B-52H:The Plane That Challenged China

The US Air Force sent two B-52H Stratofortress bombers through China's newly declared Air Defence Identification Zone over the Senkaku Islands in the East China Sea on Monday.China,Japan and Taiwan lay claim to the islands.The previously scheduled training mission went off without incident,despite the American refusal to heed Chinese requirements to file a flight plan;radio frequencies;and transponder information-or face emergency military measures.There was no communication with China during the flight.
The B-52s are part of the 20th Bomber Squadron and flew out of Andersen Air Force Base,Guam.They were deployed there in August from Barksdale AFB,Louisiana in accordance with the new US defence strategy of rebalancing forces to the Pacific.The Air Force has 76 of the venerable bombers,which were built in 1962.They can fly at a speed of up to 650 mph(Mach 0.84) at an altitude of up to 50,000 ft/15,151.5 m.They have a crew of 5,and can fly 8800 miles/7652 nautical miles unrefueled.
Armed with precision-guided bombs and air-launched cruise missiles,it flies both high altitude strategic bombing,interdiction and close air support missions.It can assist the US Navy,as it is highly effective at ocean surveillance,as well as minelaying and anti-ship operations.In 2 hours,2 B-52s can monitor 140,000 sq mi/364,000 sq km of ocean.The planes can serve till 2040,the latest engineering studies show.
The bombers,which are under Global Strike Command,have been receiving a B-52 Software Block(BSB) upgrade this autumn.This will allow them to fully utilise new equipment and advanced weapons as they are introduced.As well,existing systems can be improved and enhanced by the upgrade.Such items as the Offensive Avionics System;GPS;GPS Interface Unit;and Advanced Targeting Pod computer can be enhanced by the upgrade.
New lines of code are created to access new weapon or equipment capabilities such as the new ability to attack fast moving ground targets with smart weapons,Global Strike Command program analyst Nathan Dawn said.The upgrade can also correct software errors and patch deficiencies not found during development and testing.When errors are found in new and complex software,they are documented and prioritised for repair in the next upgrade cycle.
Boeing was the original manufacturer of the B-52H.
Boeing(BA)