{ "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": "hoverwing-hw-20", "name": "Hoverwing HW-20 20-seat WIG craft (Fischer)", "kind": "modern", "category": "Ground-effect craft", "group": "Fischer AirFish and Hoverwing family", "year": null, "question": "What are the dimensions of the Hoverwing HW-20?", "tags": [ "ekranoplan", "wing in ground effect", "wig craft", "ground effect vehicle", "fischer airfish and hoverwing family" ], "aliases": [ "hoverwing hw-20 dimensions", "hoverwing 20 seat", "fischer hoverwing", "hw20 wig craft", "hoverwing wingspan", "Hoverwing Abmessungen", "hoverwing especificaciones", "hoverwing hw-20 length" ], "overall_mm": { "length": 23500, "width": 24100, "height": 5700 }, "official_cad": false, "xem_status": "free-files", "les": false, "free_files": 1, "url": "https://xemstudio.com/objects/hoverwing-hw-20/", "sheet_txt": "https://xemstudio.com/objects/hoverwing-hw-20/sheet.txt", "sheet": { "basis": "Secondary source: The Maldives National Journal of Research (H. Hameed, 2019), Flight International (copy of the maker's figures; the maker publishes none directly)", "overall_mm": { "length": 23500, "width": 24100, "height": 5700 }, "notes": [ "The HW-20 is Fischer Flugmechanik's 20-seat Hoverwing design with a static-air-cushion take-off aid, marketed for Korea.", "The file is a 23.5 × 24.1 × 5.7 m box from Table 3 of Hameed 2019 (company data).", "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", "23.5 m" ], [ "Wingspan", "24.1 m" ], [ "Height", "5.7 m" ], [ "Maximum take-off weight", "9,500 kg" ], [ "Empty weight", "6,504 kg" ], [ "Engines", "2 × 559 kW (2 × 750 bhp)" ], [ "Passengers", "20" ], [ "Speed (Flight International)", "90 kt (170 km/h)" ], [ "Range (Flight International)", "500 km" ] ] } }, "sheet_text": "Hoverwing HW-20 20-seat WIG craft (Fischer) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/hoverwing-hw-20/ (sheet CC BY 4.0)\nBasis: Secondary source: The Maldives National Journal of Research (H. Hameed, 2019), Flight International (copy of the maker's figures; the maker publishes none directly)\nCatalog version: 2026-10-20\n\nOverall (mm): length 23500, width 24100, height 5700\n- The HW-20 is Fischer Flugmechanik's 20-seat Hoverwing design with a static-air-cushion take-off aid, marketed for Korea.\n- The file is a 23.5 × 24.1 × 5.7 m box from Table 3 of Hameed 2019 (company data).\n- 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 23.5 m\nWingspan 24.1 m\nHeight 5.7 m\nMaximum take-off weight 9,500 kg\nEmpty weight 6,504 kg\nEngines 2 × 559 kW (2 × 750 bhp)\nPassengers 20\nSpeed (Flight International) 90 kt (170 km/h)\nRange (Flight International) 500 km\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- The Maldives National Journal of Research (H. Hameed, 2019): The design of a four-seat reverse delta WIG craft, Table 3 — web — Publisher's page; dimensions are facts — https://mnjr.mnu.edu.mv/journal/article/download/97/66\n- Flight International: Germans plan WIG vehicle — web — Publisher's page; dimensions are facts — https://www.flightglobal.com/germans-plan-wig-vehicle/43982.article\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/hoverwing-hw-20/index.json\nAPI: https://xemstudio.com/api/geometry?object=hoverwing-hw-20\n", "sources": [ { "publisher": "The Maldives National Journal of Research (H. Hameed, 2019)", "title": "The design of a four-seat reverse delta WIG craft, Table 3", "url": "https://mnjr.mnu.edu.mv/journal/article/download/97/66", "formats": [ "web" ], "license": "Publisher's page; dimensions are facts", "license_verified": true, "hosted": false }, { "publisher": "Flight International", "title": "Germans plan WIG vehicle", "url": "https://www.flightglobal.com/germans-plan-wig-vehicle/43982.article", "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": [ "fischer-airfish-3a", "wigetworks-airfish-8", "flightship-fs-8-dragon-commuter" ], "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 many passengers does the HW-20 carry?", "a": "20." } ], "files_license": null, "offers": [ { "file": "hoverwing-hw-20-envelope", "formats": [ "step", "stl" ], "price_usd": 0, "license": "CC BY 4.0 (Xem Studio)", "step": "https://xemstudio.com/files/hardware/hoverwing-hw-20/hoverwing-hw-20-envelope.step", "stl": "https://xemstudio.com/files/hardware/hoverwing-hw-20/hoverwing-hw-20-envelope.stl", "note": "Envelope 23500 × 24100 × 5700 mm (Real craft: overall length × wingspan × overall height as published)" } ], "markdown": "https://xemstudio.com/objects/hoverwing-hw-20/index.md" }