A-90 Orlyonok
The A-90 Orlyonok (Russian: Орлёнок, English: "Eaglet") is a Soviet "ekranoplan" - a ground effect vehicle - that was designed by Rostislav Evgenievich Alexeev (1916-1980) of the Central Hydrofoil Design Bureau.
The A-90 uses ground effect to fly a few meters above the surface. The Russians classify it as Ekranoplan Class B - it can achieve an altitude of 3,000 m (9,800 ft), placing between Class A - which is limited to ground effect, and Class C, which exploits the ground effect only during take-offs and landings.
Read more about A-90 Orlyonok: History, Development and Design, Production, Operators, Specifications (A-90)