reported earlier Is the DUD cue for high-drag bombs wrong?

[raus]

Hi,

I've just been doing a little testing with Mk-82 Snake eyes and Mk-82 Retarded, trying to bomb a runway, old-style, low and fast. However, I am finding it impossible to get the pull-up cue under the FPM, resulting in a DUD cue and bombs not exploding.

I have tried CCIP with a shallow dive, and also AUTO, flying level, 500kts at 500ft (and also tried lower), with the runway center designated (Incirlik FWIW).

I set the apropriate release method, MFUZE nose, EFUZ inst (also tried DLY1), DRAG  RET. I set in the UFC a QTY=10, MULT=1, INT=1000 (also tried 990, just in case)

Nothing has worked. It is a shame, as if I want to release from altitude, I do not need retarded bombs... I guess it is bugged, and will provide a track later, but wanted to check first, in case I am missing something stupid, or if it is already reported.

 

Thanks!

[raus]

No feedback? Nobody tried? Guess I‘ll get a track and file it as bug, as I have not been able to release retarded munitions flying low and level, and could not find any obvious mistake 

[NineLine]

Works good here. 

FPM must be above horizon, cannot be losing altitude.

Place FPM just above horizon line.

Please supply a track if you continue to have issues. Thanks!

[IvanK]

The DCS calculation and mechanization of the pull up cue is in error and way to pessimistic. This has been reported.

I suggest this is the main issue that you are seeing.

[raus]

@IvanK thx, that is what I thought, but wasn't sure if it was reported... Anyway, here I go with a couple tracks, just in case

@NineLine please, have a look at these tracks, as they show two different behaviors, and I don't think it is completely OK...

• snakeeyes_CCIP.trk shows a low level (300ft) attack run at 550kts (GS). I select snake eyes, fuses (nose/inst) and retard option. I also configure the 10 bombs to be released individually with a 990ft spacing, trying to cover the runway. However, the pull-up cue stays consistently above the FPM. And you can see that I fly level and, sometimes slightly ascending. The bombs release and fuse correctly, though. Excuse the bad lineup, I configured a mission starting very close to the runway, and did not pay much attention to lining up, as I was focusing on the settings and FPM
• snakeeyes_AUTO.trk s the same configuration, just selecting AUTO. I use RALT and CPL autopilot modes to bring me to the runway threshold this time (lazy me!) but I disconnect the autopilot moments before the attack. You can see the pull-up cue above the FPM all the time, and the DUD cue in the HUD. Not all bombs get released, and those that are released, did not fuse properly (indeed, they were DUDs). I think this should have been a valid attack, maybe not with low drag bombs, but definitely with retarded bombs.

snakeeyes_CCIP.trk snakeeyes_AUTO.trk

[Hippo]

I haven't viewed your tracks (yet) but it seems to me that if you're trying to drop 10 bombs with a spacing of 1,000 ft, then that's 9,000 ft between the first and last bomb.  Since the CCIP predicted point is supposed to be the "midpoint" of the bomb drop then the solution simply might not be possible from a height of 300 ft.  At the moment you press the pickle button the last (i.e. the first to drop) bomb already has to land / have landed 4,500 ft behind the CCIP pipper.  I really don't know, but just a thought.

Before I read your post I had been experimenting with 82y and I had no problems dropping 8 in sequence.  However my spacing was only 80 ft.  I was flying at 500 kts and 500 ft.  As already stated the trick seems to be keeping the fpv on or just above the horizon line.

Edited June 21, 2022 by Hippo