4.11 General debugging

[-=MadCat=-]

Back from some quick tests I just did.

This time I set up a FMB mission with 4 B-29 as "Target Drones" and a Bf110 / Hs 129 for me (both armed with BK 3.7).

Bf110:
Ordered the 4 B-29 to fly a straight path across the map with 400 km/h at 1000m altitude.
Convergence for cannons was set to my usual 400 meters (didnt test other convergences now).

According to Wikipedia the BK 3.7 used in the Ju87 had a muzzle velocity of 780 - 1170 m/s, so I estimated a rough 950m/s (const.) for this test.
For the projectile to cover 400m it takes ~0.42 seconds, where the B-29 covers ~50m. So I took my shots from ~350m distance, primarily aiming for the engines 2 and 3.
Result was the bullets going too low, no hits unless I aimed over the wing or when my aim was sluggish and I didn't keep the plane stable. I took about 30 to 40 shots.
In addition I discovered a pattern, every 3rd shot goes sligtly low but still low, the 2 shots in between go way low.

Hs 129:
Adjusting the bombers' speed to 300 km/h and after taking the moving system into account again, I took my shots from about 360m.
This time aiming for engines 1 and 4.
5 shots 4 dead or burning engines, with the sight right on the engine nacelles. I give that one missed shot to my sluggish aim again.
In total I did about 10 shots with the Hs 129, but it got clear early that the bullets went where I aimed.

I might do more testing when there is more time, but so far my first impression got confirmed.
I even think taking a moving system into the equasion with muzzle velocity, travel time and bla wouldn't be necessary, but hey.

Once time permits and I did more testing on this, I will report further results.
In the mean time, maybe someone else could try some testing too, so we get more results from more than just 1 person.

So far thx all, have a good evening !

[EJGr.Ost_Caspar]

I tried all in a fast rough test at ground targets and recieved very high percentage of hits.
There is some random dispersion, which may influence.

However, it will be looked into. Thanks!

[-=MadCat=-]

Thank you Caspar !

I don't think my tests are the all and end of how to test stuff.
Maybe I'm really missing something or doing something wrong, I'd not take bets that the error isn't on my end.
It's just the the way how well the BK3.7 of the Hs129 alligns with the sight and with the Bf110 I always have the feeling and observe my shots traveling below gunsight center,
that makes me scratch my head.
I just like to point out stuff that I notice, even if this leads to the confirmation that all's right the way it is and it's just me at the end having trouble aiming with the BK3.7.

Thank you all, you do a marvelous job !

[Aviar]

Just wanted to report a small issue with the Do-335A-0.

I've seen them on fire until the end of a mission and they never explode. In the screenshot you will see one where the pilot has already ejected. I watched this one burn for a good 20 minutes until the mission was ended.

Aviar

[SPAD-1949]

Originally Posted by Aviar

Just wanted to report a small issue with the Do-335A-0.
I've seen them on fire until the end of a mission and they never explode. In the screenshot you will see one where the pilot has already ejected. I watched this one burn for a good 20 minutes until the mission was ended.

But others explode very fast and the sphere of ejected debris is large.
Dont let a I-16 or a Mig3 fill the reticle when you shoot. Prepare for the chute, if you do.

[jermin]

The slipball of Bf-109s from G6-Late up to K4 C3 won't be centered until their airspeed reached 640 km/h. Historically, the rudder trim tab of Bf-109s should be trimmed for coordinated cruise at 400 km/h.

[Pursuivant]

Originally Posted by Aviar

I've seen them on fire until the end of a mission and they never explode.

This isn't just the Do-335. A number of planes seem to burn forever without exploding or falling apart. In the past (although, admittedly not with the 4.11 patch), I've seen He-111, Ju-88 and G4M bombers burn for long periods of time.

I think that there's a bug in the programming, since fire either causes an explosion fairly quickly or else it goes on for minutes without damaging the plane.

Realistically, even if there isn't an explosion, a big fire should weaken the plane's structure to the point where it fails. While I believe that it's impossible for fire to spread in IL2, it should be possible to make fire damage the plane in the location where it's burning and adjacent parts, with damage increasing as the plane burns.

[Pfeil]

Originally Posted by Aviar

Just wanted to report a small issue with the Do-335A-0.

I've seen them on fire until the end of a mission and they never explode. In the screenshot you will see one where the pilot has already ejected. I watched this one burn for a good 20 minutes until the mission was ended.

Aviar

This actually brings up an interesting question: is the AI aware of fire extinguishers?
The Do-335 has them for both engines, and I've used them to successfully put out fires.

There are a few other planes(TB3 for example) with engine fire extinguishers built in, but I don't know whether the AI uses them.

[Aviar]

Originally Posted by Pfeil

This actually brings up an interesting question: is the AI aware of fire extinguishers?
The Do-335 has them for both engines, and I've used them to successfully put out fires.

There are a few other planes(TB3 for example) with engine fire extinguishers built in, but I don't know whether the AI uses them.

I have to admit that was a very interesting question. You can actually see the extinguishers activate so if the AI did use them I assume we would see evidence of that. However, I haven't ever seen this action from an AI.

Aviar

[UWBurn]

Hello, first post here, even if i'm a long time Il-2 user.
Congrats for the patch, DT keeps giving new life to Il-2.

Even if it's not strictly related to 4.11 (was already the same in previous patches), the SM.79 damage model should be revised. Currently it's a flying tank, completly off for a plane largely made of wood and fabric. It's really hard shoot down a SM.79 using planes without cannons (i.e. Huricane) and also with 20mm one have to expend a lot of ammo on it. I took a look on the armour values in the fmd and some of them are in fact higher than B-29 ones! The SM.79 has been detailed very much and is very nicely crafted in every other aspect, is a shame the DM has been overlooked.