RARE World War II Training Manual Oldsmobile 20mm AN-M2 Gun Feed Mechanism M1

Description

RARE World War II Training Manual Oldsmobile 20mm AN-M2 Gun Feed Mechanism M1. It is a numbered edition with this book no. 1896. Great provenance as cover is signed Lt. James F Clare. There are more than 50 pages total. Fine vintage condition, complete and spiral bound with no loose pages - see my 8 photos. Clare served in the US Army during WW2.
The last pre-war Oldsmobile rolled off the assembly line on February 5, 1942. During World War II, Oldsmobile produced numerous kinds of material for the war effort, including large-caliber guns and shells. Production resumed on October 15, 1945 with a warmed-over 1942 model serving as the offering for 1946.
Lansing Oldsmobile built "Firepower" in the form of 125,527 cannons ranging in size from 20mm to 76mm, and 20,818,600 artillery shells ranging in size from 75mm up to 155mm.  Oldsmobile's two borrowed GM plants in Janesville, WI, and Kansas City produced another 24,919,390 shells ranging in size from 75mm to 105mm.  Total shells produced by all Olds operated plants was 45,737,190.
Oldsmobile World War Two Production Statistics for the Lansing, MI Home Plant
Cannons:  (125,527) total units
(77,010) 20mm M2 aircraft cannon built from 10-16-1941 to 1-31-1944
(2,779) 37mm M4 aircraft cannon built from 7-12-1942 to 6-16-1943.  This was a Colt design that Olds built under license.  The original contract was for the Olds to build 6,195 M4 cannon.  Colt built 8,667 M4 37.  This weapon was used in the Bell P-39 Airacobra.
(1,500) 37mm M4E3 anti-aircraft cannon,
(150) 37mm M1A2 anti-aircraft cannon
(2,930) 37mm M9 anti-aircraft cannon built from 5-23-1943 to 5-16-1944,
(5,129) 75mm M6/T13E1 cannon - The T13E1 was used in the B-25H, and the M6 was used in the M24 Chaffee tank
(21,894) 75mm M3 tank cannon built from 4-25-1942 to 2-4-1944
(14,135) 76mm M1A2 tank and tank destroyer cannon with production to 6-1-1945.  Olds also built the M7 3 inch cannon used in the M10 tank destroyer.  The weapons are similar in that 3 inches is equivalent to the 76.2mm the 76mm size the cannon M1A2 actually was.  The M7 production numbers are included in the 14,135 quantity built.
Shells:
(8,597,161) 75mm M48 HE  The 75 mm High Explosive round was preferred by US tank crews, as it was superior to the 76mm HE round.
(398,328) 75mm M66
(5,417,737) 105mm M1 HE
(316,362) 105mm M67
(3,740,678) 75mm M61 APO
(414,098) 75mm M62A1
(330,476) 75mm M72 AP Shot
(1,026,120) 3 inch MK29APO Shot for the M10 tank destroyer and M5 towed anti-tank gun
(521,490) 155 M101
(56,150) 75mm M61A1
Total amount of shells, projectiles and shot produced at the Lansing operation was 20,818,600 from 8-19-42 until 6-30-45.
Oldsmobile World War Two Production Statistics for the Lansing, MI Home Plant
Misc.:
(24,713) M2 Feeders
(1,680) 37mm M4E3 Magazines
(30,672) .50 Cal. Gun Tubes
(220,906) P&W Piston Rods
(27,050) 4.5 inch T22 Rockets
(231,198) 4.5 inch T38 Rockets  (These are also referenced as T22 in one source.  Both were 4.5 inch rockets.)
Propeller Spider Hub Forgings for unknown aircraft
Bomber Landing Gears Part Forgings
Forged Crankshafts for Vauxhall
Packard Rolls-Royce Merlin Aircraft Engine Crankshafts from 10-1944 to 6-1945
Packard Rolls-Royce Connecting Fork Rods from 10-1944 to 6-1945
Packard Rolls-Royce Rocker Arms from 10-1944 to 6-1945
Packard Rolls-Royce Cylinder Liners from 10-1944 to 6-1945
Oldsmobile World War Two Production Statistics for the Janesville, WI Plant
(4,088,757) 3in M62 APC Projectiles, (Armor Piercing Capped)  The shell had a ballistic cap over the firing cap to reduce drag
(270,000) 3in M79 AP Projectiles (Armor Piercing) for the M10 tank destroyer and M5 towed anti-tank gun
(558,358) 3in MK29 APC Shot (Armor Piercing Capped) for the M10 tank destroyer and M5 towed anti-tank gun
(196,315) M75 HE Shells,
(720,973) 90mm M82 APC Shells, (Armor Piercing Capped
(6,585,950) 105mm HE Shells, (High Explosive)
Oldsmobile borrowed both the Chevrolet and Fisher Body plants for WWII production.  Total amount of shells, projectiles and shot produced at the plant was 12,420,353 from 7-7-42 until 8-19-45.
Oldsmobile World War Two Production Statistics for the Kansas City, MO Plant
(3,198,255) 75mm M48 HE Shells,
(1,060,413) 75mm M66 Shells,
(182,498) 75mm T39 HEAT Shells, (High Explosive Anti-Tank)
(1,122,287) 3in M42A1 HE Shells for the M10 tank destroyer and M5 towed anti-tank gun
(1,980,994) 90mm M71HE Shells,
(3,149,516) 105mm M67 HEAT Shells (High Explosive Anti-Tank)
(1,805,274) 105mm M1 HE Shells
(36,860) 81mm T19 Mortar Shell
Oldsmobile borrowed this plant for the war from the Fisher Body Div. of GMC.  Total amount of shells, projectiles and shot produced at the plant was 12,499,237 from 8-19-42 until 6-30-45.The
The total amount of shells, projectiles and shot produced at all Oldsmobile operations during WWII was 45,338,190.
The Oldsmobile built M7 3-inch cannon was used on Fisher Body built M10 and Ford built M10A tank destroyers, like this Fisher M10 at the Patton Museum at Fort Knox, KY.  Olds also manufactured 1,026,120 shells in Lansing for the weapon.  Olds Janesville, WI produced 4,917,115 shells and shot for the 3-inch gun.  The Kansas City Olds Plant produced another 1,122,287 shells for it.