FACEHARD (Python port) — attribution and copyright notice
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This package is an independent Python port of FACEHARD 8.0, a face-hardened
naval-armour penetration program written by Nathan Okun in QuickBASIC.

Underlying mechanics and original flow — Copyright (c) the estate of Nathan Okun
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The empirical penetration mechanics and related intellectual property — including
the formulas, algorithms, ballistic-limit and post-impact decision logic,
historical projectile/armour data tables, and the original FACEHARD program's
flow, interaction process, and results/definition text — belong to the estate
of Nathan Okun. Okun's material is published on NavWeaps under these terms:

    "All material in this section of NavWeaps is copyrighted by the estate of
     Nathan Okun and may not be used for commercial purposes without prior
     written permission."
    — http://www.navweaps.com/index_nathan/index_nathan.php

This port reproduces that material (including Okun's own source-code comments,
restored from the original FH80MAIN/FH80SBM1/FH80SBM2.BAS modules) for study and
convenience. It makes NO claim of authorship over the mechanics, original flow,
data, or text, and does not grant any rights in them beyond what the estate's
terms allow.

Python implementation and additions — Copyright (c) 2026 Adrian Beale
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The Python-specific implementation and original additions — including the
Python code, packaging, command-line interface, and additional features — are
owned by Adrian Beale and licensed under the PolyForm Noncommercial License
1.0.0 (see LICENSE). To keep the whole work consistent with the estate's terms,
the port as a whole is offered for NONCOMMERCIAL use only.

Commercial use of the underlying mechanics or original flow requires prior
written permission from the estate of Nathan Okun. Commercial use of the
Python implementation or additions requires permission from Adrian Beale. A
use of this combined distribution may require permission from both rights
holders.

This is not legal advice. If you intend to redistribute or use this
commercially, confirm the terms with the rights holders first.
