Northrop Grumman has revealed  that its X-47B unmanned combat air vehicle (UCAV) is already half way through final assembly, as it offers the aircraft for a US Navy carrier-based demonstrator programme.

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The US company began building two carrier-capable X-47Bs for the US Air Force/Navy Joint Unmanned Combat Air System (J-UCAS) demonstration, and continued work with company funding after that programme was cancelled last year. As these pictures show, the first vehicle is now taking shape at its Palmdale, California plant.

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Boeing and Northrop submitted proposals for the US Navy's $1 billion unmanned combat air system demonstrator (UCAS-D) on Monday. Boeing is offering a carrier-capable X-45N derivative of the land-based X-45C built but not flown under J-UCAS.

The UCAS-D contract will be awarded in July, and Northrop programme manager Scott Winship says the X-47B would fly in November 2008 if selected.

Northrop believes it has an advantage because the X-47B was designed from the outset for carrier operations. Powered by a Pratt & Whitney F100-220Um fighter engine, the 45,000lb-class vehicle can carry two 2,000lb weapons internally, with a 2,800nm range and the capability for in-flight refuelling

Source: FlightGlobal.com