| 11. | Unlike a pitometer, the speed measurements from a doppler instrument are of ground speed.
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| 12. | While foraging, bumblebees can reach ground speeds of up to.
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| 13. | What is the actual " ground speed " of the moon relative to the earth?
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| 14. | The time aircraft will be inside the cone depends to it's height and ground speed.
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| 15. | But as Pius says below, the satnav is showing the ground speed, not the airspeed.
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| 16. | The decision to continue climbing was based on ground speed readouts from his GPS unit.
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| 17. | Green Satin provided accurate and immediate measurements of the true ground speed and the drift angle.
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| 18. | If there is no wind it is also the same as ground speed ( GS ).
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| 19. | The species has been measured at a ground speed of, measured by an aircraft tracking device.
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| 20. | With the benefit of hindsight, one might say Well, rely in the GPS ground speed!
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