Mankind created a lot of machines.… An airplane having mastered the laws of the air stopped being a miracle. Way before that ships tamed the oceans. But restless minds keep on creating new machines. And there you are – a vessel that can take off from water not really leaving it. What is it? A sailing aircraft, or a flying vessel? What kind of a technical wonder is that, existing at the edge of two environments?

Bonus material: SM-1, SM-2, Be-1, VVА-14, Skat, Kаlmar, Омаr, Jayran, Zubr, KM, SM-5, SM-8, SM-6, Оrlyonok, Lun, Volga-2, Strizh, Ivolga, Aquaglide-5.