Nov. 12, 2018
There was a bug in NAAB that didn't re-initialize the shell factors after the first run. Fixed. Also, added a selection to display penetration in mm. This changed the Armor and Gunnery analysis page.
Nov. 8, 2018
I added examples of WWII Russian tank guns. Also I modified NAAB to change shell quality in case users on't agree with the default values.
Nov. 6, 2018
The Armor and Gunnery at the Copyright office appears to be real. It is different than either o my copies and I can't explain why. I added another page for it.
Nov. 5, 2018
There was a bug in applying the drag coefficient in NaaB. That has been fixed.
Also, noticed that both the Wikipedia and War Thunder is now posting penetration numbers for the 100mm BR-412/BR-412B and 122mm BR-471/BR-471 which are way out of the norm. They say that the numbers represent US penetration standards. But, I have never found US firing tables for these guns. None that are from testing. Several people have made them from calculations but they aren't true tested values.
War ThunderWiki 122mm
Sept. 23, 2018
Rifle ballistics. I'm taking on rifle ballistics for the German K98k and Russian Mosin-Nagant.
While this has little practical application for Panzer War as the table gets fiddlely at that scale it does work for Panzer Command. As the bullets are used in the light squad machineguns this works for them as well.
Sept. 3, 2018
Calculations on optics of sights. Why did the British evaluation of light transmission of German TF-5b sight so much less than their evaluation of the Russian TMFD sight?
June 17, 2018
Wiki is wrong. OK, yeah it often is. But US 76mm M1, M1A1, and M1A1C had 40:1 rifling twist. Only the M1A2 had the 32:1 twist. 3" M5 and M7 also retained the 40:1 twist.
Updated the bomb table of NAAB2.1 with modern bomb GBU-39.
May 26, 2018
The NAAB2.1 program is changed slightly again. I received an note from Nathan Okun saying that the elongation scaling should be limited to 18". So this has been done. There was another change made as HCWCLCR is updated to HCWCLCR5. Download NAAB 2.1 with bombing here.
May 10, 2018
The NAAB2.1 program is changed slightly. The diameter scaling is cut off at 20" right now. One other idea may