[quote][b][url=/v3/forum/%C3%A9tats-unis-31/topic/c-12-huron-rc-12x-guardrail-822/?post=45687#post-45687]pilou[/url] a dit le 05/01/2010 à 23:21 :[/b]

Je ne connaissais pas, je viens de découvrir cet appareil en lisant des news. 
Présentation : [url]http://www.globalsecurity.org/intell/systems/guardrail.htm[/url]

La news en question : 
[url=http://www.airforcesmonthly.com/view_news.asp?ID=1362]RC-12 Guardrail upgrade progresses[/url]

[quote]The US Army has completed initial testing on the first RC-12X Guardrail aircraft.
 

January 5: The US Army has completed electromagnetic interference and electromagnetic compatibility testing on the first RC-12X Guardrail aircraft, bringing it closer to achieving operational capability.

Based on the C-12 Huron, the military version of the Beechcraft King Air 200, the RC-12 Guardrail is the US Army’s primary Signal Intelligence (SIGINT) airborne system. The US Army operates 48 RC-12s in six different versions; the RC-12N Guardrail I, RC-12P Guardrail II, RC-12H Guardrail III, RC-12K Guardrail IV, RC-12D Guardrail V and RC-12Q Guardrail Common Sensor, equipping six units plus a training squadron in the USA.

Northrop Grumman is overseeing the $462 million RC-12X Guardrail modernisation programme that introduces significant hardware and software improvements and will provide a common standard for the fleet. It is scheduled for initial release in 2010, extending the useful life of the RC-12 to at least 2020.[/quote]

Pour info, le C-12 Huron, c´est ça : 
[url]http://www.globalsecurity.org/military/systems/aircraft/c-12.htm[/url][/quote]