| 1. | Ground training included aerodynamics, astronavigation, meteorology, propulsion and many other disciplines.
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| 2. | They were labeled " GTD-21Bs " ( GT stood for ground training ).
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| 3. | The Air Force called them GTD-21Bs with the GT standing for Ground Training.
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| 4. | Ground training utilises the Defence Training Estate, commercial ranges and privately owned land.
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| 5. | Long Branch became the Cadet Ground Training School for the Royal Flying Corps.
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| 6. | The grounded airframes were either scrapped or used for ground training.
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| 7. | It did not conduct any flight training after 6 February, but continued ground training.
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| 8. | Three groups of United pilots and instructors began their 777 ground training in November.
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| 9. | These winds created much havoc with the aerial observation, ground training, and balloon handling.
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| 10. | Until the start of 2008, the base belonged to the Air Force's Ground Training Wing.
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