Boeing Pelican ULTRA ground-effect transport (concept) — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/boeing-pelican-ultra/ (sheet CC BY 4.0) Basis: Secondary source: Wikipedia, GlobalSecurity.org (copy of the maker's figures; the maker publishes none directly) Catalog version: 2026-10-20 Overall (mm): length 122000, width 152400.0 - 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. 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) Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Wikipedia: Boeing Pelican — web — Publisher's page; dimensions are facts — https://en.wikipedia.org/wiki/Boeing_Pelican - GlobalSecurity.org: Pelican ULTRA — web — Publisher's page; dimensions are facts — https://www.globalsecurity.org/military/systems/aircraft/ultra.htm Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/boeing-pelican-ultra/index.json API: https://xemstudio.com/api/geometry?object=boeing-pelican-ultra