https://en.wikipedia.org/wiki/Lun-class_ekranoplan

Only one built, and it’s still on the shore of the Caspian sea:

• OpenStreetMap: https://www.osm.org/?mlat=41.94067&mlon=48.37885&zoom=18&layers=M
• Gmaps satellite: https://www.google.com/maps?ll=41.94067,48.37885&q=41.94067,48.37885&hl=en&t=h&z=18

General characteristics

• Crew: 15 (6 officers, 9 enlisted)
• Capacity: 137 t (302,000 lb)
• Length: 73.8 m (242 ft 2 in)
• Wingspan: 44 m (144 ft 4 in)
• Height: 19.2 m (63 ft 0 in)
• Wing area: 550 m2 (5,900 sq ft)
• Empty weight: 286,000 kg (630,522 lb)
• Max takeoff weight: 380,000 kg (837,757 lb)
• Powerplant: 8 × Kuznetsov NK-87 turbofans, 127.4 kN (28,600 lbf) thrust each

Performance

• Maximum speed: 550 km/h (340 mph, 300 kn)
• Cruise speed: 450 km/h (280 mph, 240 kn) at 2.5 m (8 ft)
• Range: 2,000 km (1,200 mi, 1,100 nmi)
• Service ceiling: 5 m (16 ft) in ground effect

Armament

• Guns: two 23mm Pl-23 cannon in a twin tail turret and two 23mm Pl-23 cannon in a twin turret under forward missile tubes
• Missiles: six launchers for P-270 Moskit Sunburn antiship missiles