| 1. | A white tail plane is one that has been built but has no customer.
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| 2. | Shortly before the fatal flight, the tail plane was modified in an attempt to improve control.
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| 3. | The control surfaces were horn balanced and the tail plane incidence could be trimmed in flight.
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| 4. | The tail plane is the missing element on the model to commemorate the cause of the accident.
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| 5. | A " Super Canberra ", including other XB-51 features, such as swept wings and tail planes, was proposed.
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| 6. | The tail plane featured two large oval vertical stabilizers mounted at the ends of a rectangular horizontal stabilizer.
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| 7. | The aircraft had a shoulder-wing and twin booms supporting vertical stabilisers with a tail plane joining the two booms.
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| 8. | The works were also involved in constructing Bailey bridges and the tail planes for Airspeed Horsa gliders for the invasion.
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| 9. | Addition work included moving elements of the wings being produced in the Netherlands, and Spain producing the horizontal tail plane.
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| 10. | Most airliners and transport aircraft feature a large, slow-moving " trimmable tail plane " which is combined with independently-moving elevators.
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