X-47B bat-winged unmanned aircraft – Maiden flight

The US Navy X-47B UCAS-D (Unmanned Combat Air System Demonstration) successfully completed its first flight at Edwards AFB on February 4, 2011.

The flight which was conducted by a US Navy/Northrop Grumman test team, lasted 29 minutes. The flight test was aimed to provide test data to check the system software for guidance and navigation, and the aerodynamic control of the tailless drone. The X-47B is deemed to safely take off from, and land on the deck of an aircraft carrier.

Other flight tests should be performed to validate the airworthiness of the drone in Naval Air Station Patuxent River (NAS Pax River), Maryland till 2013. Here is the maiden flight video:

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Concorde crash trial

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Jet fuel R&D

Burning Passion Mark Laber, left, a University of Dayton research partner, examines the expansion of aircraft seals using synthetic fuels. One of the uses of current aviation fuel is to swell seals found throughout the aircraft. (U.S. Air Force photo/Staff Sgt. Desiree N. Palacios)

Airman Magazine – Jet fuel is strange. It needs to have seemingly contradictory properties to make it useful. It can’t freeze. It can’t have a low flashpoint or easily vaporize. Yet, it must have a tremendous amount of energy for its volume and lubricate and seal fuel lines in aircraft. In the more than 30 years the Air Force has been studying its primary aircraft fuel, known as JP-8, scientists are still learning new things.

READ FULL ARTICLE on www.af.mil

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