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All Forums >> [Current Games From Matrix.] >> [World War II] >> Steel Panthers World At War & Mega Campaigns >>

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- 7/12/2001 12:11:00 AM

Larry Holt

Posts: 1969
Joined: 3/31/2000
From: Atlanta, GA 30068
Status: offline

Paul, Since you are informing us of formulas can you update us on the aror penetration is used to be something like armor*(sqrt (1/cos(h_angle*pi()/180^2.8)+... and how about the normalization to 0 angle and slope? There is so much under the hood that tantalizes us.

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(in reply to Larry Holt)

Post #: 31

- 7/12/2001 12:13:00 AM

Larry Holt

Posts: 1969
Joined: 3/31/2000
From: Atlanta, GA 30068
Status: offline

quote:

Originally posted by Chris Trog: The 81mm Mortars seen on the TO&E's of many nations at the start of WWII were in most cases a [snip as a libation to the bandwidth gods] [ July 10, 2001: Message edited by: Chris Trog ]

Excellent post!! Can you give me some sources as I need to learn more about WWII mortars hardware and tactics.

_____________________________

Never take counsel of your fears.

(in reply to Larry Holt)

Post #: 32

- 7/12/2001 1:10:00 AM

Paul Vebber

Posts: 11430
Joined: 3/29/2000
From: Portsmouth RI
Status: offline

I've adjusted some of the formulas and they are not easily typed in given the limits of the forum. THere are two ways to figure "compound angle" he vertical angle is the same in both, in the "LOS" method you take 1/(cos(V)*cos(h)) That gives teh LOS distance through the armor. Now if you rotate teh plate not about the vertical axis, but the axis through the plate, you get the funky SQRT(1/cos^2(v)+1/cos^2(h)-1) formula. For teh methodolgy I use (changing those ^2 to other powers as a function of T/D (thickness to diameter ratio) I get better agreement with published "slope modifiers" than with the "true LOS" value. The path a shell actually takes through the armor is not a straight line path, but a curved, sometimes S shaped path so the "full LOS" thickness using the proceedure I came up with tends to overestimate "effective thickness" so I stayed with the "funky" one. For Combat Leader A totally new proceedure will be used, derived from the data in Lorrin Bird and Robert livingston's book on WW2 Ballistics. Sincle CL will deal with Modern too there will be some differences from the methodolgy there in some cases. IF you want to understand the complexities of the whole penetration process, there is no better reference!!

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(in reply to Larry Holt)

Post #: 33