Oleg, SOW engine abuse by pilot?

[Azimech]

I'm starting this thread since I cannot find any topics with the appropriate subject.

I wonder how engine damage in SOW will be modeled. the IL2 series are lacking here, there hardly is any penalty for exceeding the manifold pressure, apart from overheating.

For example, if we are flying below the critical altitude of the first supercharger stage and switch to the next, we don't throttle back. The extra drag the next stage produces is modeled correctly since engine RPM drops. But the manifold pressure goes up to a maximum, say 60 inches in the F4U, which is already more than the 53 inches allowed for military power. In real life the pilots throttled back, engaged the next supercharger stage, and throttled up to the maximum allowed manifold pressure if he wanted military power. This had to be done to prevent engine damage due to engine knock/detonation/pre-ignition of the fuel/air mix in the cylinder, which can lead to catastrofic damage.

I'm making a few references to my posts in the other topic:

http://forum.1cpublishing.eu/showpos...postcount=1591

http://forum.1cpublishing.eu/showpos...postcount=1593

http://forum.1cpublishing.eu/showpos...postcount=1595

And a post by someone else:

http://forum.1cpublishing.eu/showpos...3&postcount=21

More information on this subject:

http://en.wikipedia.org/wiki/Engine_knocking

Thank you for your time.

[Azimech]

Interesting reading, more in-depth information on detonation, although it is focused primarily on non-supercharged aviation engines. It shows again the element of heavy knocking or pre-ignition is a severe danger.


These graphs show a non-supercharged engine operating at sea level. At higher manifold pressures, damage will happen much sooner.






http://www.avweb.com/news/pelican/182132-1.html

I'm pretty happy I drive a turbocharged Diesel

[proton45]

Its my understanding that the new damage model is going to be much more complex...

And from what I remember, damage modeled within a specific mechanical system will have consequences (triggers maybe) that will effect "other" mechanical systems within the aeroplane (I think I remember reading something about this in a "Q&A" with Oleg)...

I think that Oleg is going to save the specific features of the new damage model for the game release...but I would love to be proven wrong.


p.s. Nice reading Azimech, thanks.

[kimosabi]

Yeah, I remeber some talk about stuff like damage modelling. Oleg mentioned in an interview that all systems can get damaged and some areas which are linked to others will have a domino effect.

For example hydraulic pressure, too low on that and your gear won't drop.

[Azimech]

I never get a warning about hydraulics in IL2 1946, but often my gear won't lower due to battle damage.

Or the hydromatic propellor governor goes to fine pitch, again due to battle damage. In real life, this can also happen when metallic particles in the oil clog hydraulic lines or components.

[Tempest123]

Yeah, I've wanted to see more complex engine management in Il2 for a while and I hope it comes in SoW. One of the damage features I do like in Il2 is the runaway prop governor, but I wish the routine of starting the aircraft, and slamming the engine to full rev's and taking off would be changed.

[kimosabi]

How awesome wouldn't it be if you had to prime, see your mechanic run the inertia for you and basically do all the stuff you'd need to do to even get it started......*drools*

[Azimech]

Priming is cool but having a man standing on the wing of your 109 or Dora cranking like hell would be a lot of work... I'd settle for an electric-inertia starter.

Something that is not included in the series is the http://en.wikipedia.org/wiki/Coffman_starter

http://www.youtube.com/watch?v=S1rc3AmX0XQ

http://www.youtube.com/watch?v=IACjOvyx5hs

[K_Freddie]

Don't get too excited about the Bits-n-Pieces.
If you've been around long enough, you'll remember Oleg giving the exact reasons why he did not put the whole engine startup stuff into IL2.

If he puts this into SOW I'll be surprised, but if you want that stuff, there are other sims that have it.

[MD_Titus]

quite. i gather SoW is meant as more of a combat flight sim, than a procedural one.