| 21. | She was virtually identical to her sister ship " Belgic ".
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| 22. | She differed from her sister ships mainly in her main armament.
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| 23. | The sister ships were both sold for scrap in 1920 21.
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| 24. | They eventually boarded tenders and moved to the Celebration's sister ship, the Ecstasy.
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| 25. | Only 4 first sister ships were equipped by cargo derricks only.
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| 26. | She has two sister ships, and which also sail for Hurtigruten.
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| 27. | More would have died if a sister ship hadn't been 15 minutes away.
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| 28. | The contract also includes an option to build a sister ship.
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| 29. | She also had 2 sister ships SS Pittsburgh and SS Doric.
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| 30. | Her sister ship was scrapped in New Orleans in 1993.
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