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    Re: Updated Transcript of Worsley's Log
    From: Brad Morris
    Date: 2017 Jan 26, 03:25 -0500
    David

    Some facts about Worsley 
    Born 1872
    Went to sea 1887 (age 15)
    Third mate 1891 (age 19)
    Fifth Officer 1892 (age 20)
    Third Officer 1895 (age 23)
    Masters Certificate 1900 (age 28)
    James Caird 1915 (age 43)

    My guess at his navigational exposure would be at his Fifth Officer posting in 1892.  Therefore, examining training for 1917, as you have done, is 25 years too late. 

    Please find a similar reference for the 1890's, 1900 at the very latest, when Worsley is certified as a master.

    Brad


    On Jan 26, 2017 2:25 AM, "David C" <NoReply_DavidC@fer3.com> wrote:

    Finally it was pointed out that by 1916 time sights were obsolete and had been replaced by intercept-azimuth LoP’s. Any thoughts as to the practicality of using the modern approach would be in a small boat in heavy seas while lying on a pile of ballast rocks?

    Nicholls's Concise Guide to Board of Trade Examinations 1917  is a guide to what British mariners were being taught in that period. Of course it does not prove what methods they were actually using. I have attached the contents pages from the 1917 Nicholls's.

    Note that the seaman were taught long by chron, meridian altitudes and sumner's method. Looking in the book the latter method was Sumner's chord (four point method). Position was found by plotting.  They were not taught intercept-azimuth LoP's. This is consistant with Blackburne's complaint (discussed in the Understanding a 1902 Sumner thread) that the Board of Trade did not examine candidates on either the alt/azimuth sumner or the Mark St Hilaire method.

    Changing the subject - what is the difference between a First Mate and an Only Mate?



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