Aurora 4x

C# Aurora => C# Mechanics => Topic started by: Silvarelion on August 27, 2020, 03:19:17 PM

Title: Catastrophic maintenance failures
Post by: Silvarelion on August 27, 2020, 03:19:17 PM
hey guys

I've had two of my carriers explode during training to catastrophic failures.  They weren't damaged,  had lots of msp, and were only 25% of the way to behind an overhaul.  Just wondering what the rules are for that.  Training isn't so fun when it means losing 65kt carriers with 45kts of expensive beam ships and scouts.
Title: Re: Catastrophic maintenance failures
Post by: Droll on August 27, 2020, 03:38:45 PM
What components failed, what is the max repair MSP of your carrier and what is "lots of msp" in numbers.

Also what was the AFR of your ships and how many eng bays for such a ship.
Title: Re: Catastrophic maintenance failures
Post by: Silvarelion on August 27, 2020, 04:19:35 PM
There was no component stated in the failure.

Max msp: 10,000.  Max repair: 100 (a single commercial engine).
Title: Re: Catastrophic maintenance failures
Post by: Froggiest1982 on August 27, 2020, 05:49:19 PM
There was no component stated in the failure.

Max msp: 10,000.  Max repair: 100 (a single commercial engine).

can you please post your design?

Also, were there enough maint facilities to actually service the ship?
Title: Re: Catastrophic maintenance failures
Post by: Jorgen_CAB on August 27, 2020, 05:56:18 PM
There was no component stated in the failure.

Max msp: 10,000.  Max repair: 100 (a single commercial engine).

can you please post your design?

Also, were there enough maint facilities to actually service the ship?

Well maintenance facilities don't work when you put the ship into a training facility.



To OP...

The ship will run its maintenance clock twice as fast so maintenance failures will happen allot more frequently and this will be felt even more so on a really large ship.

You must have wither run out of maintenance supplies or you have some really large component on the ship the max supplies on the ship can't handle, it would not blow up otherwise from a maintenance failure.
Title: Re: Catastrophic maintenance failures
Post by: Iceranger on August 27, 2020, 06:18:53 PM
This is a new bug we just found:

http://aurora2.pentarch.org/index.php?topic=11565.msg140468#msg140468

Basically, maintenance failure roll cannot distinguish components that are already destroyed and the components that cannot fail (such as hangers, fuel tanks), and after 20 such failed rolls, the ship explodes.

This is extremely unlikely for regular ships where most of their components can have maint failure. But for large barge carriers that are mostly hangers, or military tankers/MSP supply ships/colliers (yes, surprisingly, magazines do not have maint failures), it can happen with a not insignificant chance.

Basically, 80% of the ship are hangers -> 1.15% chance of explosion each time maint failure is rolled
90% -> 12.16% chance
93% -> 23.42% chance
95% -> 35.85% chance
Title: Re: Catastrophic maintenance failures
Post by: Froggiest1982 on August 27, 2020, 06:31:19 PM
There was no component stated in the failure.

Max msp: 10,000.  Max repair: 100 (a single commercial engine).

can you please post your design?

Also, were there enough maint facilities to actually service the ship?
Well maintenance facilities don't work when you put the ship into a training facility.

Didnt see was on training, thanks.

I think Ice already found out what is actually going on.
Title: Re: Catastrophic maintenance failures
Post by: TheTalkingMeowth on August 27, 2020, 07:23:21 PM
Wait, magazines don't have maintenance failures? I can't say I remember seeing one fail, but I'm pretty sure they get factored into the life and max repair calculations.
Title: Re: Catastrophic maintenance failures
Post by: Iceranger on August 27, 2020, 07:27:56 PM
Wait, magazines don't have maintenance failures? I can't say I remember seeing one fail, but I'm pretty sure they get factored into the life and max repair calculations.

Yes, every component other than the armor is factored into max repair and maint life calculations. But some cannot fail.
In this sense, the maint life is not an accurate estimate either.
Title: Re: Catastrophic maintenance failures
Post by: Droll on August 27, 2020, 11:13:54 PM
A magazine maintenance failure would have a good chance of causing a magazine detonation - I think Steve thought that it wouldn't make a very compelling feature to have that randomly happen.
Title: Re: Catastrophic maintenance failures
Post by: xenoscepter on August 28, 2020, 12:59:51 AM
Wait, magazines don't have maintenance failures? I can't say I remember seeing one fail, but I'm pretty sure they get factored into the life and max repair calculations.

Yes, every component other than the armor is factored into max repair and maint life calculations. But some cannot fail.
In this sense, the maint life is not an accurate estimate either.

Negative. Armor is factored into Maintenance Life.
http://aurora2.pentarch.org/index.php?topic=11056.msg128800#msg128800
Title: Re: Catastrophic maintenance failures
Post by: Silvarelion on August 28, 2020, 06:40:47 AM
For those who are curious; here is my design.

Thank you to Iceranger and Somebody1212 for running down this bug
Title: Re: Catastrophic maintenance failures
Post by: Iceranger on August 28, 2020, 09:03:24 AM
Wait, magazines don't have maintenance failures? I can't say I remember seeing one fail, but I'm pretty sure they get factored into the life and max repair calculations.

Yes, every component other than the armor is factored into max repair and maint life calculations. But some cannot fail.
In this sense, the maint life is not an accurate estimate either.

Negative. Armor is factored into Maintenance Life.
http://aurora2.pentarch.org/index.php?topic=11056.msg128800#msg128800

You are right, I meant to say `every component other than the armor is factored into max repair and average maint cost calculations`. The other part of the maint life, the AFR, is a function of total ship size (and other stuff), thus everything on a ship affects that.
Title: Re: Catastrophic maintenance failures
Post by: kenlon on August 28, 2020, 12:49:59 PM
Wait, magazines don't have maintenance failures? I can't say I remember seeing one fail, but I'm pretty sure they get factored into the life and max repair calculations.

Magazines really should have maintenance failures that result in the missiles loaded into them being unavailable until they are repaired, thinking about it.d
Title: Re: Catastrophic maintenance failures
Post by: db48x on August 28, 2020, 01:07:40 PM
Same with fuel storage. A simple box that holds things rarely fails, but the magazine feed system or the fuel pumping system can fail.
Title: Re: Catastrophic maintenance failures
Post by: Iceranger on August 28, 2020, 02:22:51 PM
Wait, magazines don't have maintenance failures? I can't say I remember seeing one fail, but I'm pretty sure they get factored into the life and max repair calculations.

Magazines really should have maintenance failures that result in the missiles loaded into them being unavailable until they are repaired, thinking about it.d

If magazines have maintenance failures, then if it fails, it has a chance to detonate, and you will lose the missiles stored within. Since in the current mechanism, maintenance failure is basically applying damage to the component rolled by RNGesus.