# Grunin ESKA-1 experimental ekranoplan (2-seat)

> What are the dimensions of the ESKA-1 ekranoplan?

- Category: Ground-effect craft › Soviet experimental and scale prototypes
- Kind: Modern device
- Basis: Secondary source: Hassan Hameed (copy of en.topwar.ru article), The Maldives National Journal of Research (H. Hameed, 2019) (copy of the maker's figures; the maker publishes none directly)
- Page: https://xemstudio.com/objects/grunin-eska-1-ekranoplan/ · JSON: https://xemstudio.com/api/geometry?object=grunin-eska-1-ekranoplan · Plain text: https://xemstudio.com/objects/grunin-eska-1-ekranoplan/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 7800 | 6900 | 2200 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- ESKA-1 is E. P. Grunin's small Lippisch-type experimental ekranoplan from the Soviet amateur/institute scene of the 1970s.
- The file is a 7.80 × 6.90 × 2.20 m box from a performance table reproduced from a Topwar article (also tabulated in Hameed 2019).
- 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.

## Sizes

| dimension | value |
|---|---|
| Length | 7.80 m |
| Wingspan | 6.90 m |
| Height | 2.20 m |
| Wing area | 13.85 m² |
| Empty weight | 234 kg |
| Flight weight | 450 kg |
| Engine | M-63 piston, 32 hp (24 kW) |
| Maximum speed | 140 km/h |
| Cruise speed | 100 km/h |
| Range | 350 km |
| Ground-effect flying height | 300–1500 mm |
| Crew | 2 |

## Where the files are

- Hassan Hameed (copy of en.topwar.ru article): [Experimental ekranoplan ESKA-1](https://www.hassanhameed.com/wp-content/uploads/2023/05/Experimental-ekranoplan-ESKA-1.pdf) — web — Publisher's page; dimensions are facts
- The Maldives National Journal of Research (H. Hameed, 2019): [The design of a four-seat reverse delta WIG craft, Table 5](https://mnjr.mnu.edu.mv/journal/article/download/97/66) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/grunin-eska-1-ekranoplan/index.json

- grunin-eska-1-ekranoplan-envelope: [STEP](https://xemstudio.com/files/hardware/grunin-eska-1-ekranoplan/grunin-eska-1-ekranoplan-envelope.step) · [STL](https://xemstudio.com/files/hardware/grunin-eska-1-ekranoplan/grunin-eska-1-ekranoplan-envelope.stl) — Envelope 7800 × 6900 × 2200 mm (Real craft: overall length × wingspan × overall height as published)

## Questions

**How high does the ESKA-1 fly?**

300–1500 mm above the surface in ground effect.

## Fits with

- [Alexeyev SM-5 ekranoplan (1/4-scale KM test craft)](https://xemstudio.com/objects/alexeyev-sm-5-ekranoplan/)
- [Alexeyev SM-8 ekranoplan (second 1/4-scale KM test craft)](https://xemstudio.com/objects/alexeyev-sm-8-ekranoplan/)
- [Bartini Beriev VVA-14 (14M1P ground-effect amphibian)](https://xemstudio.com/objects/bartini-beriev-vva-14/)