Time between maintenance and flight.

[tofen]

I was just wondering, since you need to schedule some time between on home base between flights to avoid delays, is it the same thing with maintenance? i.e. should the first flight depart 45-50min (for a small aircraft) after the maintenance is finished, or can you depart again directly at the same time the maintenance ends without risking delays?

[tomahack]

good question! Can't wait the anwser

[Unbornio]

I doubt maintenance delays being coded since I never experienced them right after my A checks. 

[Sami]

No, they won't cause delays for now at least.

[Jps]

I've always left some half of the minimum turn around time in between to allow the passengers get on board, but I quess it's just waste of time, if it's going to stay like Sami said.

[tofen]

Thanks' for the info Sami, I just found it strange that I had a lot of cancellations on an outbound flight and found out that it was scheduled right after an A-check. But I'll guess it's just my old cranky planes that courses me headaches then .
Still good to know for the future

[TommyC81]

Just want to bring this one up again and verify the need for time between check and flight before/after.

It seems having an A or B check scheduled to close to last preceeding flight could cause delays. But maintenance scheduled just before first following flight doesn't seem to matter at all. What is the correct way to schedule maintenance? Just not overlapping any flight and all good? Or do we need a bit of time in between flight and maintenance to avoid delays?

[Jona L.]

I vary those times, if I can I take one hour, or a half one. if needed I'll reduce it to 15mins or even no time!
just up to the schedule

[TommyC81]

Trying to figure out your reply...

So what you are saying is that you don't account for any special time in between flight and maintenance?

In other words, last flight before maintenance lands at 4, maintenance starts at 4 and lasts until 9, next departure is 9. That works ok?

Should it be thought of as the necessary time in between flight and maintenance is accounted for in those 5 hours for an A check, and 24 hours for a B check?

[bleedfax18]

In other words, last flight before maintenance lands at 4, maintenance starts at 4 and lasts until 9, next departure is 9. That works ok?

In this example it would mean: last flight before maintenance lands at 4, min. turnaround time has to be added (let's take 60  inutes as an example), so maintenance can start at 5, next flight can leave at 10

And yes, it works just fine

[TommyC81]

So, I need to add at least the minumum turnaround time before plane is ready for maintenance? For example, 35 mins (for a BAC-One Eleven 500) after last landing until maintenance can start. (I guess the scheduling will complain otherwise that it overlaps?) But after maintenance I can schedule a flight right away with zero gap?

Would to little time by any chance cause a delay or cancellation of preceeding or following flight?

[swiftus27]

Tommy, that's how I do it.  Doesn't seem to take issue with it.  But even at the shortest turn around, a plane MAY have a 25% chance of a delay.  So, that means every 4 weeks you would have 1 flight going late because you scheduled this way (4 a checks per month at 25% chance = 1.0.)

[Jona L.]

Yo need the minimum TAT until plane ca "departure again", meaning you have this time without the ability of using it anyway!

also to explain my post:

I first make all the routes,
and then look, if there's some place for the checks,
or if a route could be more profitable departing 5 hrs later (by getting into peak time for example)
and than as the last step I put the check times in the schedule
If I have more time left, I let 50%-50% of the time before/after the check, but only for the symmetry xD
if necessary, or I just want to do it, I put no minute between them

hope that helps!

also another tip:

don't let routes depart every day, but differ the times till you get a minimum of time between the new route and the previous !
and use longer TATs(turn around times), and try the out a little, till you have <1% delay risk(shown right next to the TAT entering filed in the route opening window, and can be set in the airline settings at the bottom, and then click expand)(see list for my worths)

Default (minimum)	time for ~1% delay risk
20min	35-40min
25min	45min
35min	60min
40min	70min
70min	120min
80min	135min
110min	180min
120min	200min

[Sami]

Do you guys even read what I write on the forum?

No, they won't cause delays for now at least.

[TommyC81]

Do you guys even read what I write on the forum?

Tried reading throgh what's been said, and also referred to the manual (only reference found on this page: https://www.airwaysim.com/game/Manual/Startup1 , saying that maintenance cannot overlap, nothing about causing delays if to tightly scheduled. (After some testing it seems obious that it can't overlap the turnaround time of preceeding flight) With your post in mind, does to tight scheduling regarding maintenance cause delays?

Will try again to search it...

Update: Did the searching, nothing found. Tried "scheduling", "maintenance", "delay", "delays", "maintenance delays", "scheduling delays" etc. Both posts made by sami specifically and anyone in general, came up with nothing that clarifies it. Maybe it could be useful to put it in a separate topic in the manual; "Scheduling" including subsections which covers the need of time between flights, and flights and maintenance, in order to avoid delays.

Or maybe the necessary time for scheduling should simply include all necessary time for turnarounds and things like that, so you're simply just blocking a bit of time. And on top of that, let time for maintenance differ between the different aircraft types to a further extent than just being "Medium" etc.

[kevinmh]

Or maybe the necessary time for scheduling should simply include all necessary time for turnarounds and things like that, so you're simply just blocking a bit of time. And on top of that, let time for maintenance differ between the different aircraft types to a further extent than just being "Medium" etc.

Yes, what I understand is that the turnaround time is already included in the maintenance time, so you can schedule a takeoff right after the maintenance. Also, I argee that the maintenance time (A check) should be different for different aircraft types too.