ground speed

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ground speed

[′grau̇nd ‚spēd]
(navigation)
Speed of an aircraft relative to the surface of the earth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
As groundspeed increases, the pylon will move aft in relation to that line of rivets you're looking at for your sight picture.
The Michigan-based company (offices are in Ann Arbor and Atlanta) is centered around its automation and analytics platform dubbed the Groundspeed Adaptive Data Pipeline.
Prior to his appointment with Groundspeed McMinis was a director of data science and data engineering at Narvar.
Your groundspeed will be about 70 knots; a little interpolation suggests you need at least about 275 fpm climb to maintain 200 feet per nm to 1400 feet.
Slow your airspeed (and subsequent groundspeed) as much as practical to help ensure you stay within 10 NM of the VOR.
While I did not ever need the AHRS-provided backup attitude, altitude and groundspeed information to help out after a vacuum pump failure, it was nice to know it was just a button-push away.
I saw 100 knots groundspeed (KGS) passing the 5 board, 80 at the 4 board, and 55 at the 3 board (all below our SOP mandatory "go around" wickets of 100 KCAS at the 4 board, or 80 KCAS at the 3 board).
At 1450, about the time the airplane would arrive in a no-wind situation, the pilot sent his wife a text message stating his ground-speed was "79 knots." Around 15 minutes later, the airplane's groundspeed had slowed to about 60 knots, according to ATC radar.
A descent rate over 1000 fpm for an aircraft only doing 94.6 knots groundspeed (see airspeed or the GPS) is a problem.
At $899, the Stratus 2S has all the bells and whistles on the IS and adds an Attitude Heading Reference System (AHRS) giving backup attitude, altitude and groundspeed on the iPad, dual-band ADS-B traffic, an automatic flight data recorder, WiFi security to allow the pilot to hide the network name and/or add a password and a pressure altitude sensor that also powers ForeFlight's cabin altitude advisor.
As I begin my last inbound leg, I am indicating 240 knots groundspeed, which equates to four miles a minute.