| 31. | The range can be seen as the average ground speed multiplied by the maximum time in the air.
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| 32. | They need ground speed for navigation, but for safety and optimum fuel consumption air speed is what counts.
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| 33. | The true ground speed is determined by matching the center hole to the speed portion of the grid.
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| 34. | XI to measure its ground speed.
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| 35. | The goal is to have the actual ground speed be as far over the handicapped speed as possible.
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| 36. | This new instrumentation allowed operators to get better grain yields by optimizing ground speed and other operating parameters.
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| 37. | This system calculated ground speed based on driveshaft rotations and used a solenoid to vary throttle position as needed.
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| 38. | The aircraft flew at altitudes between and completed the trip around the world at an average ground speed of.
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| 39. | See air speed and ground speed, which can vary dramatically, say if the plane is in a jet stream.
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| 40. | This allows the ground speed of the machine to be varied while maintaining a constant engine and threshing speed.
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