Warhead data

[ArmySGT.]

I have a plan to add many other man portable anti armor weapon systems.

For the life of me I can't figure out what formula they came up with to figure armor penetration and e-factor.

The LAW and the RPG-7 seem equivalent until you get to damage. The stats for an RPG-7 are twice as effect as a LAW except both are class D anti-armor weapons.

Need more Soviet Bloc weapons to for survivors of air landed forces and troops from Cuba.

Anyway. Anyone know what the formula was for a rockets stats?

[nuke11]

I came up with a formula that works. I compared it to the one that Kevin developed and it is bang on.

Explosive DPW Formula
((Explosive weight in kg / 0.563) x 1300) x RE

RE (Relative Effectiveness) Values for Explosive Fillers

PETN: 1.25
RDX: 1.22
Nitroglycerin: 1.12
Composition B: 1.01
Composition A4: 1.01
Composition C4: 1.00
Torpex: 0.94
Tetryl: 0.94
Tetrytol 75/25: 0.90
Amatol 80/20: 0.88
Pentolite: 0.88
Tritonal: 0.83
TNT: 0.75
Explosive D: 0.74
Picric Acid: 0.70
M1 Dynamite: 0.69
Guncotton: 0.69
Dynamite (60%): 0.62
Nitrostarch: 0.60
Gelignite (60%): 0.57
Dynamite (40%): 0.49
Black Powder: 0.41
Mercury Fulminate: 0.38
Ammonium Nitrate: 0.31
Gelignite (40%): 0.31
Lead Azide: 0.29

To convert real world explosive RE values, times it by 0.75 to come up with
The Morrow Project ones.

[ArmySGT.]

From page 38 3d edition.

The only case in which the E-factor formula is not used is in the case of armor penetrating (shape charged) explosive warheads. In the case of these weapons the E-factor is found by determining how much armor the weapon penetrates. The Armor class of the weapons penetration is taken as that weapons E- factor.

Armor Class

Armor Material Cm of Cm of Cm of Cm of
Class Steel Wood Concrete Stone
A Skin - - - -
B Cloth (Heavy) - - - -
C Leather - - - -
1 13mm light - 2.54 .03 -
Plastic
2 13mm Heavy - 5.08 .5 -
Plastic

3 Chain Mail .25 7.62 .76 -
4 3mm Armor plate .34 10.16 1.06 7.62
5 .42 12.7 1.27 8.89
6 Nylon Body Armor .5 15.24 1.52 -
7 Resistweave Cloth .57 17.78 1.79 -
8 6mm Fiberglass .64 20.32 - -
Plate
9 6mm Aluminium .7 22.86 - -
Plate
10 .76 25.4 3.18 16.51
14 Kevlar Vest
15 1.02 34.29 7.62 22.86
16 19mm Lexan - - - -
18 Fiberglass / - - - -
Titanium Plate
19 13mm Aluminium - - - -
20 1.27 55.88 15.24 36.83
21 3mm Boron Carb- - - - -
ide Ceramic
25 1.52 55.88 15.24 36.83
30 1.79 66.04 19.05 43.18
35 3mm Boron/carbon 2.03 78.74 22.86 49.53
Filament plate
40 - 88.9 29.21 55.88
42 2.29 - - -
45 - 99.06 34.29 60.96
48 2.54 - - -
50 - 109.22 39.37 66.04
55 - 121.92 45.72 71.12
60 - 129.54 50.8 76.2
65 3.18 - - -
82 3.81 - - -
90 4.06 190.5 91.44 106.68
100 4.45 - - -
120 5.08 - - -
160 6.35 - - -
200 7.62 - - -
150 8.89 - - -
300 10.16 - - -
350 11.43 - - -
400 12.7 - - -


Damn table stops at 400

[ArmySGT.]

Attachment 1445

Name M72A2 LAW
Cal. 66mm
E-Factor
Wt. (Empty) n/a
Min. Range 50m
Eff. Range 350m
Max. Range 1000m
Burst Radius 5m
Type of Fire Single shot disposable
Rate of Fire Single
Feed Device n/a
Feed Device Wt. n/a
Basic Load 1
Load Wt. 2.37 kg
Total Wt.
Additional Comments: A lightweight, disposable, rocket launcher firing a high explosive warhead. The warheads will penetrate 28 centimeters of steel. The “back blast” from the weapon prevents it from being fired from inside a room smaller than 5x5 meters.

Found in Load out: #1, 9,


Attachment 1594

Attachment 1595



RPD-7D Anti-Tank Launcher
E-Factor: 1030
Weight (Empty): 6.8kg
Minimum Range: 30m
Effective Range: 300m
Max. Range: 920m
Type of Fire: Single Shot
Burst Radius: 5m
Round Weight: 2.3kg
Anti-Armor Class: D
Basic Load: 2 rounds

Additional Comments: The RPD-7D is the standard anti-tank launcher of
the Warsaw Pact Forces, although it was beingsuperseded by newer designs like the RPD and RPG-18 by the time the War broke out. The basic design is quite simple and effective, though the round can be pushed off-target by strong crosswinds. This particular version can be disassembled into two parts to shorten the launch tube for the convenience of paratroops.

The RPG-7V is a recoilless, shoulder-fired, muzzle-loaded, reloadable, antitank grenade launcher. It fires a variety of rocket-assisted grenades
from a 40-mm smoothbore launcher tube. It is the standard squad antitank weapon in use by the OPFOR. The RPG-7V is light enough to be
carried and fired by one person. However, an assistant grenadier normally deploys to the left of the gunner to protect him from small arms fire.
The RPG-7V requires a well-trained gunner to estimate ranges and lead distances for moving targets. Crosswinds as low as 7 miles per hour can
complicate the gunner's estimate and reduce first-round hit probability to 50% at ranges beyond 180 meters.

Attachment 1596

Attachment 1597

Attachment 1598

Attachment 1599

[ArmySGT.]

Breaching Charges
Thickness of concrete C-4 Needed Wt # of 112 Blocks
.5m or less 3.5 kg 6
.6m 4.8kg 8 Kg of C4 / RE = Weight of explosive substitute
0.8m 9.2kg 17
0.9m 13.2kg 24
1.1m 21kg 38
1.2m 31.5kg 56
1.4m 44.7kg 80
1.5m 48.1kg 86

Relative Effectiveness
Explosive RE
PETN (primercord) 1.24
Nitroglycerine 1.12
C-4 or C-3 1
Picric Acid 0.7
Guncotton 0.69
Dynamite (60%) 0.62
Tetryl 0.93
Amatol 0.87
RDX 0.85
TNT 0.75
Nitostarch 0.6
Dynamite (40%) 0.49
Black Powder 0.41
Ammonium Nitrate 0.31

Explosive Damage Points
Explosive Dpw
M112 C-4 1300
M183 Demolition Charge 20,800
Mk3A2 Grenade 295
M26A1 Grenade 232
Primer cord 10 per M
Blasting Cap 1
M72A2 LAW 533
Armbrust 300 533
M381 HE 40MM 100
M433 HEDP 40mm 120
M25 AP Mine 20
M16A1 AP Mine 888
M56A1 HE 20mm 40
M374A2 HE 81mm 1,240
2.75 in Rocket 2,600
M47 Dragon 3,120
M151E2 TOW 3,120
Stinger 2,900
Chapparal 13,260
Maverick 76,700
M19 AT Mine 20,355
M18A1 Claymore 1,460

[ArmySGT.]

There's the two light Anti Armor weapons.

Thanks Nuke11 by the way.

As you can see the Writers worked up the E-factor for the RPG-7 for "Final Watch".

Anybody know by what formula as the normal one would not apply for a shape charged weapon.

Next any Idea how they came up with the DPW for the manufactured weapons like the LAW. Its not like the manufacturer was handing out the recipe.

Thanks in advance!