RFB X-113 Am aerofoil boat (Lippisch, 1970) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/rfb-x-113-am/  (sheet CC BY 4.0)
Basis: Secondary source: Wikipedia (copy of the maker's figures; the maker publishes none directly)
Catalog version: 2026-10-20

Overall (mm): length 8430, width 5890, height 2070
- The X-113 Am was a single-seat composite reverse-delta craft built by Rhein-Flugzeugbau from the Collins X-112 concept.
- The file is an 8.43 × 5.89 × 2.07 m box (Jane's 1974–75 via Wikipedia). Hameed 2019 tabulates 2.0 m height and 360 kg MTOW.
- 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  8.43 m (27 ft 8 in)
Wingspan  5.89 m (19 ft 4 in)
Height  2.07 m (6 ft 9 in)
Empty weight  255 kg
Gross weight  345 kg
Engine  Nelson H63-CP flat-four, 30 kW (40 hp) derated from 36 kW
Propeller  2-blade wooden tractor, 1.17 m (3 ft 10 in) diameter
Cruise speed  80 km/h
Take-off speed  40 km/h
Efficient cruise height  175 mm (7 in)
Ground-effect limit  approx. 3 m (50% of span)
First flight  October 1970

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Wikipedia: RFB X-113 — web — Publisher's page; dimensions are facts — https://en.wikipedia.org/wiki/RFB_X-113

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/rfb-x-113-am/index.json
API: https://xemstudio.com/api/geometry?object=rfb-x-113-am