The culmination of Soviet experiments, the 380-ton Lun was classed as an ekranoplan—a ground-effect vehicle most at home up to 16 feet in the air, its eight turbofan engines hurtling it along at 340 mph. It entered service in 1987 but the collapse of the Soviet Union led to the project’s abandonment in the 1990s.

Holy schnikees.
Flying at 16 feet? What happens when it comes to a hill or mountain?
Are those armaments on it? Maybe it would blow up the hill or mountain.
AKA, the Caspian Sea Monster