Separation between departing aircrafts on the same track
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Separation between departing aircrafts on the same track
Hi everybody,
I would like to know which minimum separation generally is used between two aircrafts departing the same runway on the same track (in Germany).
In ICAO Doc 4444 I only could find the following statements
"5.6.2 Two minutes are required between take-offs when the preceding aircraft is 74 km/h (40 kt) or more faster than the following aircraft and both aircraft will follow the same track"
(what if the preceding aircraft isn't 40kt or more faster?)
"5.6.1 One-minute separation is required if aircraft are to fly on tracks diverging by at least 45 degrees immediately after take-off so that lateral separation is provided (see Figure 5-35)."
I would be really thankful for any answer!
Greets and have a great weekend
Marcel
I would like to know which minimum separation generally is used between two aircrafts departing the same runway on the same track (in Germany).
In ICAO Doc 4444 I only could find the following statements
"5.6.2 Two minutes are required between take-offs when the preceding aircraft is 74 km/h (40 kt) or more faster than the following aircraft and both aircraft will follow the same track"
(what if the preceding aircraft isn't 40kt or more faster?)
"5.6.1 One-minute separation is required if aircraft are to fly on tracks diverging by at least 45 degrees immediately after take-off so that lateral separation is provided (see Figure 5-35)."
I would be really thankful for any answer!
Greets and have a great weekend
Marcel
Join Date: Oct 2000
Location: Berkshire, UK
Age: 79
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You may get a lot of answers as the separations may be laid down in local instructions. Where I worked there was no speed requirement laid down for 2 minute separation unless the leading aircraft was much slower.
This is a basic Procedural separation standard. Where radar is used this departure separation can be a lot less, so that the radar separation minimum of 3 nam between a/c is achieved.
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Moons ago at Heathrow a "fast" following a "slow" could mean five minutes. The answer was to ring London Radar to get the delay reduced. I did so one day and the reply was "Frighten me on 125.8"! Sadly, that controller is now way above the contrails. GB Jack....
I would like to know which minimum separation generally is used between two aircrafts departing the same runway on the same track (in Germany).
It depends on whether there is a surveillance service been provided after departure.
Wake turbulence may be a factor too.
Not enough information to comment beyond that.
