Library › Aircraft design › Wing planforms ·

Reverse delta (Lippisch) wing

Name: Reverse delta (Lippisch) wing dimension sheet
Creator: Xem Studio
License: https://creativecommons.org/licenses/by/4.0/

What is a reverse delta wing? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio

Also called: reverse delta wing, lippisch wing, inverse delta wing, reverse delta planform, lippisch planform, x-113 wing, reverse delta rc, reverse delta ekranoplan, forward swept delta

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

sizes: 4 in table

Notes

A reverse delta's chord decreases linearly from root to tip with the point leading, the planform Lippisch used for ground-effect craft because it limits centre-of-pressure shift with height (Rozhdestvensky).
Compared with a regular delta it has lower CL and CD, a delayed stall and higher L/D, with CLmax 1.175 at 38 deg vs 1.26 at 34 deg for the delta (Frontiers 2022 review).
Lippisch craft combined it with moderate AR above 3, anhedral and a large high-mounted tailplane (Rozhdestvensky).
Used on: Lippisch X-113, Lippisch X-114.
The file is a reference example built by Xem Studio from the numbers above. Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

Reverse delta (Lippisch) wing size chart

parameter	value or range	source
Reverse delta CLmax / stall	1.175 at 38 deg	Frontiers 2022 review
Regular delta CLmax / stall	1.26 at 34 deg	Frontiers 2022 review
Lippisch AR	moderate, above 3	Rozhdestvensky 2006
Reference build	span 700, root 400 (AR 3.5)	computed

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

Progress in Aerospace Sciences (K.V. Rozhdestvensky, 2006)	Wing-in-ground effect vehicles (review)	web	Publisher's page; dimensions are facts
Frontiers in Aerospace Engineering (2022)	Review of ground-effect experiments on rectangular, reverse-delta and delta wings	web	Publisher's page; dimensions are facts

Free files

★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json

reverse-delta-wing-wing

reverse delta planform: span 700, root 400, tip 0 mm, LE sweep -30°, dihedral 0°, NACA 0012

STEP · STL

Let your AI pull this. Add https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.

Set it up →

Plain text: sheet.txt · JSON: /api/geometry?object=reverse-delta-wing