| 1. | Apart from their fabric covering the wings were entirely duralumin structures.
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| 2. | The Zeppelins had a rigid internal framework made of duralumin.
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| 3. | The engine was mounted on duralumin bearers between the two centre spars.
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| 4. | The removable wing tips were made up of duralumin skinned spruce formers.
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| 5. | The external cover of the body was made in aluminium and duralumin.
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| 6. | The wings had steel tail assembly was made of Duralumin.
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| 7. | Both wings were made of fabric-covered duralumin.
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| 8. | The fuselage was built from a pair of duralumin monocoques, bolted together.
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| 9. | Wing spars and struts were made of steel tubing, with duralumin ribs.
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| 10. | Like the fuselage, all the tail surfaces were covered with ribbed duralumin.
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