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ground speed

also ground·speed (ground′spēd′)
The speed of an aircraft relative to the ground.


(Automotive Engineering) the speed of an aircraft relative to the ground. Compare airspeed


or ground′ speed`,

the speed of an aircraft with reference to the ground. Compare airspeed.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.groundspeed - the speed of an aircraft relative to the ground
speed, velocity - distance travelled per unit time


[ˈgraʊndˌspiːd] N (Aer) → velocidad f respecto a la tierra
References in periodicals archive ?
If you've never used a whiz wheel, it has two main parts: a circular slide rule side for making quick airspeed and density altitude calculations (to name two), plus a wind side for computing groundspeed and wind correction angle.
8 degrees true at a GPS altitude of 1096 feet (400 feet agl) and a groundspeed of 52 knots.
When paired with select VHF NAV/COMMs or GPS navigators, the G5 can be considered primary for displaying magnetic heading, VOR/LOC guidance and/or GPS course guidance, as well as distance and groundspeed.
5-inch sunlight readable liquid crystal display (LCD) with built-in GPS, G5 displays attitude, ground track, altitude, airspeed, groundspeed, vertical speed, slip/skid, course (lateral) deviation, vertical deviation and incorporates a dedicated HSI page.
The researchers found that the flies accelerated when the wind was pushing them from behind and decelerated when flying into a headwind and eventually recovered to maintain their original groundspeed.
We set up the helicopter for a long, shallow straight-in approach and touched down on the runway at just under 30 knots groundspeed.
The slow groundspeed makes attacking very difficult so that's what we mean by a real leveller between two teams.
There is also speculation that a sudden gust of wind could have increased the groundspeed of the plane on touch down or increased its airspeed while coming in to land.
Clair, Ford set the world record for groundspeed in his invention, in a race that would win him national celebrity.
The instructor navigator on board verified the airspeed indicators were indeed erroneous when compared to Global Positioning System (GPS) groundspeed and true airspeed converted to indicate airspeed.
Turn anticipation uses your current groundspeed to initiate a (roughly) standard-rate turn that lets you roll out perfectly on course for the next leg.