trials for many reasons, the main one being that the V-12's most important intended mission no longer existed, i.e. the rapid deployment of heavy strategic ballistic missiles. This also led to a reduction in Antonov An-22 production. In May–June 1971, the first prototype V-12 SSSR-21142 made a series of flights over Europe culminating in an appearance at the 29th Paris Air Show at Le Bourget wearing exhibit code H-833. All development on the V-12 was stopped in 1974. The first prototype remained at the Mil Moscow Helicopter Plant in Panki-Tomilino, Lyuberetsky District near Moscow and is still there today (7 March 2017) at . The second prototype was donated to Central Air Force Museum east of Moscow for public display. World records Records are certified by the Fédération Aéronautique Internationale. The V-12 first prototype has held eight world records, four of which are still current, in the FAI E1 General class for rotorcraft powered by turbine engines. The aircraft was crewed by: 22 February 1969 Pilot - Vasily Kolochenko Crew - L.V. Vlassov, V.V. Journaliov, V.P. Bartchenko, S.G. Ribalko, A.I. Krutchkov 6 August 1969 Pilot - Vasily Kolochenko Crew - L.V. Vlassov, V.V. Juravlev, V.P. Bartchenkov, S.G. Ribalko, A.I. Krutchkov Variants V-12 OKB designation of the two prototypes of the proposed Mi-12 production version. Mi-12 Designation reserved for the expected production version. Mi-12MA further proposed refinement of the V-16 with two Soloviev D-30V (V - Vertolyotny - helicopter) turboshafts driving six bladed rotors, to transport over or over . The Mi-12M was cancelled at the mock-up stage when the V-12 development programme was cancelled. Specifications (V-12) See also Hotelicopter Yakovlev VVP-6 References Notes Bibliography External links Mil V-12 data and photos at aviation.ru about Mil V-12 CCCP-21142 at Avia-dejavu.net Mil Mi-12 'Homer' on Airliners.net Mil-12 video in English V-12 1960s Soviet military transport aircraft Mil aircraft Soviet inventions 1960s Soviet helicopters Transverse rotor helicopters Four-turbine helicopters Aircraft first flown in 1968 Military transport helicopters