Challenger 2 – Main Battle Tank

CHALLENGER 2

The Challenger 2 is the first British Army tank since World War II to be designed, developed and produced exclusively by a single prime contractor, Vickers Defence Systems, with set reliability goals laid down in the fixed price contract. Challenger 2 was designed and manufactured at both Vickers sites, Barnbow Leeds and Scottswood Newcastle.

The hull and automotive parts of the Challenger 2 are based upon its predecessor Challenger 1, but Challenger 2 incorporates over 150 improvements aimed at increasing reliability and maintainability. The turret of Challenger 2 is a totally new design. Armour is an uprated version of Challenger 1′s Chobham armour. The Challenger 2 is the best protected tank in NATO (10) incorporating Chobham second-generation armour plating. Its NBC (nuclear, biological and chemical protection) system is capable of dealing with all known threats and, for the first time in any British tank, the crew compartment has both a heating and a cooling system.

B – 2 “Spirit” Strategic Bomber

“Stealth” bombers B-2 firstly attempted great interest when appeared first information in public press about ability of creation “stealth” bomber in USA at the end of 70-ties. Firstly classified and modernized first bomber was officially presented at the press conference in Washington on 22 July 1980. The greatest part of information remained secret and the conference was organized to prevent spreading title-tattle information filling public press for a last few months.

In 1975 US Air Force was seriously interested in “stealth” aircraft. It made contract with Lockheed corporation to project and produce “stealth” fighters. There were created some models and one of them got indexation F-117. Later in 1985 US Air Force made order in Northrop for “stealth” bomber production. Northrop’s experience in low radar visibility technology was more than 50 years then.

Russian T-90 – The most powerfull Russia Tank

Russian T-90/T90S Main Battle Tank.

Main battle tank T-90 was developed in the early 90-ties by Uralvagonzavod plant design bureau (leading designer V.Potkin). It was published as a main Russian army tank till the year 2005. Since 1997 it’s export modification T-90S has been offered in the world’s military markets. In “Military Ordnance” magazine opinion T-90S took 7-th place in the world best main battle tanks rating in 1998.

Kalashnikov AK (AK-47) AKS, AKM and AKMS assault rifles (USSR)

The first Soviet ‘true’ intermediate cartridge (7.62×41 M43) assault rifle, Sudaev AS-44, as tested in 1944. Unfortunately, Sudaev fell severely ill in 1945 and died next year before finalizing his design.

Tokarev 7.62×41 experimental assault rifle, as tested in late 1945

Armalite / Colt AR-15 / M16 assault rifle (USA)

original military issue AR-15 / M16 rifle (circa 1965), with no forward assist and with the original three-prong flash hider

M16A1 rifle, with the forward assist, “bird cage” flash hider and the 20 rounds magazine (1967)

AIR FORCE ONE

The Air Force One

No matter where in the world the President travels, if he flies in an Air Force jet, the plane is called Air Force One. Technically, Air Force One is the call sign of any Air Force aircraft carrying the President. In practice, however, Air Force One is used to refer to one of two highly customized Boeing 747-200B series aircraft, which carry the tail codes 28000 and 29000. The Air Force designation for the aircraft is VC-25A.

Air Force One is one of the most recognizable symbols of the presidency, spawning countless references not just in American culture but across the world. Emblazoned with the words “United States of America,” the American flag, and the Seal of the President of the United States, it is an undeniable presence wherever it flies or docks.

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