Descent speeds
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Ryanair
Somebody mentioned Ryanair, there's one thing that I have been wondering a long time by myself. Why do they always wan't to start their descent so early? One could think that it would be a lot more economical to start descent pretty late and make an idle-power descent to join the gp directly, but instead they start descent really early with a pretty big ROD and then they find themshelves flying at 2-3000 ft almost 10 minutes and as far as I know that is not an economical or fast way to fly a B737...
Sorry about the OT.
Sorry about the OT.
Join Date: Nov 2001
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If you're operating into class D,E,F,G airspace,then there is a speed limit of 250kts below 10000ft.With modern radar systems we can put the ground speeds on the targets and see roughly whats what.BA will normally ask to keep high speed.Ryanair just do it.
The ones that are tanking around over 250kts are tricky to vector on the ILS.Even though you turn them earlier,they still go through the localiser,as they are too fast.
Helicopters are a whole different thing.Get behind them,which is all the time at ISZ and it's 160 til 4 early.Just the joys of working here.Ain't the pay thats for sure..
The ones that are tanking around over 250kts are tricky to vector on the ILS.Even though you turn them earlier,they still go through the localiser,as they are too fast.
Helicopters are a whole different thing.Get behind them,which is all the time at ISZ and it's 160 til 4 early.Just the joys of working here.Ain't the pay thats for sure..
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In Oz we had an 'agreement' that those that could (domestic anyhow) would descend at cruise into 300K. Our major airline decided one day to bump up the cost index and not tell us, just all of a sudden they were doing anywhere between 260 and 300K. Nobody died, but the sequences looked crap until somebody asked a pilot what was happening, "What? Nobody told you!" was the response
After it all settled down the result has been that everybody is treated the same: if you want somebody to go fast you explain it patiently and comprehensively, or, if they are 'profile' you assume 280 and: slow them down if they exceed expectations inconveniently, or, leave holes in the sequence and shaft everybody if the reverse is true.
After it all settled down the result has been that everybody is treated the same: if you want somebody to go fast you explain it patiently and comprehensively, or, if they are 'profile' you assume 280 and: slow them down if they exceed expectations inconveniently, or, leave holes in the sequence and shaft everybody if the reverse is true.
A river to my people
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I have posted these before and they are still relevant.
Rules for successful flow control
1. Don’t trust pilots.
2. Don’t trust sector controllers.
3. Don’t trust tower controllers.
4. Don’t trust anyone else.
5. Develop a thick skin.
6. Never back a Twin Otter to beat anything, even another Twin Otter.
7. Never worry about departures, they are the tower's problem.
8. Pray that the management pilots have good FOs.
9. Computer Derived Threshold Times will be accurate only if the captain throws the computer out the storm window as he overflies the threshold in the go-round after being too intimate with the aircraft in front.
10. All pilots think that they should be Number 1.
11. Cardboard Bandeirantes can be used to hide unexplained gaps in the sequence.
12. Unless they build more runways the maximum number of aircraft that can land at an airport in a given time will remain the same, despite the wetdreams of airline schedulers.
13. Have faith in your own ability, no-one else does.
14. Same money, right or wrong.
15. If you believe the tower controller who says that the runway works will be finished prior to the start of the next sequence, you deserve all you get.
16. Your are only as good as your last sequence.
17. If your last sequence was not good, see above.
18. Keep slipping the odd joke to the approach controllers, it keeps their mind off what is coming up.
19. One day you will get a trainee who merely triples your workload.
20. Never sit in on approach and work your own sequence.
21. Always keep a false nose or wig in the car, an angry mob waiting outside the carpark is not a pretty sight.
22. The flow controller is never wrong. The flow controller may merely be acting on information that may now be superseded.
sep
Rules for successful flow control
1. Don’t trust pilots.
2. Don’t trust sector controllers.
3. Don’t trust tower controllers.
4. Don’t trust anyone else.
5. Develop a thick skin.
6. Never back a Twin Otter to beat anything, even another Twin Otter.
7. Never worry about departures, they are the tower's problem.
8. Pray that the management pilots have good FOs.
9. Computer Derived Threshold Times will be accurate only if the captain throws the computer out the storm window as he overflies the threshold in the go-round after being too intimate with the aircraft in front.
10. All pilots think that they should be Number 1.
11. Cardboard Bandeirantes can be used to hide unexplained gaps in the sequence.
12. Unless they build more runways the maximum number of aircraft that can land at an airport in a given time will remain the same, despite the wetdreams of airline schedulers.
13. Have faith in your own ability, no-one else does.
14. Same money, right or wrong.
15. If you believe the tower controller who says that the runway works will be finished prior to the start of the next sequence, you deserve all you get.
16. Your are only as good as your last sequence.
17. If your last sequence was not good, see above.
18. Keep slipping the odd joke to the approach controllers, it keeps their mind off what is coming up.
19. One day you will get a trainee who merely triples your workload.
20. Never sit in on approach and work your own sequence.
21. Always keep a false nose or wig in the car, an angry mob waiting outside the carpark is not a pretty sight.
22. The flow controller is never wrong. The flow controller may merely be acting on information that may now be superseded.
sep
Per Ardua ad Astraeus
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[QUOTEif they are 'profile' you assume 280 ][/QUOTE]- jFj - now we are getting somewhere? 280 is the figure the check Captain mentioned. Where does this 'profile' originate?
