cannot reproduce Fw-190A8 - MG 151 gun overload jam

[Marduk879]

Hi,

Today i took the Anton for a spin on a singleplayer training mission and during shooting on AI P51 in a turn the left MG 151/20 stopped shooting and according to debrief it was due to "gun overload jam".

Heres the debrief:

Random failures are off.

What exactly are the conditions for this to happen?

They seem really strange and ive never read anywhere about MG151s being prone to jams.

Also to my knowledge allied planes do not suffer jams or stoppages (I own the P-51). Whats the difference between these weapons that the 151 jams and the Hispano on Spitfire for example does not?

(Which by the way is ironic because early and mid generation Hispanos were notorius for jamming because all sort of reasons)

 

Second part of my bug report and question is that ground crew does not unjam the jammed gun when they reload it.

How exactly ground crew does this? Are they magicians?

 

Attaching TRK and DEBRIEF file:
 

FW-190A8_training.log FW-190A8_training.trk

Edited January 31, 2023 by Marduk879

[razo+r]

42 minutes ago, Marduk879 said:

Hi,

Today i took the Anton for a spin on a singleplayer training mission and during shooting on AI P51 in a gentle turn (probably felt like a 2G maybe 3G turn) the left MG 151/20 stopped shooting and according to debrief it was due to "gun overload jam".

Can you reproduce the issue in a quick flight mission? In your track, it takes 40 minutes for the issue to happen. Not only is 40 minutes a long time but it also has a huge chance that you in your track will simply crash and die before coming close to the jamming event.

I've tried it myself quickly and while firing from 2-3 Gs none of the MG151/20s jammed.

 

42 minutes ago, Marduk879 said:

Second part of my bug report and question is that ground crew does not unjam the jammed gun when they reload it.

How exactly ground crew does this? Are they magicians?

 

Rearm simply replenishes ammo. DCS does not actually simulate the ground crew unjamming the cannon, taking out the ammo belt, feeding a new one etc.

If you want your gun unjammed you need to run a repair.

Edited January 31, 2023 by razo+r

[Marduk879]

Running the repair is useless. Makes you shut down the plane and wait 3 minutes while its a job the ground crew should during the rearming process.

Im asking to provide clarifications:

1) How and when the gun jams happen? What are the cirmustances that must be met for it to happen?

2) Are all guns on ww2 fighters treated same or is it only 151 getting jams?

Edited January 31, 2023 by Marduk879

[Doughguy]

I had a similar "issue" with the dora when in a dive i deployed starting flaps which enabled me to pull some tight g curves.
That broke my guns.

 

Edited January 31, 2023 by Doughguy

[NineLine]

I was able to reproduce it, it is indeed G induced jamming as far as I can tell, I will check other aircraft and see if its supported there. I should be where it was known to happen. 

Not surprised that the Dora shares this as well as the code was used as the starting place for the Anton then tuned from there for the Anton. I am hoping that means its on other aircraft where it makes sense. 

Not being fixed on repair seems wrong, that I can report. Thanks

[NineLine]

I tried this internally and they were repaired. If someone is still seeing this, please include a track and I will try it out. Thanks.

[Marduk879]

1) Can you please clarify if you used the REPAIR or REARM option to fix the jammed guns?

As i mentioned already how exactly do you reload a jammed gun? It makes no sense to use REPAIR option to fix your jammed guns.

2) Did you find out if other planes suffer from gun jamming due to g overload aswell (not only Fw-190 series)?

Thanks.

Edited April 26, 2024 by Marduk879

[Marduk879]

On 7/12/2023 at 10:45 PM, NineLine said:

 I should be where it was known to happen. 

Can you elaborate on this? What do you exactly mean? What are the sources for this?

Also returning to my previously mentioned question - Did you find out if other planes suffer from gun jamming due to g overload aswell (not only Fw-190 series)?

 

If this overload is based on documents talking about Mk108 then it is plain wrong as the Mk108 operates completely differently than the MG 131/151 or even older Mg17.

Mk108 uses completely different pneumatic firing system vs the proven and reliable electric system used since the introduction of the Mg17 to the fighters.

(Possibly even older guns used this system, im not sure). 

Edited May 16, 2024 by Marduk879