Viewing status/amount of hours for the different failure components
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Hello,
I've been putting in a ton of hours flying my new Bonanza home from Peru to Canada, and mostly keeping the failure rate to 2x (for some reason I seemed to get a lot of failures on 5x). There are some components I really would rather not have fail during a flight, but I feel like just upping the MTBF number is cheating. Instead, I've been doing occasional 'routine maintenance' where I fail and reset the component instead. It would be be great to actually see the amount of accumulated hours for each component. I assume these are tracked somewhere so just having it displayed next to the component name on the failure screen seems like it should be possible.
It would also be great to include oil degradation and changes.
Thanks! -
Hello! I'm glad you've been enjoying the latest addition to the Black Square fleet!
Wow, I could swear I had coded the option to disable individual failures by turning the MTBF all the way to zero. It definitely was a feature in the Analog Series, but I must have forgotten to implement it when creating the new interface. I will get on this soon, but in the meantime, you can either turn the MTBF to 1,000,000 (approximately one failure every 100 years of continuous operation, and if you have one, then perhaps consider buying a lottery ticket), or you can comment out the failure in code with my instructions. Sorry about that! I literally typed an entire message before thinking that it was suspicious that I didn't mention the "Failure Off" setting in my manual!
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Hello,
I don't actually want to disable the failures or set them to an unrealistic MTBF. What I would like is the ability to maintain the aircraft to mitigate those failures instead. I could definitely set the oil pump failure to a crazy number, but in real life I would instead be servicing or replacing it so that it doesn't let go in the middle of a flight. I've been doing this by failing and then resetting the component, which I assume resets the clock on it (please let me know if I'm wrong). It would be nice to know how much time I have on the different components. -
Hello,
I've been putting in a ton of hours flying my new Bonanza home from Peru to Canada, and mostly keeping the failure rate to 2x (for some reason I seemed to get a lot of failures on 5x). There are some components I really would rather not have fail during a flight, but I feel like just upping the MTBF number is cheating. Instead, I've been doing occasional 'routine maintenance' where I fail and reset the component instead. It would be be great to actually see the amount of accumulated hours for each component. I assume these are tracked somewhere so just having it displayed next to the component name on the failure screen seems like it should be possible.
It would also be great to include oil degradation and changes.
Thanks!Hi @WheelmanPEI,
I think there might be some confusion about the concept of MTBF.
MTBF doesn't need accumulation, as it uses a random variable. It's a bit mathematical to explain, but I can use an analogy to explain it.
Suppose we have a fair coin, and we flip it. The coin can land 50% on its tail, 50% on its head, which is fair.
If I will make a bet, that it will be head the next time I throw it, its an honest 50/50 bet, so far so good.Now suppose I did flip the coin already 10 times, all resulting in head. I would like to make the same bet, the next will be head. This is still a fair bet, 50/50. As the previous outcomes do not impact the next outcome. (The coin doesn't care, it's still a fair coin)
This feels a bit weird, and I get that. The reason why it feels weird, is because the chances that I would throw 11 heads in a row are really really small. That is, if I pick up a coin now and try to throw heads 11 times in a row.
But, here we make the mistake. Saying: "I will flip 11 times head in a row" is fundamentally different than "I flipped 10 heads already, I will flip it again". See what I'm saying?
The previous outcomes of a random variable does not influence the next outcome of that same random variable.Back to the beginning, MTBF uses that same concept. Mathematically speaking it translates: "The machine has a x% chance of failing" to a "How many days on average can this machine go without failure?". Or, back to the coin: "What is the chance of me throwing x times head in a row, starting now?".
Just as with the coin, the outcome of the next failure-free flight is not influenced by the previous flight. But we can make a statement about the average length of a "failure-free"-streak. And that statement is the MTBF (Mean Time Between Failures), it converts a percentage of failure, to a comprehensible number. I don't know what "magneto failure 0.0001%" means, but I know what "magneto failure on average once every 5000 hours" means.
That being said:
- Increasing the MTBF to 1,000,000 will make the chance of a failure neglectably small
- Purposely failing and repairing a component will not make a difference on the chance of failure
- There are no logs on the "time without failures", as keeping track of this requires programmers to do more bookkeeping, while the previous outcome does not influence the failure rate.
@Black-Square Please correct me if I'm wrong. I could not let the opportunity pass, to spread the knowledge of my favorite statistics teacher.
P.S. Your car does not use MTBF, but lifetime of components, so please, don't use math to skip on maintenance
