| 21. | It was not a success, failing to obtain its certificate of airworthiness because of insoluble spinning characteristics.
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| 22. | A certificate of airworthiness is issued when the aircraft is registered in the name of the owner.
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| 23. | Once the changes are completed on each individual aircraft the regulatory authorities can return its certificate of airworthiness.
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| 24. | In Canada the Europa is an amateur-built aircraft and qualifies for a " Special Certificate of Airworthiness ".
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| 25. | Its certificate of airworthiness was last renewed on 4 November 1987 and was valid until 30 November 1988.
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| 26. | The aircraft's Certificate of Airworthiness had last been renewed in November 1928 and was valid for a year.
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| 27. | The Pouss Pou first flew in August 1980 and obtained its Certificate of Airworthiness on 21 July 1981.
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| 28. | Once the changes are completed on each individual aircraft the regulatory authorities can return its Certificate of Airworthiness.
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| 29. | The first certificate of airworthiness for an electric powered aircraft was granted to the Lange Antares 20E in 2003.
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| 30. | It flew again in 1947 and was delivered to British Air Transport at Redhill, gaining a Certificate of Airworthiness.
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