Speed with which an aircraft traverses the ground over which it flies.
The speed of an aeroplane relative to the earth's surface, as distinct from its speed through the air. Thus if an aeroplane is flying at 200 m.p.h. through the air and is flying against a steady wind of 20 m.p.h. its ground speed will be 180 m.p.h.
The speed of an aircraft relative to the surface of the Earth, taking the influence of headwinds and tailwinds into account.
An aircraft's actual speed over the ground, which is not available as an instrument readout but must be calculated.
the velocity of the bike relative to the ground. It is the speed you read on your cycling computer.
Speed over the ground that an aircraft achieves. Only in still air conditions is it the same as true airspeed (TAS).
Your actual speed; your speed relative to the ground being traversed in a given amount of time.
The speed at which you move over the ground. This is a combination of your speed through the air (SA) and the speed of the air itself (AS). Ground Speed GS = AS + SA. You would be surprised at how fast the air can be moving way up there...
The speed of the airplane in relation to it's movement over the ground. Distance traveled divided by time.
speed at which the glider passes over the ground.
The speed of an airplane or skydiver over the ground, as opposed to through the air. The Letter H Hand deploy. To activate the parachute by manually deploying the pilot chute as opposed to pulling a ripcord.
The speed of an airborne object relative to the earth's surface. It is the magnitude of the vector sum of the object's velocity with respect to the air and the wind velocity, or, expressed in a different manner, the algebraic sum of the aircraft's airspeed and the wind factor.
Ground speed is the speed of an aircraft relative to the ground. It is the sum of the aircraft's true airspeed and the current wind and weather conditions; a headwind subtracts from the ground speed, while a tailwind adds to it. Winds at other angles to the heading will have components of either headwind or tailwind as well as a crosswind component.
