# Boeing Pelican ULTRA ground-effect transport (concept)

> What are the dimensions of the Boeing Pelican?

- Category: Ground-effect craft › Concept wingships (unbuilt)
- Kind: Modern device
- Basis: Secondary source: Wikipedia, GlobalSecurity.org (copy of the maker's figures; the maker publishes none directly)
- Page: https://xemstudio.com/objects/boeing-pelican-ultra/ · JSON: https://xemstudio.com/api/geometry?object=boeing-pelican-ultra · Plain text: https://xemstudio.com/objects/boeing-pelican-ultra/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
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## Overall (mm)

| length | width |
|---|---|
| 122000 | 152400.0 |

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

## Notes

- The Pelican was Boeing Phantom Works' 2002 study for an ultra-large cargo aircraft that would cruise in ground effect over water.
- Only a 122 × 152.4 m plan-view envelope is modelled because overall height is not published. Figures are from magazine sources via Wikipedia.
- 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 | 400 ft 3 in (122 m) |
| Wingspan unfolded | 500 ft (152.4 m) |
| Wingspan folded | 340 ft (published as 100 m) |
| Effective span in ground effect | 850 ft (260 m) |
| Main-deck interior height | 18.3 ft (5.6 m) |
| Overall height | not published |
| Wing area | 44,000 sq ft (4,100 m²) or more |
| Empty weight | 2,160,000 lb (979,760 kg) |
| Maximum take-off weight | 6,000,000 lb (2,721,554 kg) |
| Engines | 8 turboprops (published as 80,000 shp each) |
| Cruise height in ground effect | 20–50 ft (6.1–15.2 m) |
| Payload | 2,800,000 lb (1,270 t) |

## Where the files are

- Wikipedia: [Boeing Pelican](https://en.wikipedia.org/wiki/Boeing_Pelican) — web — Publisher's page; dimensions are facts
- GlobalSecurity.org: [Pelican ULTRA](https://www.globalsecurity.org/military/systems/aircraft/ultra.htm) — web — Publisher's page; dimensions are facts

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

Index: https://xemstudio.com/files/hardware/boeing-pelican-ultra/index.json

- boeing-pelican-ultra-plan-outline: [STEP](https://xemstudio.com/files/hardware/boeing-pelican-ultra/boeing-pelican-ultra-plan-outline.step) · [STL](https://xemstudio.com/files/hardware/boeing-pelican-ultra/boeing-pelican-ultra-plan-outline.stl) — Plan outline 122000 × 152400 mm, 1 mm reference thickness (height not published)

## Questions

**How big was the Boeing Pelican?**

About 122 m long with a 500 ft (152.4 m) unfolded wingspan.

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