I know the sim introduces delays randomly into the system, and increasing turnaround time reduces probability of flight being delayed. But what is the condition when the flight actually gets cancelled?
Are you talking of just schedule based delays or all? Anyway it's based purely on probability calculation and some random factors, and probability depends of course on the "tightness" of the schedule for these timetable based delays/cancellations.
Quote from: sami on August 11, 2010, 02:22:19 PM
Are you talking of just schedule based delays or all? Anyway it's based purely on probability calculation and some random factors, and probability depends of course on the "tightness" of the schedule for these timetable based delays/cancellations.
I meant mainly schedule based delays (which I have some control over).
Few things I was wondering about:
- do the delays carry over from flight to next flight, so that the plane has a chance to catch up? How much is too much, when the sim decides to cancel?
- Is advisable to have more extra time between flights (to avoid cancelling take-off) and less time on turnaround? I guess the plane has to come back, no matter how late... Or is the extra time (prior to departure, and prior to return) treated equally?
- Is any extra time needed before or after A checks?
I just want to ask something since it is related to canceled and delayed flights.
I have some cancellation caused by technical problem with a/c and it makes up about 15% or 28 cancellation out of 192 cancellation. But, the thing is, my delayed flights caused by technical problem only makes up about 0.05% or 14 mins out of 30086 mins of delay. Is this normal? The cancellations are higher in percentage than the delays?
I have these same questions- yet I have one more: Does increasing the amount of staff decrease delay probability?
Delays are caused even by turn around time. Now, I can't tell you which one is more important, but if you keep a good turn around time with staff level at 100% you should not have many problems.
Consider that delays (I'm talking about my 2yrs experience here) are mainly caused by weather and traffic, so if you experience any delay caused by those factors even your competitors are very likely been delayed as you're.
My suggestions for delays and cancellations:
-keep maintenance staff at more than 100% (but not much more)
-keep good turn around time (chance of delay </= of 10%). More important, schedule good turn around time at your base apo. If you keep a tight sched, the first delayed flight can affect the following ones if turn arounds are not long enough. Just think about Ryanf***ingAir...
-if you're based in a country/apo well known for its bad weather in some parts of the year... Well, think twice about opening a base there next time you play. If you want clear sky and no clouds, open a base in the Middle East. When based there I had only 4 or 5 days with flights delayed because of bad weather.
-the worse is the a/c condition, the more likely that a/c will experience tech faults, so delays/cancellations. New a/c and good maintenance are the answers.
Hope it helped
My 2 years B767 that have 98% condition still make a cancellations because of technical problem. :(
Quote from: MunMaRu on May 13, 2011, 06:20:52 AM
My 2 years B767 that have 98% condition still make a cancellations because of technical problem. :(
Have you had a look at your maint/tech dept personnel? They could be the answer... And what about those tats?
It's just happen on another plane too (Condition 91% Age 5.72 y). My personel office is 100% on morals and staff number.
Delay
-Technical problem with aircraft 1 min (~ 0.05 %)
Cancellation
-Technical problem with aircraft 4 (~ 33.33 %) :-\
Quote from: MunMaRu on May 13, 2011, 06:20:52 AM
My 2 years B767 that have 98% condition still make a cancellations because of technical problem.
Even a factory new plane can have cancellations and delays because of tech issues. But the higher the condition and newer plane the smaller the probability.
There is NEVER a full & pure 0% chance for them.
Hi
Quote from: sami on May 13, 2011, 10:10:35 AM
Even a factory new plane can have cancellations and delays because of tech issues. But the higher the condition and newer plane the smaller the probability.
There is NEVER a full & pure 0% chance for them.
Correct, remember when AF introduced their A380. They had a lot of cancelations then :P
Quote from: romeozulu on May 13, 2011, 01:40:13 PM
Hi
Correct, remember when AF introduced their A380. They had a lot of cancelations then :P
That's because they're french... Ops! ;) Joking! Btw, Type transition is always a mess unless you can get people with experience coming to work for you (that's what happend for FedEx with the B777F: they just went to some majors and asked people to work for them with a 20% higher salary and the EIS went really well). Even Emirates had issues with the type but more because of tech issues related to the high end cabin setup...
Hi
Quote from: EYguy on May 14, 2011, 01:52:37 AM
That's because they're french... Ops! ;) Joking!
:P :P