How is hit damage and indirect hit radius calculated?

[Lord_Cool 1]

I am having some trouble deciphering exactly how 'Hit', 'indirectHit', and 'indirectHitRange' are calculated in ARMA 2. Ideally I want to have weapons where the blast radius and damage are scaled to real life and not arbitrarily increased or reduced for 'balancing' purposes.

For instance I edited the config.bin/config.cpp and created a bomb with a TNT equivalent of 3.7 tons, which I calculated to have a damage radius of 114m (down to ~2psi overpressure). However when testing, the destructive effects of the blast went out to something like 4 times further than this, with damage still being done over 450m away! This is the sort of destructive power I would expect from ~ 230 tons TNT equivelent. This does not make sense with regard to description given in CfgAmmo reference of "Radius in metres where indirectHit damage is caused". I have tried looking at the ammo in the config.bin, however many of the values just seem arbitrary, like the FAB-250 (97.5kg filling) has been given 12m blast radius, while the 122mm Arty Shell (3.675kg filling) has been given 30m!?

Also, for high explosive warheads, exactly how do the damage points scale with joules/TNT equivalent?

Edited March 18, 2013 by Lord_Cool

[j0nes 194]

http://community.bistudio.com/wiki/Weapons_settings

this can explain much better than I can :)

[sander 14]

Something to take into account is that the indirect damage and indirect damage radius settings are not necessarily related to just the blast effects, but are also used to model the shrapnell effects of munitions. It is simplified in the default damage model. Differences may also be partially explained away by the supposed detonator settings for munitions (eg impact detonation vs airburst).

Regards,

Sander