Ballistics information and software for the amateur naval historian interested
in the late 19^{th} and early 20^{th}
centuries.

The purpose of this site is to provide ballistics information and software
focussed on the naval history of the late 19^{th} and early 20^{th} centuries. My
ultimate goal is to develop a complete toolkit of internal, external and terminal
ballistics software and to provide the supporting information needed to make
effective use of it.

Because it has a naval history emphasis, the site will focus predominantly
on contemporary (late 19^{th}/early 20^{th} century) methods in order to highlight
the state of knowledge available at the time. More modern methods will be covered
only insofar as (a) enough information is publicly available to model them and
(b) they throw some additional light on contemporary methods (e.g. they highlight
their limits or clarify how they must have been used or adapted).

At present I know it's going to be feasible to deliver the following (I've already got working prototypes):

**Internal ballistics**

- The analytical method of solution developed by Colonels Hunt and Hinds (1940s)

**External ballistics**

- The Siacci analytical method of solution (c.1880s-1910s)
- Numerical integration solutions using the drag models developed by Maievski, Ingalls, the Gavrês Commission and the British 1909 Commission (c.1880s-1940s)
- Point-mass numerical integration using standard reference projectiles (c.1930s-1940s)
- Point-mass numerical integration using Robert L. McCoy's McDrag algorithm (c.1950s-1960s)

This represents just about total planned coverage of external ballistics. I have no plans to attempt to develop Modified Point-Mass models, and I don't believe sufficient data is available on early projectiles - or ever will be - to justify contemplating 6-Degrees-Of-Freedom models.

**Terminal ballistics**

- Armour penetration solutions using Nathan Okun's empirical Facehard and M79 algorithms, obviously subject to Nathan's approval

In addition, I think it will probably be feasible to deliver armour penetration
solutions using the Tressider, de Marre and related late 19^{th}
century formulae. If possible I'd also like to include the following, but I
haven't done any detailed investigation yet to see how practical it might be:

**Internal ballistics**

- Finite difference model (this will probably represent the limits of coverage of internal ballistics)

**Terminal ballistics**

- Modelling of blast and fragment effects using Nathan Okun's analyses and official documents. This will probably represent the limits of coverage of terminal ballistics.

I'll be following an iterative development process and will release versions of the program whenever I complete a distinct step. The first few versions will simply be building infrastructure (for example, the first step will be to build a unit conversion system).

(c) Mike Dean 2003.If you have any feedback, comments, questions, etc., please contact me at the address below.