What is the difference between TAS and GS?Why is there a difference between GPS Speed and Indicator speed?How is TAS affected by wind?Where does the difference between calculated and actual groundspeed come from?How to calculate the real Ground Speed from True Air Speed?Why does an airspeed indicator not simply read TAS?What is the relation between IAS and TAS at a constant altitude?Why do pilots normally fly by CAS rather than TAS?What is the effect of altitude on true airspeed?
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What is the difference between TAS and GS?
Why is there a difference between GPS Speed and Indicator speed?How is TAS affected by wind?Where does the difference between calculated and actual groundspeed come from?How to calculate the real Ground Speed from True Air Speed?Why does an airspeed indicator not simply read TAS?What is the relation between IAS and TAS at a constant altitude?Why do pilots normally fly by CAS rather than TAS?What is the effect of altitude on true airspeed?
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$begingroup$
I'm looking for an explanation of true airspeed and ground speed.
airspeed groundspeed
edited 5 hours ago
Pondlife
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asked 8 hours ago
DonDon
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New contributor
Don is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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$endgroup$
add a comment |
$begingroup$
I'm looking for an explanation of true airspeed and ground speed.
airspeed groundspeed
edited 5 hours ago
Pondlife
54k11 gold badges150 silver badges314 bronze badges
asked 8 hours ago
DonDon
62 bronze badges
New contributor
Don is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
1
$begingroup$
The difference between them is the wind speed. TAS + Wind = GS
$endgroup$
– Jan
8 hours ago
$begingroup$
If you know what the abbreviations mean then this question answers itself!
$endgroup$
– Michael Hall
6 hours ago
3
$begingroup$
Possible duplicate of Why is there a difference between GPS Speed and Indicator speed?
$endgroup$
– Pondlife
5 hours ago
add a comment |
$begingroup$
I'm looking for an explanation of true airspeed and ground speed.
airspeed groundspeed
edited 5 hours ago
Pondlife
54k11 gold badges150 silver badges314 bronze badges
asked 8 hours ago
DonDon
62 bronze badges
New contributor
Don is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
I'm looking for an explanation of true airspeed and ground speed.
airspeed groundspeed
airspeed groundspeed
edited 5 hours ago
Pondlife
54k11 gold badges150 silver badges314 bronze badges
asked 8 hours ago
DonDon
62 bronze badges
New contributor
Don is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 5 hours ago
Pondlife
54k11 gold badges150 silver badges314 bronze badges
asked 8 hours ago
DonDon
62 bronze badges
New contributor
Don is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 5 hours ago
Pondlife
54k11 gold badges150 silver badges314 bronze badges
edited 5 hours ago
Pondlife
54k11 gold badges150 silver badges314 bronze badges
edited 5 hours ago
Pondlife
54k11 gold badges150 silver badges314 bronze badges
54k11 gold badges150 silver badges314 bronze badges
asked 8 hours ago
DonDon
62 bronze badges
New contributor
Don is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
DonDon
62 bronze badges
asked 8 hours ago
DonDon
62 bronze badges
62 bronze badges
New contributor
Don is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Don is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
$begingroup$
The difference between them is the wind speed. TAS + Wind = GS
$endgroup$
– Jan
8 hours ago
$begingroup$
If you know what the abbreviations mean then this question answers itself!
$endgroup$
– Michael Hall
6 hours ago
3
$begingroup$
Possible duplicate of Why is there a difference between GPS Speed and Indicator speed?
$endgroup$
– Pondlife
5 hours ago
add a comment |
1
$begingroup$
The difference between them is the wind speed. TAS + Wind = GS
$endgroup$
– Jan
8 hours ago
$begingroup$
If you know what the abbreviations mean then this question answers itself!
$endgroup$
– Michael Hall
6 hours ago
3
$begingroup$
Possible duplicate of Why is there a difference between GPS Speed and Indicator speed?
$endgroup$
– Pondlife
5 hours ago
1
1
$begingroup$
The difference between them is the wind speed. TAS + Wind = GS
$endgroup$
– Jan
8 hours ago
$begingroup$
The difference between them is the wind speed. TAS + Wind = GS
$endgroup$
– Jan
8 hours ago
$begingroup$
If you know what the abbreviations mean then this question answers itself!
$endgroup$
– Michael Hall
6 hours ago
$begingroup$
If you know what the abbreviations mean then this question answers itself!
$endgroup$
– Michael Hall
6 hours ago
3
3
$begingroup$
Possible duplicate of Why is there a difference between GPS Speed and Indicator speed?
$endgroup$
– Pondlife
5 hours ago
$begingroup$
Possible duplicate of Why is there a difference between GPS Speed and Indicator speed?
$endgroup$
– Pondlife
5 hours ago
add a comment |
3 Answers
3
active
oldest
votes
$begingroup$
TAS = True Airspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone in gondola of balloon in same airmass (wind motion) as airplane.
GS =Groundspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone on ground.
As an example: TAS of 200 knots and a headwind of 20 knots gives a GS of 200-20=180 knots. That is: the plane travels at 180 knots over ground but the air is flowing past the plane at 200 knots.
answered 8 hours ago
quiet flyerquiet flyer
4,5467 silver badges44 bronze badges
$endgroup$
$begingroup$
Weird phone screw-up there!
$endgroup$
– quiet flyer
8 hours ago
1
$begingroup$
Feel free to add via editing (or post own); I'm not emotionally attached to ownership of this answer :)
$endgroup$
– quiet flyer
7 hours ago
$begingroup$
Neither am I, but I just added the example to your answer. Hope you don't mind. Else please reject my edit.
$endgroup$
– PerlDuck
7 hours ago
$begingroup$
Edited to fix units and avoid issue with what you "feel" with hand being a better description of IAS than TAS.
$endgroup$
– quiet flyer
39 mins ago
add a comment |
$begingroup$
True air speed is the speed in relation to the mass of air you are moving in, and ground speed is the speed in relation to the ground.
answered 7 hours ago
xxavierxxavier
6,2811 gold badge17 silver badges48 bronze badges
$endgroup$
add a comment |
$begingroup$
Short answer.
TAS is GS without wind.
GS is TAS with wind factored in.
So, on a no wind day, TAS = GS
answered 8 hours ago
Ong Pe HonOng Pe Hon
411 bronze badge
New contributor
Ong Pe Hon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
TAS = True Airspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone in gondola of balloon in same airmass (wind motion) as airplane.
GS =Groundspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone on ground.
As an example: TAS of 200 knots and a headwind of 20 knots gives a GS of 200-20=180 knots. That is: the plane travels at 180 knots over ground but the air is flowing past the plane at 200 knots.
answered 8 hours ago
quiet flyerquiet flyer
4,5467 silver badges44 bronze badges
$endgroup$
$begingroup$
Weird phone screw-up there!
$endgroup$
– quiet flyer
8 hours ago
1
$begingroup$
Feel free to add via editing (or post own); I'm not emotionally attached to ownership of this answer :)
$endgroup$
– quiet flyer
7 hours ago
$begingroup$
Neither am I, but I just added the example to your answer. Hope you don't mind. Else please reject my edit.
$endgroup$
– PerlDuck
7 hours ago
$begingroup$
Edited to fix units and avoid issue with what you "feel" with hand being a better description of IAS than TAS.
$endgroup$
– quiet flyer
39 mins ago
add a comment |
$begingroup$
TAS = True Airspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone in gondola of balloon in same airmass (wind motion) as airplane.
GS =Groundspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone on ground.
As an example: TAS of 200 knots and a headwind of 20 knots gives a GS of 200-20=180 knots. That is: the plane travels at 180 knots over ground but the air is flowing past the plane at 200 knots.
answered 8 hours ago
quiet flyerquiet flyer
4,5467 silver badges44 bronze badges
$endgroup$
$begingroup$
Weird phone screw-up there!
$endgroup$
– quiet flyer
8 hours ago
1
$begingroup$
Feel free to add via editing (or post own); I'm not emotionally attached to ownership of this answer :)
$endgroup$
– quiet flyer
7 hours ago
$begingroup$
Neither am I, but I just added the example to your answer. Hope you don't mind. Else please reject my edit.
$endgroup$
– PerlDuck
7 hours ago
$begingroup$
Edited to fix units and avoid issue with what you "feel" with hand being a better description of IAS than TAS.
$endgroup$
– quiet flyer
39 mins ago
add a comment |
$begingroup$
TAS = True Airspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone in gondola of balloon in same airmass (wind motion) as airplane.
GS =Groundspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone on ground.
As an example: TAS of 200 knots and a headwind of 20 knots gives a GS of 200-20=180 knots. That is: the plane travels at 180 knots over ground but the air is flowing past the plane at 200 knots.
answered 8 hours ago
quiet flyerquiet flyer
4,5467 silver badges44 bronze badges
$endgroup$
TAS = True Airspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone in gondola of balloon in same airmass (wind motion) as airplane.
GS =Groundspeed = speed that you get on radar gun as airplane flies by, when radar gun is held by someone on ground.
As an example: TAS of 200 knots and a headwind of 20 knots gives a GS of 200-20=180 knots. That is: the plane travels at 180 knots over ground but the air is flowing past the plane at 200 knots.
answered 8 hours ago
quiet flyerquiet flyer
4,5467 silver badges44 bronze badges
edited 43 mins ago
answered 8 hours ago
quiet flyerquiet flyer
4,5467 silver badges44 bronze badges
answered 8 hours ago
quiet flyerquiet flyer
4,5467 silver badges44 bronze badges
answered 8 hours ago
quiet flyerquiet flyer
4,5467 silver badges44 bronze badges
4,5467 silver badges44 bronze badges
$begingroup$
Weird phone screw-up there!
$endgroup$
– quiet flyer
8 hours ago
1
$begingroup$
Feel free to add via editing (or post own); I'm not emotionally attached to ownership of this answer :)
$endgroup$
– quiet flyer
7 hours ago
$begingroup$
Neither am I, but I just added the example to your answer. Hope you don't mind. Else please reject my edit.
$endgroup$
– PerlDuck
7 hours ago
$begingroup$
Edited to fix units and avoid issue with what you "feel" with hand being a better description of IAS than TAS.
$endgroup$
– quiet flyer
39 mins ago
add a comment |
$begingroup$
Weird phone screw-up there!
$endgroup$
– quiet flyer
8 hours ago
1
$begingroup$
Feel free to add via editing (or post own); I'm not emotionally attached to ownership of this answer :)
$endgroup$
– quiet flyer
7 hours ago
$begingroup$
Neither am I, but I just added the example to your answer. Hope you don't mind. Else please reject my edit.
$endgroup$
– PerlDuck
7 hours ago
$begingroup$
Edited to fix units and avoid issue with what you "feel" with hand being a better description of IAS than TAS.
$endgroup$
– quiet flyer
39 mins ago
$begingroup$
Weird phone screw-up there!
$endgroup$
– quiet flyer
8 hours ago
$begingroup$
Weird phone screw-up there!
$endgroup$
– quiet flyer
8 hours ago
1
1
$begingroup$
Feel free to add via editing (or post own); I'm not emotionally attached to ownership of this answer :)
$endgroup$
– quiet flyer
7 hours ago
$begingroup$
Feel free to add via editing (or post own); I'm not emotionally attached to ownership of this answer :)
$endgroup$
– quiet flyer
7 hours ago
$begingroup$
Neither am I, but I just added the example to your answer. Hope you don't mind. Else please reject my edit.
$endgroup$
– PerlDuck
7 hours ago
$begingroup$
Neither am I, but I just added the example to your answer. Hope you don't mind. Else please reject my edit.
$endgroup$
– PerlDuck
7 hours ago
$begingroup$
Edited to fix units and avoid issue with what you "feel" with hand being a better description of IAS than TAS.
$endgroup$
– quiet flyer
39 mins ago
$begingroup$
Edited to fix units and avoid issue with what you "feel" with hand being a better description of IAS than TAS.
$endgroup$
– quiet flyer
39 mins ago
add a comment |
$begingroup$
True air speed is the speed in relation to the mass of air you are moving in, and ground speed is the speed in relation to the ground.
answered 7 hours ago
xxavierxxavier
6,2811 gold badge17 silver badges48 bronze badges
$endgroup$
add a comment |
$begingroup$
True air speed is the speed in relation to the mass of air you are moving in, and ground speed is the speed in relation to the ground.
answered 7 hours ago
xxavierxxavier
6,2811 gold badge17 silver badges48 bronze badges
$endgroup$
add a comment |
$begingroup$
True air speed is the speed in relation to the mass of air you are moving in, and ground speed is the speed in relation to the ground.
answered 7 hours ago
xxavierxxavier
6,2811 gold badge17 silver badges48 bronze badges
$endgroup$
True air speed is the speed in relation to the mass of air you are moving in, and ground speed is the speed in relation to the ground.
answered 7 hours ago
xxavierxxavier
6,2811 gold badge17 silver badges48 bronze badges
answered 7 hours ago
xxavierxxavier
6,2811 gold badge17 silver badges48 bronze badges
answered 7 hours ago
xxavierxxavier
6,2811 gold badge17 silver badges48 bronze badges
answered 7 hours ago
xxavierxxavier
6,2811 gold badge17 silver badges48 bronze badges
6,2811 gold badge17 silver badges48 bronze badges
add a comment |
add a comment |
$begingroup$
Short answer.
TAS is GS without wind.
GS is TAS with wind factored in.
So, on a no wind day, TAS = GS
answered 8 hours ago
Ong Pe HonOng Pe Hon
411 bronze badge
New contributor
Ong Pe Hon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
Short answer.
TAS is GS without wind.
GS is TAS with wind factored in.
So, on a no wind day, TAS = GS
answered 8 hours ago
Ong Pe HonOng Pe Hon
411 bronze badge
New contributor
Ong Pe Hon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
Short answer.
TAS is GS without wind.
GS is TAS with wind factored in.
So, on a no wind day, TAS = GS
answered 8 hours ago
Ong Pe HonOng Pe Hon
411 bronze badge
New contributor
Ong Pe Hon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Short answer.
TAS is GS without wind.
GS is TAS with wind factored in.
So, on a no wind day, TAS = GS
answered 8 hours ago
Ong Pe HonOng Pe Hon
411 bronze badge
New contributor
Ong Pe Hon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 8 hours ago
Ong Pe HonOng Pe Hon
411 bronze badge
New contributor
Ong Pe Hon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 8 hours ago
Ong Pe HonOng Pe Hon
411 bronze badge
answered 8 hours ago
Ong Pe HonOng Pe Hon
411 bronze badge
411 bronze badge
New contributor
Ong Pe Hon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Ong Pe Hon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
Don is a new contributor. Be nice, and check out our Code of Conduct.
Don is a new contributor. Be nice, and check out our Code of Conduct.
Don is a new contributor. Be nice, and check out our Code of Conduct.
Don is a new contributor. Be nice, and check out our Code of Conduct.
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1
$begingroup$
The difference between them is the wind speed. TAS + Wind = GS
$endgroup$
– Jan
8 hours ago
$begingroup$
If you know what the abbreviations mean then this question answers itself!
$endgroup$
– Michael Hall
6 hours ago
3
$begingroup$
Possible duplicate of Why is there a difference between GPS Speed and Indicator speed?
$endgroup$
– Pondlife
5 hours ago