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Alexeyev SM-5 ekranoplan (1/4-scale KM test craft)
What are the dimensions of the Alexeyev SM-5 ekranoplan? · Modern device · basis: Secondary source: Old Machine Press (copy of the maker's figures; the maker publishes none directly)
Also called: sm-5 ekranoplan dimensions, sm-5 alexeyev size, sm-5 scale km, sm-5 wingspan, alexeyev test ekranoplan sm-5, СМ-5 экраноплан, sm-5 ekranoplan especificaciones, SM-5 Bodeneffekt Versuchsträger
Exact dimensions. True size, with no printing tolerance added.
- length
- 18000 mm
- width
- 9500 mm
- height
- 5500 mm
Notes
- The SM-5 was a quarter-scale manned model of the KM used to prove the configuration before the full-size craft flew; it was lost in a 1964 accident.
- The file is an 18.0 × 9.5 × 5.5 m box from Old Machine Press. Wing area is not published.
- Marked secondary (magazine-style history site).
- 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.
Alexeyev SM-5 ekranoplan size chart
| dimension | value |
|---|---|
| Length | 18.0 m (59 ft 1 in) |
| Wingspan | 9.5 m (31 ft 2 in) |
| Height | 5.5 m (18 ft 1 in) |
| Maximum weight | 7,300 kg (16,094 lb) |
| Engines | 2 × Mikulin KR7-300 jet engines |
| Ground-effect flying height | 1–3 m (3–10 ft) |
| Role | 25% scale aerodynamic test craft for the KM |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Old Machine Press | Alexeyev KM Ekranoplan – Caspian Sea Monster (SM-5 section) | web | Publisher's page; dimensions are facts |
Free files
★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| alexeyev-sm-5-ekranoplan-envelope | Envelope 18000 × 9500 × 5500 mm (Real craft: overall length × wingspan × overall height as published) | STEP · STL |
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=alexeyev-sm-5-ekranoplan
Questions
How big was the SM-5?
18.0 m long, 9.5 m wingspan and 5.5 m high, with a 7,300 kg maximum weight.