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Message: <blockquote data-quote="blackkite" data-source="post: 309697" data-attributes="member: 661">Hi!http://www.airwar.ru/enc/glider/avf4.html"The construction of the training AMF-4 began in March 1924 in the Institute of Communication courses, which defined the name of the glider "Rabfakovets". According to the scheme and design, "Rabfakovets" was the further development of the "Mastyazhart" glider and was sometimes called AMF-time of 6 months. From his predecessor, he was marked by a large area and an extension of the wing, as well as a gondola in which the cockpit was stationed. Compared to the "Mastjazhartom", the cockpit was forwarded against the wing, allowing the centre to be moved and the longitudinal stability of the glider improved. The glider was completed in May 1924."http://arsenal-info.ru/b/book/2364886708/3</blockquote>

Verification: What year did the first man go to space? (answer has 4 numbers)