A Su-27 you can cut from a single sheet of 5 mm foam board and put together in about 15 minutes.
Two versions: ducted fan (EDF) or propeller.
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demo_new.mp4
| Material | 5 mm cold-laminated foam board (KT board) |
| Sheet | 1100 × 900 mm (EDF version) or 1200 × 900 mm (propeller version) |
| Board cost | about ¥3 |
| Build time | about 15 minutes |
| Centre of gravity | marked by a hole in the plans |
| EDF version | Propeller version | |
|---|---|---|
| Plan | plans/su27-edf-v4-1100x900.dxf |
plans/su27-prop-v7-1200x900.dxf |
| Extra part | 3D-printed fan mount: 3d/edf-mount.stl |
foam-board plastic motor mount |
| Battery | 4S1P 2700 mAh | 3S1P 1300 mAh |
| Motor / fan | ducted fan | 2212, 1400 KV, 7–8 inch prop |
EDF version (v4) |
Propeller version (v7) |
Important
Red lines: cut half way through (hinges for the control surfaces). Black lines: cut all the way through.
The drawings are plain DXF in millimetres and open in any laser-cutter software, LightBurn, LibreCAD or AutoCAD. Without a laser cutter, print them at 1:1 and cut by hand. GitHub can show the STL in 3D: open it.
Tools: a laser cutter (optional), hot glue gun, hobby knife, steel ruler, pliers.
Materials: 5 mm cold-laminated foam board, a plastic motor mount for foam planes, control horns, metal clevises, wire pushrods, fibre tape, velcro straps, carbon rod (optional).
Electronics: motor or ducted fan, propeller, ESC, battery, 2 servos, transmitter and receiver.
- Modified-FTVersaWing: a foam-board flying wing with a wooden FPV bay, based on the Flite Test Versa Wing.
CC BY-NC-SA 4.0: build it, modify it and share it, with credit, not for commercial use, and under the same license.