The A-90 Orlyonok (Russian: Îðë¸íîê, 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 (3,300 yd), placing between Class A - which is limited to ground effect, and Class C, which exploits the ground effect only during take-offs and landings. The last image is one of the references I used for comparison.