| 21. | However, investigators stated that even if a mid-air engine failure occurred, the pilots still could have returned to the airport safely.
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| 22. | Air engines have been used since the 19th century to power mine locomotives, pumps, drills and trams, via centralized, city-level, distribution.
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| 23. | He invented a hot air engine known as the " Surge Turbine " for which he was granted a US patent.
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| 24. | It is technically challenging to design air engines to maintain high efficiency and sufficient power over a wide range of pressures.
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| 25. | Tata has moved onto phase 2, " completing detailed development of the compressed air engine into specific vehicle and stationary applications ".
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| 26. | Examples include steam in a steam engine, air in a hot air engine and hydraulic fluid in a hydraulic motor or hydraulic cylinder.
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| 27. | This innovation improved the efficiency of Stirling's engine and should be present in any air engine that is properly called a Stirling engine.
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| 28. | Each door was controlled by an air engine, consisting of a large and a small cylinder, which were supplied with compressed air at.
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| 29. | It was revealed that if an aircraft had a mid air engine failure in one of its engine, the plane still could fly.
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| 30. | Electric door motors were used for the first time, replacing the standard compressed air engines which had served on much of the older equipment.
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