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Ruea Mai Sano (Rubber-Band Boat) — Two Dry 10-15 cm Sesbania Twigs Joined into a Triangle, a Rubber Band at the Stern and a 3-5 cm Bamboo Paddle; Wind the Rubber into a Twist and Release It in the Water
เรือไม้โสน (ruea mai sano; also ruea nang yang, rubber-band boat) is a children's toy that sails on water using a rubber band, bicycle inner tube or car inner tube stretched round a paddle and wound into a twist. Put in the water, the paddle turns and pushes the water, driving the boat.
This blueprint makes a real ruea mai sano to the sizes in the source.
Beginner
About 1 hour
Instructions
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1
Real sizes
Real sizes
Loading Jupyter Notebook...
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2
Toy boats, before it
Toy boats, before it
The banana-sheath boat drifts with the current; the ruea mai sano runs on a paddle turned by a rubber band.
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3
Read from the source
Read from the source
"When the boat is put in the water, the paddle turns and pushes the water, making the boat go." (Sirindhorn Anthropology Centre, author not named, CC BY 4.0)
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4
Hull
Hull
Break off two dry sesbania (sano) twigs as thick as a finger and about 10-15 cm long. Bring one end of each together in a triangle and push a sharp bamboo pin right through both at the corner to join them as the bow. At the stern, join the twigs with a shaved bamboo stick too.
Materials for this step:
Bamboo Poles1 piece5
5
Paddle
Paddle
Shave bamboo thin with a knife, about 3-5 cm long, as the paddle.
Tools needed:
Knife6
6
Rubber band and paddle
Rubber band and paddle
Tie a rubber band across the stern, then tie the paddle to the band.
Materials for this step:
Rubber Bands1 piece7
7
Real photos
Real photos
Photos of a real ruea mai sano (Sirindhorn Anthropology Centre, author not named, CC BY 4.0)
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8
How to play
How to play
Turn the paddle until the rubber is wound tight into a twist, put the boat in the water and let the paddle go; the rubber unwinds and spins the paddle, which pushes the water and drives the boat.
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9
Troubleshooting
Troubleshooting
Troubleshooting the ruea mai sano.
Flow
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10
History and limits
History and limits
A rubber band, bicycle inner tube or car inner tube can drive it. Take care with the knife when shaving bamboo.
Source: Sirindhorn Anthropology Centre, Traditional Objects of Everyday Use database, "เรือไม้โสน", author not named (CC BY 4.0 licence).
**Limits** Parts of the source's play instructions are unclear. There is no product line for sesbania twigs.
Materials
2- 1 piecePlaceholder
- 1 piecePlaceholder
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