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AG35 airfoil (Drela AG series)
What are the AG35-AG38 airfoils? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio
Also called: ag35, ag35 airfoil, drela ag35, ag series airfoil, ag35 ag36 ag37 ag38, bubble dancer airfoil, rudder elevator spoiler glider airfoil, drela airfoil, ag35 coordinates, res glider airfoil
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 5 in table
Notes
- AG35-AG38 are Mark Drela's thin airfoils used across the wing of the Bubble Dancer 3 m RES sailplane, with ht21 for the tail surfaces (CRRC).
- The design combined the Allegro layout with 'some new thin airfoils' for easy building as a thermal glider that can still handle wind and winch launches; the model weighs about 31 oz with a sink rate of about 0.8 ft/s (CRRC).
- Used on: Bubble Dancer (RC sailplane), Allegro-Lite (prototype wing).
AG35 airfoil size chart
| parameter | value or range | source |
|---|---|---|
| Bubble Dancer wing airfoils | ag35, ag36, ag37, ag38 | CRRC |
| Tail airfoil | ht21 | CRRC |
| Span / area | 120 in / 1000 in^2 | CRRC |
| Weight / sink | ~31 oz (880 g) / ~0.8 ft/s | CRRC |
| Coordinates source | Drela airfoil files on CRRC Bubble Dancer page | CRRC |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Charles River Radio Controllers (M. Drela designs) | Bubble Dancer 3m RES sailplane | web | Publisher's page; dimensions are facts |
Xem scan
File coming
No downloadable true-size file yet: the published figures do not fix the whole shape, and Xem never guesses a number. A measured scan is planned; request it and it moves up.
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.Plain text: sheet.txt · JSON: /api/geometry?object=ag35-airfoil
Questions
Where do AG35-AG38 go on the wing?
They are listed together for the Bubble Dancer wing; the page does not give spanwise stations (CRRC).