The SM-1 was the first of many WIG aircraft developed by Alexeyev for the Soviet Union. The SM-1 had its first flight in July of 1961. The SM-1 continued to do tests until it’s unfortunate destruction in 1962. Despite this, the SM-1 helped the Soviet Union create multiple Ekranoplans such as the KM testbeds and the A-90.
Stats:
Top speed: 270 kph (168Mph, 145 knots)
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