4.13 development update discussion and feedback

[Pursuivant]

Useful information on fires and fire suppression systems in aircraft:

http://www.nist.gov/el/fire_research.../Chapter-2.pdf

Mostly applicable to post-WW2 aircraft, but some discussion of WW2 era technology, and plenty of explanation and diagrams on where and how fires start on aircraft. The section on ballistically-induced fires is most relevant to the game.