{ "version": "2026-10-20", "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.", "slug": "lun-class-ekranoplan-md-160", "name": "Lun-class ekranoplan MD-160 (Project 903)", "kind": "modern", "category": "Ground-effect craft", "group": "Soviet and Russian ekranoplans (large)", "year": null, "question": "What are the dimensions of the Lun-class ekranoplan (MD-160)?", "tags": [ "ekranoplan", "wing in ground effect", "wig craft", "ground effect vehicle", "soviet and russian ekranoplans (large)" ], "aliases": [ "lun ekranoplan dimensions", "md-160 ekranoplan size", "lun class wingspan", "lun ekranoplan length", "project 903 ekranoplan specs", "lun ekranoplan height", "how big is the lun ekranoplan", "lun ekranoplan weight", "ekranoplano lun dimensiones", "Lun Bodeneffektfahrzeug Abmessungen", "ekranoplano lun dimensões" ], "overall_mm": { "length": 73800, "width": 44000, "height": 19200 }, "official_cad": false, "xem_status": "free-files", "les": false, "free_files": 1, "url": "https://xemstudio.com/objects/lun-class-ekranoplan-md-160/", "sheet_txt": "https://xemstudio.com/objects/lun-class-ekranoplan-md-160/sheet.txt", "sheet": { "basis": "Secondary source: Wikipedia, GlobalSecurity.org, Old Machine Press (copy of the maker's figures; the maker publishes none directly)", "overall_mm": { "length": 73800, "width": 44000, "height": 19200 }, "notes": [ "MD-160 is the only completed Lun-class missile ekranoplan; it served with the Caspian Flotilla from 1987 and is being restored as an exhibit at Patriot Park, Derbent.", "The file is a 73.8 × 44.0 × 19.2 m box; Wikipedia, GlobalSecurity and Old Machine Press agree on these three sizes. Empty weight differs between sources (286 t vs 243 t).", "No manufacturer drawing is public, so the entry is marked secondary.", "True size, no printing tolerance added. Only published numbers are used; anything not published is said so.", "Secondary source: the numbers come from a retailer or magazine copy of the maker's specification." ], "table": { "columns": [ "dimension", "value" ], "rows": [ [ "Length", "73.8 m (242 ft 2 in)" ], [ "Wingspan", "44.0 m (144 ft 4 in)" ], [ "Height", "19.2 m (63 ft 0 in)" ], [ "Wing area", "550 m²" ], [ "Draught", "2.5 m (8 ft 2 in)" ], [ "Empty weight", "286,000 kg (Wikipedia); 243,000 kg (Old Machine Press)" ], [ "Maximum take-off weight", "380,000 kg (GlobalSecurity: 400 t take-off weight)" ], [ "Powerplant", "8 × Kuznetsov NK-87 turbofans, 127.4 kN (28,600 lbf) each, on the forward canard pylon" ], [ "Maximum speed", "550 km/h" ], [ "Cruise speed", "450 km/h at 2.5 m" ], [ "Range", "2,000 km" ], [ "Ground-effect flying height", "1–5 m (GlobalSecurity, Old Machine Press)" ], [ "Armament", "6 × P-270 Moskit anti-ship missile launchers; 4 × 23 mm PI-23 cannon in two twin turrets" ], [ "Crew", "15 (6 officers, 9 enlisted)" ] ] } }, "sheet_text": "Lun-class ekranoplan MD-160 (Project 903) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/lun-class-ekranoplan-md-160/ (sheet CC BY 4.0)\nBasis: Secondary source: Wikipedia, GlobalSecurity.org, Old Machine Press (copy of the maker's figures; the maker publishes none directly)\nCatalog version: 2026-10-20\n\nOverall (mm): length 73800, width 44000, height 19200\n- MD-160 is the only completed Lun-class missile ekranoplan; it served with the Caspian Flotilla from 1987 and is being restored as an exhibit at Patriot Park, Derbent.\n- The file is a 73.8 × 44.0 × 19.2 m box; Wikipedia, GlobalSecurity and Old Machine Press agree on these three sizes. Empty weight differs between sources (286 t vs 243 t).\n- No manufacturer drawing is public, so the entry is marked secondary.\n- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.\n- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.\n\ndimension value\nLength 73.8 m (242 ft 2 in)\nWingspan 44.0 m (144 ft 4 in)\nHeight 19.2 m (63 ft 0 in)\nWing area 550 m²\nDraught 2.5 m (8 ft 2 in)\nEmpty weight 286,000 kg (Wikipedia); 243,000 kg (Old Machine Press)\nMaximum take-off weight 380,000 kg (GlobalSecurity: 400 t take-off weight)\nPowerplant 8 × Kuznetsov NK-87 turbofans, 127.4 kN (28,600 lbf) each, on the forward canard pylon\nMaximum speed 550 km/h\nCruise speed 450 km/h at 2.5 m\nRange 2,000 km\nGround-effect flying height 1–5 m (GlobalSecurity, Old Machine Press)\nArmament 6 × P-270 Moskit anti-ship missile launchers; 4 × 23 mm PI-23 cannon in two twin turrets\nCrew 15 (6 officers, 9 enlisted)\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Wikipedia: Lun-class ekranoplan — web — Publisher's page; dimensions are facts — https://en.wikipedia.org/wiki/Lun-class_ekranoplan\n- GlobalSecurity.org: Project 903 Lun – specifications — web — Publisher's page; dimensions are facts — https://www.globalsecurity.org/military/world/russia/903-specs.htm\n- Old Machine Press: Lun-class and Spasatel ekranoplans — web — Publisher's page; dimensions are facts — https://oldmachinepress.com/2019/12/05/lun-class-spasatel-ekranoplans\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/lun-class-ekranoplan-md-160/index.json\nAPI: https://xemstudio.com/api/geometry?object=lun-class-ekranoplan-md-160\n", "sources": [ { "publisher": "Wikipedia", "title": "Lun-class ekranoplan", "url": "https://en.wikipedia.org/wiki/Lun-class_ekranoplan", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "GlobalSecurity.org", "title": "Project 903 Lun – specifications", "url": "https://www.globalsecurity.org/military/world/russia/903-specs.htm", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "Old Machine Press", "title": "Lun-class and Spasatel ekranoplans", "url": "https://oldmachinepress.com/2019/12/05/lun-class-spasatel-ekranoplans", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false } ], "xem": { "status": "free-files", "sheet_free": true, "mesh_price_usd": null, "step_price_usd": null, "tolerance_mm": null }, "related": [ "alexeyev-km-caspian-sea-monster", "a-90-orlyonok-ekranoplan" ], "fits": [], "dimensions": "exact (nominal, no printing tolerance)", "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.", "mating": [], "faq": [ { "q": "How big is the Lun ekranoplan?", "a": "73.8 m long, 44.0 m wingspan and 19.2 m high." }, { "q": "What engines does the Lun use?", "a": "Eight Kuznetsov NK-87 turbofans of 127.4 kN thrust each, mounted on the forward pylon." } ], "files_license": null, "offers": [ { "file": "lun-class-ekranoplan-md-160-envelope", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/lun-class-ekranoplan-md-160/lun-class-ekranoplan-md-160-envelope.step", "stl": "https://xemstudio.com/files/hardware/lun-class-ekranoplan-md-160/lun-class-ekranoplan-md-160-envelope.stl", "note": "Envelope 73800 × 44000 × 19200 mm (Real craft: overall length × wingspan × overall height as published)" } ], "markdown": "https://xemstudio.com/objects/lun-class-ekranoplan-md-160/index.md" }