A-90 Orlyonok ekranoplan (Project 904) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/a-90-orlyonok-ekranoplan/  (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 58100, width 31500, height 16300
- The Orlyonok is the Alexeyev bureau's turboprop-cruise assault-transport ekranoplan, first flown in 1972; one survives at the Moscow Navy museum.
- The file is a 58.1 × 31.5 × 16.3 m box from Wikipedia (sourced to Komissarov). A Russian-language source quotes a 600 m² wing area instead of 304 m², so wing area is uncertain.
- Marked secondary: figures are from encyclopedic sources, not a factory document.
- 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  58.1 m
Wingspan  31.5 m
Height  16.3 m
Wing area  304 m²
Maximum take-off weight  140,000 kg
Capacity  150 troops or 28,000 kg cargo
Cruise engine  1 × Kuznetsov NK-12MK turboprop, 11,033 kW (14,795 shp), at the fin/tailplane junction, 8-blade contra-rotating propeller
Boost engines  2 × Kuznetsov NK-8-4K turbofans, 103 kN each, in the nose
Maximum speed  400 km/h
Range  1,500 km
Service ceiling  3,000 m
Ground-effect flying height  5–10 m above the surface (GlobalSecurity)
Crew  6
Number built  4 (one static-test airframe)

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: A-90 Orlyonok — web — Publisher's page; dimensions are facts — https://en.wikipedia.org/wiki/A-90_Orlyonok
- GlobalSecurity.org: Project 904 Orlan class / A-90 Orlyonok — web — Publisher's page; dimensions are facts — https://www.globalsecurity.org/military/world/russia/904.htm

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/a-90-orlyonok-ekranoplan/index.json
API: https://xemstudio.com/api/geometry?object=a-90-orlyonok-ekranoplan