30 October 1930 - 18 February 1972

By Donald H. Sadler

Edited by George A. Wilkins

PART 3. AT BATH 1939-1949   Chapters 7-11

The work of the Office expanded still further during the war when it took on extra non-astronomical work and later acted as the centre for the Admiralty Computing Service. After the war Sadler developed a strong relationship with the Nautical Almanac Office at the U.S. Naval Observatory that led to major changes in the publications as well as to cooperation in their production. Finally, the Office moved to temporary buildings in the grounds of Herstmonceux Castle, which had become the new base of the Royal Greenwich Observatory.

Chapter 7   Early days at Bath (before move to Ensleigh)
My billets in Bath
Initial work in Bath
Mathematical tables
Wartime astronomical projects
    Black-out times and repayment work
    Ryde night-illumination diagrams
    The astrograph
    Coriolis effect
    Twilight for air navigation
Non-astronomical work of the Office
    Bomb Ballistic Tables
    A job for Massey
Security at Laggan and war service
Life in war-time
A storm at Bath
Bombing of Hammond's printing works
Chapter 8   From the move to Ensleigh until the end of the war
The move to Ensleigh
The bombing of Bath in 1942
Staff changes
Duties of the staff
Calculating and punched-card machines
Specialist course for air navigation
Relations with the Royal Air Force
Computations for the DECCA Navigation system
A personal note
Chapter 9   The Admiralty Computing Service
The beginning of the Admiralty Computing Service
The first job - on the Taylor bubble
Recruitment of staff
Range and background of A.C.S. jobs
Chapter 10   The post-war period (to about the end of 1947)
A visit to Germany
The post-war period in Bath
Post-war changes in staff
Formation of the Mathematics Division at N.P.L.
Captain Schmidt and Decca for Denmark
Cooperation with the Spanish Almanac Office
The Star Almanac
The Institute of Navigation
Other events of the post-war period
Chapter 11   Major changes in the post-war period
Visit to the U.S.A. in 1947
Revision of the Abridged Nautical Almanac
Tables for marine navigation
Further comments on tables for navigation at sea
New equipment and other topics of discussion
The return journey from the U.S.A.
The General Assembly of the I.A.U. in Zurich in 1948
Concern as to the future site of the Office
The new Scientific Civil Service
A search for a 'celestial mechanic'
Other staff changes
Planetary Co-ordinates
The move to Herstmonceux
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