Aircraft stress and failure, cause and effects.

[sam777777]

Testing the aircraft's engine system, through stress and failure.

 

I'm looking to stress and cause fault in the engine, so far I've already attempted to caused damage through excess temperatures, pushing the oil temperature up off the scale I observed no damage (WIP apparently).

 

However I'd like to test other things, the mixture control appears to be automatic, so how can I test detonation (overly lean mixture) effects?

 

As well as this I'd like to force high manifold pressure, how could I do this (High throttle plus overly agressive prop pitch doesn't seem to work).

 

I'd love to find other ways to cause failures, so if you have any other input into the other systems (hydraulic or general airframe) please post here. I'm currently looking at cascade effects of failure using the inbuilt failure system, although it feels sorta cheap. Oh, I'm also trying to figure out the effects of icing, but I believe the P51 is fuel injected so this is harder to investigate.

 

I find that the way things fail is the most telling part in figuring out how something works, hence why I'm so fascinated in this.

Edited August 19, 2012 by sam777777

[BigfootMSR]

http://forums.eagle.ru/showthread.php?t=87410

 

Current list of systems under development. Keep in mind, this aircraft is still in its beta form and not all systems and failures are properly implemented. All in due time though. Then you can test away.

 

Edit: Upon doing a bit more reading around the p51 sub forums, It would appear this list is a bit out of date. But, it IS still a beta and not everything is implemented yet.

Edited August 19, 2012 by BigfootMSR

[Flamin_Squirrel]

Oh, I'm also trying to figure out the effects of icing, but I believe the P51 is fuel injected so this is harder to investigate.

 

Nope, Merlins are fitted with a carburetor.

[sobek]

Nope, Merlins are fitted with a carburetor.

 

Correct, a floatless Bendix Stromberg type carburetor.

[Ali Fish]

good thread this, for when the bird is finalised i would like to see some compilation by a dev detailing the ins and outs of failures.

 

too long have we been flying this without failures, i think were all going to need to re learn a great many things. which is just excellent to do all over again.

 

:joystick: to:helpsmilie:to:book:

[beagleboy03]

Is it possible to have persistent/cumulative damage modeling added to the sim? For example fatigue failure brought on by over G-ing the aircraft across the span of several missions in a campaign.

 

I think a system like this could have a big impact on a campaign as it may make you think twice about pushing the throttle into WEP to catch a fleeing bandit if you knew it could ground your aircraft for several days while your crew chief is rebuilding your engine.

[cichlidfan]

Is it possible to have persistent/cumulative damage modeling added to the sim? For example fatigue failure brought on by over G-ing the aircraft across the span of several missions in a campaign.

 

For what purpose? Do you plan on not flying while the engine is rebuilt or are you going to be flying another available aircraft (like in real life)?

[beagleboy03]

Well that is a good point. I suppose it would depend on your rank/position for the campaign. It would be unlikely that you would miss out on any missions if you were a flight lead or squadron CO but if you where the low man on the totem pole you could get bumped from the flight. I would think that as a flight lead or squadron CO it could affect you by being short on aircraft for the next mission. All of that would of course depend on OP tempo, # of A/C required for each mission etc.

 

As an aviation officer I know what sort of operational effects over torquing an aircraft can have on your maintenance flow and consequently your operations. I do understand, however, that this is a flight sim and not a maintenance sim so it would definitely not be everyone's cup of tea. I do think it could add a new dimension and some realism to the sim as being 4/4 or 8/8 on aircraft for all missions all the time is a but unrealistic especially when factoring in maintenance and combat losses. Perhaps it could be a toggle-able option and decisions regarding planes/pilots for each mission would depend on position and rank.

[cichlidfan]

Except we have no positions or ranks.

[EtherealN]

Errr, no, how does it make sense to make the "good guys" more fatigued than the regular joe in the squadron? Way to make sure they make mistakes and get killed. ;)

[beagleboy03]

I guess I was just thinking that a system ala A2A's where your aircraft wears with time and develops various aircraft specific quirks added to the excellent combat dynamic of DCS would, for me, be the ultimate in sims. I think it would be cool to know that your plane ideals a little high/low etc. compared to others in the hangar next to it but it would appear that I am in the minority.

 

Back to the original topic of damage modeling in the thread perhaps you could try to over-rev the engine by quickly changing throttle and prop pitch in a dive. I'm not sure how much lag there is in the constant speed system but it may be enough to bust an aircraft limit.

[Pyroflash]

I think he is talking more about flying an aircraft with non-essential systems broken because he did something stupid in his last flight. Though I would agree with you there, the plane isn't going to go very far without an engine. This could perhaps work into some sort of mercenary campaign, where you get money that you need to buy weapons and fix your aircraft. Not exactly realistic, but it would sure be fun.

[sam777777]

good thread this, for when the bird is finalised i would like to see some compilation by a dev detailing the ins and outs of failures.

 

too long have we been flying this without failures, i think were all going to need to re learn a great many things. which is just excellent to do all over again.

 

:joystick: to:helpsmilie:to:book:

 

Exactly, I'd love to see a "damage summary" and be able to test it out.