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Re: Updated Transcript of Worsley's Log
From: David C
Date: 2017 Jan 26, 22:18 -0800
From: David C
Date: 2017 Jan 26, 22:18 -0800
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.
My point was that in 1917 the Board of Trade did not examine for intercept/azimuth methods. It is therefore a reasonable assumption that Worsley, who had qualified years before, had not been examined in intercept/azimuth methods. He may have learned the methods informally.
I have a copy of A Guide Book to the Local Marine Board Examination (1875 edition). New examinations had come into use in 1872. The celestial navigation requirements can be summarised thus:
2nd Mate Meridian Altitude
1st Mate Long by Chron & ex-meridian
Master....
Extra-Master Lunars, double altitudes, equal altitudes, Sumner's method.
Between 1875 and 1917 lunars were dropped and the Master's ticket upgraded. I note that Worsley was not an Extra Master. We need to know when the Master's ticket was upgraded to know if Worsley had been examined in Sumners. I do not have that information. I think that it is unlikely that he would not have been examined in interecept/azimuth mehods.
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