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U.S. Army 1944 Firing Test No.3

U.S. Army Firing Tests conducted August 1944 by 12th U.S. Army Group at Isigny, France. Board of Officers APO 655 30 August 1944 SUBJECT: Final report of board of officers appointed to determine comparative effectiveness of ammunition of 76mm gun

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U.S. Army 1944 Firing Test No.2

Firing Tests conducted 12-30 July 1944 by 1st U.S. Army in Normandy. REPORT OF PROCEEDINGS OF BOARD OF OFFICERS Organization: Headquarters, First U.S. Army. Place: APO 230, U.S. Army. Proceddings of a board of officers which convened at Headquarters, First

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U.S. Army 1944 Firing Test No.1

Report on Comparative Firing Program Witnessed at Shoeburyness, Essex, 23 May 1944 by U.S. Army Headquarters ETO representatives. ARMORED FIGHTING VEHICLES & WEAPONS SECTION APO 887 319.1 – 24 May 1944 MEMORANDUM TO: Executive Officer, AFV&W Section, Hq., ETOUSA. SUBJECT:

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Effectiveness of British (& U.S.) Tank Guns

Effectiveness of Guns and typical AFV Ammo Loads in British Service (including some U.S. Types). This is a 1944 British War Office Document.

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Determining Shot Penetration Characteristics

The penetration of AP (Armour Piercing) Shot is determined primarily by its weight and velocity at the moment of impact. Other factors can influence it’s velocity (such as wind, pressure and atmospherics), or its ability to “bite” into the armour

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Table of Compound Angles of Impact

The Angle of Impact on Armour Plate with the Angle of Attack in the Horizontal Plane Formula: Cosine (Compound Angle) = Cosine (Vertical Angle) x Cosine (Horizontal Angle) This information above was supplied to me by Jim O’Neil (Arizona, USA),

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Effect of Hardness upon resistance to Penetration

An increase in the hardness of a given thickness of homogeneous armour may result in an increase or in a decrease or in no change at all in resistance to penetration, depending upon the ratio of the thickness of the

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