| 11. | The aircraft is made from tubing, with its wing covered in Dacron sailcloth.
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| 12. | The aircraft is made from tubing, with the wing covered in polyester sailcloth.
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| 13. | The aircraft is made from tubing, with the wing covered in Dacron sailcloth.
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| 14. | The wing is covered in Dacron sailcloth, with many models using Mylar reinforcing.
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| 15. | Post-medieval mill sails have a lattice framework over which the sailcloth is spread.
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| 16. | The airframe is made from bolted-together aluminium tubing and covered in Dacron sailcloth.
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| 17. | The aircraft is made from bolted-together aluminum tubing, covered in Dacron sailcloth.
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| 18. | The wing is covered in Dacron sailcloth.
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| 19. | The aircraft is made from aluminum tubing, with the wing covered in polyester sailcloth.
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| 20. | The aircraft structure is made from tubing, with the wing covered in Dacron sailcloth.
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