Confused about weapons data

[AMVI_Rider]

I was investigating the db_weapons_data.lua file to check some details when I stopped in front of the definition of LAU-68/131 in TER (any kind of rocket):

 

CLSID = "LAU_131x3_HYDRA_70_M151",

...

displayName = _("LAU-131*3 - 7 2.75' rockets M151 (HE)"),

...

Count = 21,

Weight = 702,

...

 

I found it to be too heavy compared to its single launcher configuration:

 

CLSID = "{69926055-0DA8-4530-9F2F-C86B157EA9F6}",

...

displayName = _("LAU-131 - 7 2.75' rockets M151 (HE)"),

...

Weight = 100,

 

Then I did some research for the real data:

 

LAU-131 fully loaded with M151: 223 lbs (101 kg)

LAU-131 empty: 68lbs (31 kg)

M151: 23 lbs (10 kg)

 

... but I wasn't able to find the BRU-42LS specs then I took it from DCS:

 

BRU-42LS: 143 lbs (65kg)

 

The math:

 

LAU-131 = 68 + 23 *7 = 229 lbs (104 kg)

LAU-131*3 = 229 * 3 + 143 = 830 lbs (376 kg)

 

The first one is confirming DCS data for the single launcher configuration while the second one, as expected, is quite different.

Am I missing something?

 

 

Later on I also found dubious drag figures for some weapons i.e. :

 

- LAU-105 with and without AIM-9:

The empty drag is greater than the 2 missile configuration that it's (properly) greater than the 1 missile configuration.

 

- {BRU-42_3*Mk-82AIR} vs {60CC734F-0AFA-4E2E-82B8-93B941AB11CF}:

Mk-82AIR drag is 1/5th of Mk-82

 

In the respect of drag It's hard to find real world data with the exception of this:

http://www.dsto.defence.gov.au/publications/1988/DSTO-TR-0545.pdf

Edited May 3, 2014 by AMVI_Rider
typos