CBU 97/105

[awdrgyjo]

Whats the lowest optimum altitude to release 97/105 CBU so there is a concentrated spread, but enough altitude so they deploy correctly, thanks in advance.

[Leto]

If you talk about HOF (where the CBU opens and releases the BLUs) it is 900ft... though 700ft is possible

 

If you talk about release... well... that depends on situation. Theoretically just above your HOF but practically you want to have some space between you and a target you gonna lay CBU-97 on.

 

Optimum for me is 8000ft and above

Edited November 18, 2012 by Leto

[awdrgyjo]

If you talk about HOF (where the CBU opens and releases the BLUs) it is 900ft... though 700ft is possible

 

If you talk about release... well... that depends on situation. Theoretically just above your HOF but practically you want to have some space between you and a target you gonna lay CBU-97 on.

 

Optimum for me is 8000ft and above

it was the HOF that I was refering to, thanks for the reply.

[Megagoth1702]

I usually release at 500. :P Works for me. No wind bullshit. Spread is a bit tight but that's okay for me.

[112th_Rossi]

I dont think it matters since the skeets pick out the targets anyway.

[Megagoth1702]

Yeah but I think I suffer from the placebo effect that causes me thinking that the spread and effective area is better when the chutes have been in the air for a while. They have time to stabilize, get a 90° angle to the ground etc.

 

If the bomb opens up at 500 sometimes the chutes' angle to the ground is less than 90° and that makes the attack a bit "directional" instead of "top down".

[Leto]

I dont think it matters since the skeets pick out the targets anyway.

 

 

That's true to some point. I don't know if it is still valid data but under 1.2.1 I took a test with targets set up in concentric circles. This is the average out of 10 tests I've flown:

 

CBU 105

 

HOF / targets destroyed

 

500 / 10

700 / 7

1200 / 13

1800 / 20

3000 / 15

 

So... yes it does matter given that you have a couple of targets spread over an area. HOF 1800ft was in that case of target arrangement the best choice. When you have like let's say 5 tanks next to each other HOF 500/700/900 will minimize winddrift and most probably do the job. But that will only work in a flat environment. Try this in mountainous area and errors will increase dramatically.

[Megagoth1702]

Did you test with NO wind? Did you test multiple times for each setting? Otherwise it might have been random. :-/

[Leto]

This is the average out of 10 tests I've flown

 

and yes... no wind and latest possible drop for CBU105 so it has a very steep angle

[Habu_69]

I can not seem to hit anything with CBU-105. I switched to Weapon view and watched the parachuted submunitions drift far from the target. This does not happen with CBU-103's. When I drop them under conditions identical to the 105's, they hit the target, as observed in the TGP. Of course they inflict little damage to armor.

[Tholozor]

Are you setting the Height of Function on the 105 to a lower altitude? By default they're set to open at 1800 feet AGL, resulting in long drift time. 700 or 900 feet is usually a good area in my experience.

[Evil.Bonsai]

I can not seem to hit anything with CBU-105. I switched to Weapon view and watched the parachuted submunitions drift far from the target. This does not happen with CBU-103's. When I drop them under conditions identical to the 105's, they hit the target, as observed in the TGP. Of course they inflict little damage to armor.

 

103's and 105's are completely different weapons. The 103 drops bomblets that fall to the ground. The 105 drops parachute munitions that float (at first). Wind won't have nearly as much affect on the 103 as compared to the 105.