Ordnance, Gunnery and Fire Control

Fire Control Fundamentals, NAVPERS 91900, 1953, is an introduction to mechanical computing gun fire control. The basic fire control principles of gun against a surface target are then applied to the control of Anti-aircraft guns, Antisubmarine Weapons, Torpedoes, Rockets and Guided Missiles.Principles of Guided Missiles and Nuclear Weapons, 1959. This was created to introduce ROTC officers to these weapons and their effects.Gun Mount And Turret Catalog, Ordnance Pamphlet 1112, 1945, is a Navy catalog of Gun Mounts and Turrets that includes almost all the U.S. Navy WW II equipment.U.S. Explosive Ordnance, Ordnance Pamphlet 1664, 1947, describes and illustrates United States Navy projectiles, Army and Navy rockets, pyrotechnics, grenades, land mines, bombs, and guided missiles.Ships Chemical Smoke Munitions, Description and Instructions For Use, OP 1042, 1944, describes chemical smoke systems for creating smoke screens.

B.R. 932, Handbook on Ammunition, 1945. British Navy ammunition from WW IIbr932.pdf (21 MB PDF)

U.S. Navy Projectiles and Fuzes, 1945, is a catalog of U.S.N. projectiles and fuzes. This document was removed from the web site in Mar 2010 at the request of the USN, NAVSEA Washington, DC for classification review. If you are an EOD technician and need ordnance data, the US military Joint Explosive Ordnance Disposal Technical Support Center, EODTSC@navy.mil supports EOD operations worldwide 24/7.

British Bombs and Fuzes, 1944, is a catalog of British, bombs, fuzes, rockets, demolition charges, etc. from WW II. This document was removed from the web site in Mar 2010 at the request of the USN for classification review.

Mine Identification Manual, O.P. 898, 1943, is a catalog of U.S. mines from WW II.

Operational Characteristics of U.S. Naval Mines (U), ORD 696(B), 1959, shows the basics of underwater offensive mines.

Mine Disposal Handbook, 1945, was created by the U.S. Navy Bomb Disposal School near the end of WW II. It covers all forms of underwater ordnance, not just mines.

Surface Pyrotechnics and Projectors, Ordnance Pamphlet 1177, 1945, describes modified fireworks used by surface ships, submarines and merchant ships. These are used for used for signaling, marking, or illuminating objects.

Missile Launchers and Related Equipment Catalog, Ordnance Pamphlet 1855, 1953, is a U.S. Navy catalog of missile launchers, rocket launchers, depth charge projectors, and related equipment.

Index of Ordnance Publications, OP 0. 1953, This lists all the Ordnance Pamphlets (OP), Ordnance Data, (NAVORD ODs), Ordnance Technical Instructions (NAVORD OTIs), Ordnance Handling Instructions (NAVORD OHIs), Aviation Ordnance Modification Instructions (NAVORD OMIs), NAVORD Charts (Not Issued to Fleet Activities) and War Dept. Publications (Stocked at NAVGUN). This is the place to find out what manuals you are missing.
Alternative 1946 version with low quality images in PDF, OP0.pdf (18 MB PDF)

Description of Range Keeper, Mark II with Directions for its Care and Manipulation, 1908, and Specifications for the Manufacture of Range Keepers, Mark II, U.S. Navy, 1907. These describe the Vickers Range Clock as used by the US Navy. This was a key element of HMS Dreadnought era fire control that continued in use through WW II.

B.R. 1534, Handbook on Minor Fire Control Instruments, 1946, describes the Vickers Range Clock, Dumaresq, Coventry Range Clock, Portable Fire Control Tray, Range Transmitter and Spotting Box, Deflection Transmitter and Spotting Box. Some of these classic British instruments were kept in use over 50 years.

The Gunnery Pocket Book, B.R. 224/45, 1945. This manual represents the peak of British WW II gunnery. Examples included are taken from the six-inch cruiser of theMauritius class, a Dido class cruiser, and a typical destroyer.

B.R. 901/43, Handbook of The Admiralty Fire Control Clock Mark I and I*, 1943, describes the smaller of the two main gun fire control instruments of the Royal Navy in WW II.

B.R. 901/43, Handbook On The Use Of Radar For Gunnery Purposes Visual/Radar Target Indication, 1945, describes the radar target designation system of the Royal Navy in WW II.

B.R. 257, Handbook for the 4 Inch Q.F. Mark XVI* Gun on the H.A. Twin Mark XIX and Single Mark XX Mountings, 1941. br257.pdf (11.6 MB PDF)

O.U. 6359A, Handbook for 6-Inch, B.L., Mark XXIII Guns on Triple, Mark XXII Mounting, 1937. ou6359a.pdf (8.6 MB PDF)

B.R. 1919, Handbook for 40mm Bofors Twin R.P. 50 Mark 5 Mounting, 19450.br1919.pdf (14 MB PDF)

20 MM Antiaircraft Gun, OP 911, 1943, is a Navy service manual for the anti-aircraft gun of choice during the early years of WW II.

20 MM Antiaircraft Gun Mount, OP 909, 1943, is a Navy service manual for the 20 mm gun mounts used aboard ships during during the early years of WW II.

Twin 20-mm Antiaircraft Assemblies, OP 1439, 1945, is a Navy service manual for the twin mount version of the classic WW II anti-aircraft gun on the tripod style mount.

40 MM Antiaircraft Gun, OP 820, 1943. The maintenance manual for the dual Bofors 40mm gun. This was the most widely used anti-aircraft gun of WW II.

40 MM Mount Mk 4, OP 1329, 1947 describes the very widely used quad mount for the Bofors 40mm gun of WW II.

40 MM Antiaircraft Gun, TM 9-1252, 1951, is an Army service manual for this widely used single Bofors 40mm anti-aircraft gun of WW II.

40-mm Automatic Gun M1 (AA), TM 9-252, 1944, is an Army service manual for this widely used single Bofors 40mm anti-aircraft gun of WW II.

3-inch Mount Mark 20, 21, 22 and Mods, OP 811, 1943, describes the three inch, 50 caliber gun of WW II and its revisions.

8-Inch 3-Gun Turrets Main Armament For USS Salem Class, Turret Description And Operation, 1947. Describes in detail the first post-WW II gun turret and last big gun turret created by the US U.S. Navy.

VT Fuzes For Projectiles and Spin-Stabilized Rockets, OP 1480, 1946, is a manual for the U.S. proximity fuzes of WW II.

Basic Fire Control Mechanisms, OP 1140, 1944, describes the mechanical computing elements used in U.S. Navy fire control systems. These components are the building blocks of some of the most successful analog mechanical computers ever built. (in PDF)

Basic Fire Control Mechanisms Maintenance, OP 1140a, 1946, has maintenance procedures for the mechanical computing elements used in U.S. Navy fire control systems. (in PDF)

Standard Fire Control Symbols, OP 1700, 1950, and 1957 established a set of standard fire control symbols to be used in various U.S. Navy fire control systems.

Computer Mark 1 and Mods (with Computer Mark 1A Addendum), Ordnance Pamphlet 1064, 1945 (1951 Addendum), describes the fire control computer used on guns from 5″ to 16″ aboard US Navy ships of WW II.

Computer Mark 1 and Mods. Maintenance Volume 1, Ordnance Pamphlet 1064A, 1947, is the first half of the maintenance manual for the Mark 1 computer.

Stable Element Mark 6 Ordnance Pamphlet 1063, 1944, describes the stable element that determines the pitch and roll of the ship and supplies this to the fire control computer.

Rangefinders Marks 58; 58, Mod. I; 65; and 65, Mod. I , O.P. 1171, describes the optical rangefinder used in Gun Director Mark 50 and in many smaller surface combatants of WW II.

Fire Control Radar, Mark 8, Operation, O.P. 658, 1943, op658.pdf (775 KB PDF)

Index Of Assemblies For U. S. Navy Mounts And Turrets, OP 60, 1944, is a series of tables documenting the standard guns, mounts and turrets of WW II.

Painting Of Naval Ordnance Equipment, NAVORD OSTD 52, 1955, describes the standards for painting of ordnance, choice of coating, etc.

Specification For Paints On Exteriors of Projectiles Purchased By The Navy, O.S. 1351, 1943, proj-color.pdf (556 KB PDF)

Lubrication of Ordnance Equipment, NAVORD OD 3000, 1968, od3000-lubrication-ordnanace.pdf (11.6 MB PDF)

Dummy Log, I.C. Instruction Book No. 703, 1944, documents the Bendix Friez dummy log.

Optical Instruments Data Sheets, O.P. 1200, 1953, is a catalog of optical instruments, mostly used in gun fire control.

Boresights and Boresight Telescopes, O.P. 1449, 1949, describes the instruments used to align the gun sights with the guns they aim.

Instructions For Assembling And Disassembling Gun Barrels And Housings (Bayonet Joint Type), OD 2772, 1950, describes the best practices for installing and removing bayonet (interrupted thread) gun barrels from large guns.