This system exists in the IL-2 game since FB release (2003). CLOD Uses exactly the same what was in the IL-2, the only difference is that CLOD models divided into more pieces, then IL-2 models. ALso, collision objects in IL-2 are NOT boxes. They have very close shape to the actual objects, they are representing. An engine collision, for example, consists from 1-2 external collision objects, representing it's cowl and several internal collision objects, representing separately crank case, cylinder blocks, reduction gear, supercharger, magnetos, etc.

Which is of course why one bullet always, and I mean always stops a P 51, P 47 and P 40.

Sorry SaQSoN, I know that there are supposed to be more complex DMs, but in the game, online, it does not play out that way.

http://blog.chron.com/fanblogtexans/...-There-Yet.jpg

:-P:-P

Sorry, ElAurens, I know, it's painful to know, but whatever you believe happens, not always actually happen.

The DM is complex, as I described it and it works for both on-line and off-line in the same exact way. This is a basic fact.

Is this thread still necessary?
Didn't the 4.12 patch release's countdown start?

I know.

Honestly I do, yet, the "instant stop" engines on these aircraft are still perplexing.

That is compelling. The engines have always instantly stopped without so much as an over-torqued shaft flying through the side of the plane.

I know a decent amount about how the DM works from my time spent over the years involved with the third party modelers and so forth. I don't have hands on experience but I have an idea... what ElAurens says has some merit. I think what it comes down to is we have two types of dead engine behavior and it seems to be consistent to the plane. A FW190 with a dead engine will still have a spinning propeller. So will a LaGG, La-5, Yak, etc. On the other hand a Bf109, P-51, Ki-84 or P-40 tends to get the "insta-stop" propeller behavior where a certain type of damage is sustained and the engine just stops in place. The P-47 gets it too although the chances of it seem to have been reduced from back in the FB1.0 days where it was happening very frequently. They don't all seem to be radial or in-line either.

What I can say is that I've flown the Yak series for a very long time, sustained all varieties of damage so far as I can tell, but never had the engine stop dead. Yeah it'll start to windmill and slowly the RPM drops until it's spinning but mostly useless. It's just a weird thing... Any idea why these behave this way? Because the Yak is older to the game I'm wondering if it doesn't have as complex a model for it?

It's distinctly different between different types. There may be a specific reason in the DM. I just don't know what.

If anyone could do some tests with a friend online we could possibly get some definitive proof of this behaviour (or lack thereof). A good starting point would be one player parked in a bomber with a turret in front of a MP spawn point and another spawning in and switching their engines on in various aircraft before getting fired upon. For extra points, move the bomber to a different position relative to the aircraft and repeat.

How much difference is there between the dead-stopped and the windmilling engines? I get the impression the crippled Soviet engine might let you glide a little further en-route back to base, but it's just as useless in combat as the dead American engines.