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The KC -135A made its maiden flight on August 31, 1956 and was still in front line service some 60 years later. What began as a jet-powered replacement for the KC -97 to refuel Strategic Air Command's growing B-47 and B-52 bomber fleet soon evolved into America's first military heavy jet transport, an airborne command post platform, a testbed that enabled scientists to study the Earth, send men to the Moon and understand the power of the atom. Other variants of the KC -135 included a reconnaissance airframe that monitors arms agreements, gathers intelligence to understand the intentions and capabilities of potential enemies and provides real-time intelligence in combat.This is a revised and expanded third edition of the definitive study of this remarkable aircraft. The author is a former USAF pilot qualified on 17 types of KC -135s, EC -135s, and RC -135s, who brings both personal experience and a broad historical understanding to this definitive work on one of the most significant mil

As early as 1979, Soviet aircraft designers started work on a programme called I-90, a fighter for the 1990s. Two Soviet aircraft design bureaux took on the task, Mikoyan and Sukhoi. Work began in 1983 but with the dissolution of the Soviet Union the project stalled.In 2002 the Russian government kicked off a new programme under which Sukhoi began development of what was then known as PAK FA (Future Tactical Aviation Aircraft System). Known in house as the T-50, this aircraft strongly resembled the American F-22 Raptor in overall appearance.The first prototype took to the air on 29th January 2010 and in 2017 the fighter was allocated the service designation Su-57. In 2018 the aircraft had its combat debut when four of the prototypes were briefly deployed to Syria during the Russian campaign against the IS terror network in that country. Production was officially launched in May 2019, with the Russian Air Force having 70-plus on order.The book charts the development and trials history o