Artillery Firing Calculator, USSR, 1944 Northrop With 11 sections plus appendix

With 11 sections plus appendix and index

The wheel at the left of the digit display counter is used to set the total rounds loaded into the aircraft

Manifold Pressure

This is a 1950's-era Attitude Gyro Horizon Indicator as used in the US Navy/Marine Corps Fighter Jet Grumman F9F-5 Cougar and the HUP-1

California) dated Nov 19

Artillery Firing Calculator, USSR, 1944 Northrop With 11 sections plus appendixTrue, this is not aviation in nature, but it is an exceptional artifact from WWII. This is an original Soviet Army Artillery Firing Calculator, used in determining proper elevation and deflection (direction) when operating field artillery weapons. It was carried in the map document case worn by a Soviet artillery officer. The calculator contains diagrams and a graph, with rotating wheels and tabs, and made of material which permits writing in