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[REPORTED]MK82 Airs Detonating Behind the Plane After Release Causing Loss of Hull


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Posted (edited)

Pretty much the title. I'm attempting to drop MK82 Airs in level CCIP, Rippling 6 and it appears in the track that they are colliding after release and causing me to lose my plane. Here's a test track file of it happening. Maybe I'm doing something incorrect, but I'm not sure what it would be.

 

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TestTrk.trk

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Edited by Hawkeye91
  • ED Team
Posted

Hi

 

When I was testing I was not able to reproduce, but then I noticed you are rippling 6 singles, when I was checking I was releasing pairs and all was ok. Try pairs it may help.

smallCATPILOT.PNG.04bbece1b27ff1b2c193b174ec410fc0.PNG

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Posted

BN. You should be able to ripple 6 x1 to get the area coverage required for certain target layouts. Are you saying this is incorrect, that the spacing needs to be a certain distance to correctly deliver?

[sIGPIC][/sIGPIC]

Posted
Hi

 

When I was testing I was not able to reproduce, but then I noticed you are rippling 6 singles, when I was checking I was releasing pairs and all was ok. Try pairs it may help.

 

My exact setup was:

  • Level CCIP
  • Speed was about 0.90 Mach
  • Single
  • Ripple 6
  • 20 foot spacing (10 is set by default)

Posted

The notion of a bomb colliding with another bomb causing a detonation especially when both have almost identical velocities is a little silly. The sensitivity of the fuze to such collisions depends on model, a M904 being exposed at the nose and theoretically could be crushed into detonation while a FMU-139 being buried in the middle of the bomb requires significant deceleration of the whole bomb body to activate. In either case this should not happen before either one has passed their arming time and even after has it ever happened in real life?

 

Looking at the track at the moment of detonation the parallel train of three bombs were going 433, 425, 417 knots from most to least recently released. So collisions were happening at -8 knots relative speed, negative as in the distances were getting farther apart. Not only that but it happened ~1s after release which means the arming time hadn't even elapsed yet. By USAF regulations minimum arming time would be 4.0s with 2.6 being the minimum the FMU-139 is physically capable of.

  • Like 1
Posted
The notion of a bomb colliding with another bomb causing a detonation especially when both have almost identical velocities is a little silly. The sensitivity of the fuze to such collisions depends on model, a M904 being exposed at the nose and theoretically could be crushed into detonation while a FMU-139 being buried in the middle of the bomb requires significant deceleration of the whole bomb body to activate. In either case this should not happen before either one has passed their arming time and even after has it ever happened in real life?

 

Looking at the track at the moment of detonation the parallel train of three bombs were going 433, 425, 417 knots from most to least recently released. So collisions were happening at -8 knots relative speed, negative as in the distances were getting farther apart. Not only that but it happened ~1s after release which means the arming time hadn't even elapsed yet. By USAF regulations minimum arming time would be 4.0s with 2.6 being the minimum the FMU-139 is physically capable of.

Interesting. Yeah definitely some kind of bug going on here then since there is really no way this should be working as intended. So far this has happened to me twice and I was able to replicate it the third time to create that track file.

 

 

  • ED Team
Posted
BN. You should be able to ripple 6 x1 to get the area coverage required for certain target layouts. Are you saying this is incorrect, that the spacing needs to be a certain distance to correctly deliver?

 

No I am not saying it is correct, and I will report, it was late last night when I had a quick look. I will report it to today.

 

thanks

 

 

  • Like 2

smallCATPILOT.PNG.04bbece1b27ff1b2c193b174ec410fc0.PNG

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Posted

 

No I am not saying it is correct, and I will report, it was late last night when I had a quick look. I will report it to today.

 

thanks

 

 

Thanks Big, appreciate ya.

Posted (edited)
This also happens when you ripple GBU-16s or others.

I've set up to drop single, 2, ripple 30ft.. Upon Pickle the plane explodes..

 

Can you reproduce it and post a trackfile? I'll see if I can get it to happen. Are you level releasing or diving?

 

Edit: Also do you mean GBU-12s? We don't have GBU-16s

Edited by Hawkeye91
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