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Admiralty Compass Observatory, 1842-1971 (Manuscript) 1948 ACO/S&T/10/19
Admiralty Research & Development Progress Report, Compass Department, May 1948. technical report 670, CD/133/48.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1968-1970 ACO/12/1
Compass Patents, compiled by W E May, 7 February 1968 and inventory of a collection of books and pamphlets from the Compass Observatory, Slough, 1970, including an ACO Compass Catalogue.
Record of Swings and Brief Analysis, 1904- 1914 (Manuscript) 1904-1914 ACO/2/21
Record of Swings and Brief Analysis, 1904- 1914, volume marked Register of Correspondence, ships swung in order to test the deviation of the compass.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1936 ACO/S&T/19/1
RAE Instructional Leaflet 203 Gyro Compass Type E, 1936, Inst/5608/29.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1951 ACO/S&T/19/8
Refined method of compass calibration, Ministry of Supply, Aeroplane and Armament experimental establishment.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1944-1944 ACO/S&T/19/9
Magnetic Stability in Aircraft by Flight Lt. L. Booth, 1944
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1952 ACO/S&T/10/5
Report of Basin Dry Dock Trials, 13-15 November 1952, Periscope Sextant Types CH67, 1952, GCD 8/52 by D. W. Payn.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1953 ACO/S&T/10/6
Report of Sea Trial, 12-14 January 1953, Periscope Sextant Type, CH67, GCD 9/53.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1953 ACO/S&T/10/7
Report of Dry Dock Trials, between 25 and 26 February 1953 and between 15 and 16 April 1953, Periscope Sextant Types CH67, GCD 10/53 by D. W. Payn.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1954-1955 ACO/S&T/10/8
Report of sea trials of moving lens device, periscope sextant types CH67 in HMS TIPTOE, 7-9 December 1954, GCD 11/54 by D. W. Payn.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1954 ACO/S&T/10/9
Report on a visit to USA to study gyroscopic developments and their applications to stable elements, gyro-compasses and navigation systems, 21 September to 14 October 1954, W. F. Rawlinson and H. T. Heal.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1957 ACO/S&T/10/12
ACO Report, re: Sea Trials of Sperry Gyro Magnetic Compass in HMS DARK ANTAGONIST.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1958 ACO/S&T/10/13
Report on the SESTREL (Henry Browne) small boat and junior hand bearing compasses.
Admiralty Compass Observatory, 1842-1971 (Manuscript) ACO/6/10
"Servo test on AP 160400 compass retransmission unit" by W P Anderson, A E Lee and RH Stretton, n.d.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1958-07-01 - 1958-07-25 ACO/6/8
"Single degree of freedom gyro units report on a visit to Detroit controls" by J Preston BSc. Ph.D, 1 July - 25 July 1958, copy no.43.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1956-01-17 ACO/6/6
Periscope sextant development in the Royal Navy, 17 January 1956 by D. W. Payn.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1957-1958 ACO/6/7
"The Sperry Mark 22, Modulation O Gyro Compass Report trials at the ACO, February 1957 to February 1958.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1957 ACO/6/5
"SINS (Ships' Inertial Navigation Systems) and relative projects - report on visit to USA, 27 August - 12 September 1957" by HC Wassell, copy number 8.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1945 ACO/S&T/9/7
Report on the Admiralty Transmitting Magnetic Compass T. III (DRX-33-43), TR 151.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1945 ACO/S&T/9/12
Admiralty Transmitting Magnetic Compass (ATM C) Type II Trials in HMS WIZARD (DRX-63-44), TR 193.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1957 ACO/S&T/10/1
S.I.N.S (Ships' Inertial Navigation Systems) and related projects, report on visit to United States of America (USA), by H. C. Wassell on 27 August 1957.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1958 ACO/S&T/10/2
Report on visit to USA re: S.I.N.S (Ships' Inertial Navigation Systems) by J. Preston.
Admiralty Compass Observatory, 1842-1971 (Manuscript) ACO/6/1
"Damping of saturated position controlled servomechanisms" by R. Stretton, copy no.33, ACO report, n.d.