUR airspace. However, the Soviets had no problem shooting down our aircraft numerous times whether in their airspace or not. The US Navy though didn't have a problem with "bumping" or rubbing soviet attack subs that got too close to our carrier fleets. Lots of metal at the bottom of the ocean because of that.
 
List of cold war shootdowns of US aircraft
 
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