| 31. | Grumman fighter development began with the two-seat Grumman FF biplane.
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| 32. | George meets a farmer and they overtake the train in her biplane.
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| 33. | Another design that appeared in 1907 was the Voisin biplane.
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| 34. | Later Farman modified and improved the Voisin pusher biplane considerably.
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| 35. | They evaded French cavalry, to direct retrieval of their DFW biplane.
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| 36. | During trials the F . V reportedly flew mostly as a biplane.
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| 37. | Biplane Rides, flight school, and skydive operations on the field.
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| 38. | They initially proposed to build designs from pusher-propeller biplane design.
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| 39. | They were Soviet-made Antonov An-2 biplanes.
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| 40. | Most of the major powers'front line fighter units employed biplanes.
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