811 first revision is a RESTRICTED publication. 380-Range Table for Flat Nose Projectiles. 4431, all copies of which are to be destroyed. 811, dated February 1942, and Ordnance Data No. The revised edition supersedes Ordnance Pamphlet No. For purposes of uniform procedure in operation and maintenance they are to be used by all schools, training centers, and gun mount personnel.ģ. These supplement the regulations of the Ordnance Manual. The text includes instructions for operation and maintenance of all equipment described. 811 first revision describes 3-inch 50-caliber dual-purpose Gun Mounts Mark 20 Modifications, Mark 21 and Modifications, and Mark 22 and Modifications as of December 1943 as installed on Army, Navy, Coast Guard, Merchant Marine, and Lend-lease vessels.Ģ. 811, First Revisionģ-INCH GUN MOUNTS: MARK 20 MODS. a(CNO, SecNav-1 copy only, ComdtMarCorps) h*, j, n(SPECIAL LISTS K, L, N*, V, AA), q, z ġ1. Distribution Center mailing addresses should be obtained from List 10 nn of the Standard Navy Distribution List, or from the reverse side of NAVORD FORM 1.Ĩ. Espiritu Santo, New Hebrides Exeter, England Manus Island, Admiralty Islands. Requests for additional copies of OP 811, 1st Revision, Change 1, should be submitted on NAVORD FORM 1, ORDNANCE PUBLICATIONS AND FORMS REQUISITION, to the nearest Ordnance Publications Distribution Center: Navy Yard, Wash. Insert change sheet between cover and title page. Insert change write on cover 'Change I entered"Īpproved by The Chief of The Bureau of OrdnanceĪppendix II - 3-inch Gun Mounts Mark 22, Mods 4 and 20 - Quick firing mechanism is attached. To all holders of Ordnance Pamphlet 811 (1st. NAVY DEPARTMENT, BUREAU OF ORDNANCE, WASHINGTON, D.C. This publication is RESTRICTED and will be handled in accordance with Article 76, United States Navy Regulations, 1920 Please report any typos, or particularly annoying layout issues with the Mail Feedback Form for correction. This process creates errors that are compounded while encoding for the Web. This text was captured by optical character recognition.
In addition to errors we have attempted to preserve from the original
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22 mods 4 all manual#
In this online version of the manual we have attempted to keep the flavor of the original layout while taking advantage 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.