Tachymetric Anti-Aircraft systems in WW2 #1 Post by iamartnez » Fri, May 16, 2014, 7:44 AM UTC Tachymetric Anti-Aircraft systems in WW2youtube.com
Re: Tachymetric Anti-Aircraft systems in WW2 #2 Post by iamartnez » Fri, May 16, 2014, 7:44 AM UTC More info:http://en.wikipedia.org/wiki/Kerrison_Predictorhttp://en.wikipedia.org/wiki/Tachymetric_anti-aircraft_fire_...