ground speed

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ground speed

[′grau̇nd ‚spēd]
(navigation)
Speed of an aircraft relative to the surface of the earth.

ground speed

ground speed
The horizontal component of the velocity of an aircraft relative to the ground. Ground speed is obtained by applying the effect of the prevalent wind velocity to the TAS (true air speed).
References in periodicals archive ?
Similarly, with a pto-driven implement when engine speed must be kept constant, the control system can be instructed to achieve that with any change in load due to a slope or when moving into heavier soil compensated by altering ground speed through the transmission ratio.
There was a hydraulic drive in each rear wheel and ground speeds were infinitely variable from 0 to 9 mph.
Sales literature stated a ground speed of 0.75 mph could be obtained in "special low" by throttling back the engine speed, which would result in a low idle speed of about 845rpm.
For this application, Magic Circle wanted to achieve a ground speed of about 8 mph using a 20 to 27 hp motor at 3600 rpm, 23- to 24-in.
This is especially valuable when running 8- or 12-row cornheads at higher ground speeds.
The attraction of infinitely variable transmissions in agricultural uses has always been providing the operator with literally an unlimited variety of ground speed options.
With the 5-speed transmission, speeds were 1.9 mph, 3.2 mph, 5.7 mph and 15.3 mph, providing adequate ground speeds for tillage, general farming and a road gear.
Higher productivity of up to 25 percent comes from higher ground speeds while using less horsepower, handling thick, tough crop materials with ease.
These limitations include wind effects and the challenge of rapidly changing application rates at aircraft ground speeds that customarily approach 65 m/s.
The John Deere 615P Belt Pick Up Platform allows small grain producers to harvest bigger windrows at faster ground speeds with fewer losses.
The electronically controlled hydrostatic transmission features cruise control that can maintain constant ground speeds as low as 0.16 kph (0.1 mph).
The lock-up function activates in second, third and fourth gears and gives the machine a maximum ground speed of 23.2 mph (37.3 km/h).