This time the Brit Plotter Mk IV.
The pic embiggens.
And now for the Observed Fire Slide Rule, used for adjusting fires.
This pic embiggens as well.
Read the complete post at http://www.thedonovan.com/archives/2013/02/back_to_artille.html
Posted
Feb 21 2013, 08:20 AM
by
Argghhh! The Home Of Two Of Jonah's Military Guys..