Qantas has problem in Bangkok

[The_Fat_Controller 25]

Jacko, now you have really made me laugh !

 

The AIRSPEED of an aircraft has absolutely NOTHING to do with the wind, it will fly at the same INDICATED airspeed irrespective of ANY wind component.

 

The GROUND speed however varies considerably with headwind or tailwind components

 

By the way, I am also a pilot, so I am not talking out of my bottom.

 

I checked a couple of flight plans at work, A388 and B744 both file within a few knots of 500 TAS (True Air Speed)

 

Take a minute to think about it before your next post.

[jacko 8,815]

Jacko, now you have really made me laugh !

 

The AIRSPEED of an aircraft has absolutely NOTHING to do with the wind, it will fly at the same INDICATED airspeed irrespective of ANY wind component.

 

The GROUND speed however varies considerably with headwind or tailwind components

 

By the way, I am also a pilot, so I am not talking out of my bottom.

 

I checked a couple of flight plans at work, A388 and B744 both file within a few knots of 500 TAS (True Air Speed)

 

Take a minute to think about it before your next post.

Where have I mentioned airspeed?

I am quite capable of grasping that an aircraft flies in the air, despite not having a pilot's licence.

The groundspeed of an aircraft nevertheless has quite a lot to do with with both the aircraft's airspeed, and the speed of that air relative to the ground.

But most passengers are only worried about how long it will take to get there aren't they?

More strictly, we should be referring to velocity but let us not confuse everyone eh.... speed is a scalar quantity and bears little meaning on how long it takes to get from A to B!

 

Last time I checked, there were no special education qualifications to obtain a pilot's licence, and the arrogance and air of superiority comes free apparently.

 

PS The airspeed of an aircraft on the ground would have everything to do with the wind!

 

Edit...spelling.

Edited April 10, 2010 by jacko

[The_Fat_Controller 25]

Jacko, you seemed to have missed the point, my replies were to try and settle the differences in claimed speeds between you and Samsonite.

 

You started off by mentioning airspeed when talking about the maximum speeds quoted on Wikipedia !

 

The A388 and B744 file exactly the SAME speeds on their daily plans, that's how the airlines fly them despite different maximum available speeds.

 

In real life, neither is actually flown consistently faster than the other, airspeeds are the same.

 

In the cruise, airspeed is CONSTANT, GROUNDSPEED varies due to relative WINDSPEED and it's the speed over the ground that determines the time it takes to your destination, so as both the A388 and B744 normally fly the same airspeed, if both fly at the same level they will arrive at the same time.

 

Here are today's North Atlantic tracks and the jetstream is on there too, big yellow line.

 

http://www.jetplan.com/tda/west.html

Edited April 10, 2010 by The_Fat_Controller

[jacko 8,815]

Jacko, you seemed to have missed the point, my replies were to try and settle the differences in claimed speeds between you and Samsonite.

 

You started off by mentioning airspeed when talking about the maximum speeds quoted on Wikipedia !

 

The A388 and B744 file exactly the SAME speeds on their daily plans, that's how the airlines fly them despite different maximum available speeds.

 

In real life, neither is actually flown consistently faster than the other.

 

Here are today's North Atlantic tracks and the jetstream is on there too.

 

http://www.jetplan.com/tda/west.html

 

Airspeed = The speed of an aircraft relative to the air in which it is flying .

 

Definition from a Google search, therefore an aircraft on the ground has zero airspeed.

 

Edit for Airspeed definition.

According to Wikipedia, the A380 has a higher maximum speed. If the figures Wiki quote are incorrect, well then that is up to Wiki.

It is an airspeed quote, that will translate to a faster groundspeed for the same conditions.

 

I didn't need to get into an argument over windspeeds, airspeeds, groundspeeds and flight plans nor who is or who is not a pilot.

 

Funny, the definition of airspeed I found....Airspeed is the speed of an aircraft relative to the air, made no mention as to whether it was on the ground or not! Your definition seems to match Wordweb....

But since an aircraft on the ground in a strong wind would have differing ram and static pressures in the pitot probes, I would hesitate to say airspeed was zero, I would say it equals windspeed... but enough semantics.

 

I wish to draw a line here. I will be flying back to the UK soon, hopefully on an A380 as it is faster.

You need to get out and enjoy the spring-like weather in the UK, so I hear.

 

Edit...spelling again, not as clever as a pilot!

Edited April 10, 2010 by jacko

[The_Fat_Controller 25]

Jacko, you posted as I edited to remove the airspeed definition.

 

Hope you have a safe trip home.

 

I have to go and keep the skies over the northern UK under control today, but it is a lovely sunny and mild day.