Bomb crater size

[[DBS]Browning]

 

The craters in game are currently far too large, especially for the larger bombs.

Aside from being inaccurate, this also causes players confusion when objects are undamaged, despite being inside the crater.

This document suggests that a good rule of thumb for crater size is D[m]=0.8W[Kg TNT]^1/3 (+/- 30%). The variation accounts for soil type and conditions.

 

That would suggest diameter values of:

2500kg             9m - 16m (contact fuse) 11m - 21m (delay fuse) average 14m Ingame value ~120m

2000kg             8m - 15m (contact fuse) 11m - 20m (delay fuse) average 13m Ingame value ~120m

1800kg             8m - 15m (contact fuse) 10m - 19m (delay fuse) average 13m Ingame value ~120m

1000kg            6m - 12m (contact fuse) 8m - 16m (delay fuse) average 11m    Ingame value ~120m (7.5-20 times too big!)

500kg              5m - 10m (contact fuse) 7m - 12m (delay fuse) average 8m     Ingame value ~50m

454 (500lb)kg 5m - 9m (contact fuse) 6m - 12m (delay fuse) average 8m 

250kg              4m - 8m (contact fuse) 5m - 10m (delay fuse) average 7m      Ingame value ~40m

227 (250lb)     4m - 7m (contact fuse) 5m - 10m (delay fuse) average 7m  

200kg             4m - 7m (contact fuse) 5m - 9m (delay fuse) average 7m   

100kg              3m - 6m (contact fuse) 4m - 7m (delay fuse) average 6m       Ingame value ~15m

50kg                2m - 5m (contact fuse) 3m - 6m (delay fuse) average 4m      Ingame value ~10m

Edited May 10, 2021 by [DBS]Browning

[Barnacles]

An SC1800 detonated between the buildings shown here. As you can see they're largely intact. 

[[DBS]Browning]

Given that there have recently been bomb effect changes, I thought a bump here might be in order.

[Charon]

Similar sizes from FM 1-10, Air Corps Field Manual for Tactics and Technique of air Attack, FM 1-10, 20-Nov-1940

[Charon]

The Selection of Bombs and Fuses for Air Attack (TR) is another source confirming these crater sizes. See page 90.

 

https://www.afhra.af.mil/Portals/16/documents/Studies/151-200/AFD-090521-080.pdf

[jollyjack]

Well, that infamous IL2 blob on top of the ground instead of a proper hole in the ground is something i'd like to see some day ... seems we're stuck with it as for now.