| 31. | The main product was cotton duck, used for sailcloth and a wide variety of other uses.
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| 32. | A camp was established on the island, using sailcloth for tents to shelter men and supplies.
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| 33. | The airframe is assembled from aluminum tubing, with steel reinforcement and is covered in Dacron sailcloth.
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| 34. | The Sabre is constructed from bolted aluminium tubing, covered in pre-sewn Dacron sailcloth envelopes.
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| 35. | The aircraft is made from aluminum tubing, with the single surface wing covered in Dacron sailcloth.
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| 36. | The aircraft is made from metal tubing, with its double surface wing covered in Dacron sailcloth.
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| 37. | The aircraft is made from welded tubing, with its double surface wing covered in Dacron sailcloth.
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| 38. | The aircraft is made from aluminum tubing, with its flying surfaces covered in Dacron sailcloth envelopes.
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| 39. | In medieval mills, the sailcloth was wound in and out of a ladder type arrangement of sails.
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| 40. | Sweden had still not developed a sizeable sailcloth industry, and material had to be ordered from abroad.
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