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Admiralty Compass Observatory, 1842-1971 (Manuscript) 1962 ACO/6/3
"Report on the Watts absolute compass", 1962, copy no.22, ACO publication.
Admiralty Compass Observatory, 1842-1971 (Manuscript) ACO/6/2
"Preliminary note on the polar mode operation of S.I.N.S (Ships' Inertial Navigation Systems)" by E Hoy, copy no.37, ACO report.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1944 ACO/S&T/19/11
Air Swings by Astro Compass by Snowball and Preiss, Aircraft and armament experimental establishment.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1944 ACO/S&T/19/13
Robinson's Photo- electric Sun Compass and its application to the air swinging of aircraft compasses by Wing Commander Snowball and JD Wayte.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1955 ACO/S&T/9/1
Test report on Army Prismatic Compass III (MEX-59-50), TR 71.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1946 ACO/S&T/19/16
Survey of the results, conclusions and recommendation of an investigation into compass swinging methods.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1945 ACO/S&T/19/17
Experimental Navigation Division, Aeroplane and Armament Experimental Establishment, suggested revision of compass adjustment and calibration technique.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1953 ACO/S&T/9/2
Test report on Watts Datum Compass (MEX-51-50), TR 72.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1894 ACO/S&T/20/2
Article entitled The Jumper-Stay Compass by the Reynolds Patent Overhead Compass Company, including a handwritten report on the Jumper-Stay compass and a miscellaneous letter written, to E W Creak of the ACO, Compass Department.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1934 ACO/S&T/9/4
Technical report on the research into deviations in aircraft compasses in all- steel aircraft, TR 110.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1893 ACO/S&T/20/3
Handwritten report entitled The sine deflector by Dr Waghorn, with a note on the submission in 1893.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1945 ACO/S&T/9/5
Report on the Sperry Gyrosyn Compass, DRX-84-45, TR 116.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1948 ACO/S&T/9/6
Notes on a small gyro compass for coastal craft, 1948, by H C Wassell (GCD/3/48), TR 144.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1826-1950 ACO/5/23
Notes and diagrams, typescript, Eddy Current Damping, experiments by Sir. W. Snow Harris, 1826 and German Report, 1950 and journal, Philosophical Transactions of the Royal Society, 1831
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1902-04-15 - 1903-04-14 ACO/S&T/20/24
Correspondence and notes concerning non magnetic steel and conning tower compasses.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1951 ACO/S&T/22/10
Report April/51 on high latitude flight by number 9 specialist navigation course, March 1951 by the Royal Air Force Central Navigation and Control School.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1904-04-12 - 1904-04-13 ACO/S&T/20/26
Report on experiments at Portsmouth concerning the disturbance caused to a compass by its proximity to a torpedo by James Henderson, Superintendent of Compasses.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1962 ACO/S&T/10/16
Notes on a visit to Nortronics, a division of the North Rop Corporation, Norwood, Massachusetts, USA, by Dr. J. Preston.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1953 ACO/S&T/23/1
Handbook of Admiralty Gyro Magnetic Compass Mark 10.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1946 ACO/S&T/10/17
Research and Development Progress Report, CD/12M/1, ACO, technical report. 668.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1985 ACO/S&T/23/4
Paper, entitled 'Navigation Equipments in the Royal Navy.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1949 ACO/S&T/10/20
Research & Development Progress Report, Compass Department, May 1949, technical report no. 671, CD/0127/49.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1948 ACO/S&T/10/24
Notes on Admiraty Compass Observatory, Admiralty Transmitting Magnetic Compass (ATMC) Type W.D., mounted on sexton on 25-pounder propelled gun, technical report: 786.
Admiralty Compass Observatory, 1842-1971 (Manuscript) 1948-02-06 ACO/S&T/22/1
A new system for compass correction by G N Harvey, ACO - paper read at the Institute of Navigation.