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General Forums => Aces High General Discussion => Topic started by: SEraider on July 16, 2012, 12:32:38 PM

Title: Blast zones from a single bomb or multiple salvo'd bombs
Post by: SEraider on July 16, 2012, 12:32:38 PM
Is there a difference is blast radius from 2 - 1,000lbs bombs salvo than 1 - 2,000lbs?  Some guys in my squad seem to think there is no difference but I think there is. 

I think the core concentration is equal but the range is larger in larger bombs.  Is this true?
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Lusche on July 16, 2012, 12:37:09 PM
The main difference is that 2 1000lb have simply more destructive power than a single 2000lb bomb.

bomb - actual damage value

4000 - 3125
2000 - 1718
1000 - 1000
500 - 562
250 - 313
100 - 156
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: titanic3 on July 16, 2012, 12:39:43 PM
The main difference is that 2 1000lb have simply more destructive power than a single 2000lb bomb.

bomb - actual damage value

4000 - 3125
2000 - 1718
1000 - 1000
500 - 562
250 - 313
100 - 156

 :headscratch: Why?
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Lusche on July 16, 2012, 12:40:16 PM
:headscratch: Why?

Because HT made it so. :)
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: SEraider on July 16, 2012, 12:44:46 PM
The main difference is that 2 1000lb have simply more destructive power than a single 2000lb bomb.

bomb - actual damage value

4000 - 3125
2000 - 1718
1000 - 1000
500 - 562
250 - 313
100 - 156

Are the actual damage value concentrated at the core of the blast?  What about the difference in blast radius?
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: NatCigg on July 16, 2012, 12:48:03 PM
Because HT made it so. :)
two bombs can NOT be dropped on the same location in one pass. therefore, the blast radius would be larger with two bombs than one bomb.

Im not sure how large each bombs blast radius is or if damage fades from the blast center.  anybody know?
 
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Lusche on July 16, 2012, 12:48:46 PM
Are the actual damage value concentrated at the core of the blast?  What about the difference in blast radius?

Generally speaking, bigger bombs have a greater blast radius, but I can't give you exact values, as I have conducted only kinda superficial tests yet. I would need a better terrain for such test that those currently available.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Spikes on July 16, 2012, 01:22:20 PM
two bombs can NOT be dropped on the same location in one pass. therefore, the blast radius would be larger with two bombs than one bomb.

Im not sure how large each bombs blast radius is or if damage fades from the blast center.  anybody know?
 
How can they not be? Drop 1 bomb and nose down slightly to drop another.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Karnak on July 16, 2012, 01:31:53 PM
The main difference is that 2 1000lb have simply more destructive power than a single 2000lb bomb.

bomb - actual damage value

4000 - 3125
2000 - 1718
1000 - 1000
500 - 562
250 - 313
100 - 156

Per my recent tests:

PB1 rockets: 93.5
HVAR 5" rockets: 159.5
RP-3 60lb rockets: 187.5
500lb bomb: 562.5
250kg bomb: 618.7
1000lb bomb: 1000
500kg bomb: 1100
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: SEraider on July 16, 2012, 01:48:26 PM
two bombs can NOT be dropped on the same location in one pass. therefore, the blast radius would be larger with two bombs than one bomb.

Im not sure how large each bombs blast radius is or if damage fades from the blast center.  anybody know?
 

I would think (stressing think and not know) that 2 bombs dropped together cannot combine blast radiuses.  They can however have intersecting radius.  Think of it as the olympic circles intersecting each other.  Seems reasonable to me.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: SEseph on July 16, 2012, 02:51:56 PM
I would think (stressing think and not know) that 2 bombs dropped together cannot combine blast radiuses.  They can however have intersecting radius.  Think of it as the olympic circles intersecting each other.  Seems reasonable to me.

Blast radius IS larger the larger the bomb, but the damage is what Lusche says. That's the reason HTC says you need 3x1000lbs to destroy a hangar and not 2x1000lbs and 1x500lbs. 5 rockets will work, but the damage from 5 rockets is 780, or 218 more damage than a single 500lbs egg. The real number is somewhere between 2600-2700 ord damage needed to remove a hangar, at least from my testing.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Lusche on July 16, 2012, 03:01:51 PM
The real number is somewhere between 2600-2700 ord damage needed to remove a hangar, at least from my testing.

The real number for (almost) any object in any arena can simply be found by looking at the arena settings: Options->Arena Setup->Objects->Object Settings.

The number given is how many 1000lb bombs are necessary to destroy the object. So a VH has the value 2.7815 which translates into 2,781.5 lbs. That means it would take

3 x 1000lbs bombs (damage rating 1000 each) or
5 x 500lbs bombs (à DR 562 each) or
18 x 100lbs bombs (à DR 156 each)



Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: NatCigg on July 16, 2012, 05:00:34 PM
How can they not be? Drop 1 bomb and nose down slightly to drop another.
bombs do not drop from the same exact location because of the placement on the airplane.

therefore left/right must be compensated for not just the angle of attack.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: SEseph on July 16, 2012, 07:46:12 PM
The real number for (almost) any object in any arena can simply be found by looking at the arena settings: Options->Arena Setup->Objects->Object Settings.

The number given is how many 1000lb bombs are necessary to destroy the object. So a VH has the value 2.7815 which translates into 2,781.5 lbs. That means it would take

3 x 1000lbs bombs (damage rating 1000 each) or
5 x 500lbs bombs (à DR 562 each) or
18 x 100lbs bombs (à DR 156 each)





I knew I had seen the number somewhere, but couldn't remember where. On the website it only says 3x1000lbs. Rockets must be slightly more powerful than what I figured also because 5 will do it if you place them well.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Karnak on July 16, 2012, 08:05:31 PM
Here are my complete ordnance test results thus far:

210mm WGr21 rocket: 93.50lbs
PB1 rocket: 93.50lbs
4.5" M8 rocket: 125.00lbs
100lb bomb: 156.20lbs
HVAR 5" rocket: 159.50lbs
50kg bomb: 171.80lbs
RP-3 60lb rocket: 187.50lbs
250lb bomb: 312.50lbs
500lb bomb: 562.50lbs
250kg bomb: 618.70lbs
1000lb bomb: 1000.00lbs
500kg bomb: 1100.00lbs
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Lusche on July 16, 2012, 08:09:02 PM
Here are my complete ordnance test results thus far:



These are the values HT himself posted a few years ago for bombs, nothing has changed since then:

4,000 lb   20.000
2,000 lb   11.000
1,000 lb   6.400
500 lb   3.600
250 lb   2.000
100 lb   1.000
   
1,800 kg   21.780
1,000 kg   12.100
800 kg   9.240
500 kg   7.040
250 kg   3.960
100 kg   2.200
50 kg           1.100


The points given are used itnernally by the program, just assume 1000lbs=6400
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: USRanger on July 16, 2012, 08:29:57 PM
I would need a better terrain for such test that those currently available.

Hmmm.  Interesting.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: MK-84 on July 16, 2012, 08:33:40 PM
^ That is the damage done assuming a direct hit.

The post is about blast zones, which I consider splash damage, or diameter of effect.  How does bomb size affect radius of effectiveness? If and how does the damage decrease with distance from target, and how does the size of the bomb itself figure in.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: W7LPNRICK on July 16, 2012, 09:44:52 PM
IMO anecdotal input- I found it much easier to kill a tank with 1x500lb bomb on either side of the tank, than with a 1000lb indirect hit. The bidirectional concussion blast is probably greater than a single direction blast of double the force....?    :airplane:
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: SmokinLoon on July 16, 2012, 09:52:23 PM
As far as the differences in blast radius go, judge for yourselves:

Take up B29's using 1 of three configurations:  the 1k, 2k, and 4 k bombs.  For starters, simply make a pass over the main area of town (roughly 2 to 8 O'Clock), drop 2 1k bombs together and film it.  Watch the "spread" of the dual 1k bombs, then SINGLE 2k bombs, and then SINGLE 4k bombs.  I've seen the 4k bombs reach out and grab auto ack further than one would think.  

Remember this: you can drop all the 1k bombs you want and maybe have a "longer" blast radius due to the number of bombs being dropped, but the width of the blast radius is the *same*.  If a player wants massive damage in a single pass then larger bombs are the way to go.  Take notice how *wide* the damage is when a pass is made by the B29 using the 4k bombs.  They can be dropped further apart and get get just the same amount of devastation.  Remember as well that quantity does not mean "better" in terms of blast radius.  There is no substitute for mass.  This can be seen by dropping 1 each size of bomb on the city center, notice how far they all reach.  Two 1k bombs dropped .05 seconds apart do not equal a single 2k bomb.  Same goes for 2 500lb bombs vs a single 1k bomb.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Karnak on July 17, 2012, 02:30:45 AM

These are the values HT himself posted a few years ago for bombs, nothing has changed since then:

4,000 lb   20.000
2,000 lb   11.000
1,000 lb   6.400
500 lb   3.600
250 lb   2.000
100 lb   1.000
   
1,800 kg   21.780
1,000 kg   12.100
800 kg   9.240
500 kg   7.040
250 kg   3.960
100 kg   2.200
50 kg           1.100


The points given are used itnernally by the program, just assume 1000lbs=6400

Interesting.  Nonetheless the numbers I posted do seem to be consistently the number needed to kill a hanger using the object settings. A 500lb bomb will never kill a hangar set to take 562.6lbs and will always kill one set to take 562.5lbs.
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Lusche on July 17, 2012, 05:40:09 AM
Interesting.  Nonetheless the numbers I posted do seem to be consistently the number needed to kill a hanger using the object settings. A 500lb bomb will never kill a hangar set to take 562.6lbs and will always kill one set to take 562.5lbs.

Not surprising as 3600/6400 = 0,5625  ;)
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: icepac on July 17, 2012, 08:41:44 AM
There has to be some sort of timing going on that we also need to understand.

There are endless possibilities as to how a sim deals with multiple bombs dropped in short succession.

Does aces high count damage to an object two bombs that hit within a few feet and within 1/10 of a second as a single larger explosion?

Are they treated as separate events that have no relation to each other?

Is there some sort of time threshold?
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: RTHolmes on July 17, 2012, 09:20:46 AM
similar discussion with some testing of the blast radius of the AH 1000lber here:

http://bbs.hitechcreations.com/smf/index.php/topic,294995.0.html (http://bbs.hitechcreations.com/smf/index.php/topic,294995.0.html)

:)
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: SEraider on July 17, 2012, 11:47:05 AM
^ That is the damage done assuming a direct hit.

The post is about blast zones, which I consider splash damage, or diameter of effect.  How does bomb size affect radius of effectiveness? If and how does the damage decrease with distance from target, and how does the size of the bomb itself figure in.

Yes, thank you.  My argument has to do that a 2k bomb has a larger blast radius than 2 - 1,000lbs bomb.  Some dissagree with that and I was looking for clarification from the tech guys of AH.  I think the 2 bombs would have a larger concentration of damage in the core of the blast with the radius not extending out as far as the 2k bomb.

similar discussion with some testing of the blast radius of the AH 1000lber here:

http://bbs.hitechcreations.com/smf/index.php/topic,294995.0.html (http://bbs.hitechcreations.com/smf/index.php/topic,294995.0.html)

:)

TS15pin presents in this thread a formula to calculate the radius of a blast.  As I read on, it seems that this formula was not formally validated.   
Title: Re: Blast zones from a single bomb or multiple salvo'd bombs
Post by: Mister Fork on July 17, 2012, 12:20:02 PM
A single 2000lb Mark 84 iron bomb will cause a bomb crater of 50ft (15.2m) wide 36ft (11.0m) deep.
A single 1000lb Mark 83 iron bomb will cause a bomb crater of 44ft (13.7m) wide and (5.5m) deep.

A 2000lb has 1035lbs of fragmentation and 945lbs of explosives.
A 1000lb has 555lbs of fragmentation and 445lbs of explosives.

Dropping two 1000lb bombs delivers the same fragmentation as a 2000lber but slightly less explosive impact.

The blast radius of two 1000lbs at the same time is less than a 2000, unless you stagger the release of the 1000lbs.

In Aces High, the same principle applies. As shown by the guys and the damage #'s, two 1000lbsers is 12800 and a single 2000lber is 11000. Makes sense to me.  Staggering your release on a larger targert will ensure a larger blast radius - and it would depend on what I was hitting. If it was a tank, I'd stagger my drop. If it was a hangar, I wouldn't stagger it.