Last modified: 2013-12-18 by rob raeside
Keywords: royal navy handbook of signalling (1913) | signal flags |
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Blue affirmative![]() |
Blue Burgee![]() |
Negative![]() |
Red Affirmative![]() First substitute (flags) |
Preparative![]() |
Red Burgee![]() |
images by Phil Nelson |
Answering pendant![]() 2nd substitute - pendants |
Blue pendant![]() |
Church Pendant![]() |
Compass or red pendant![]() |
Equal speed![]() See notes. |
White pendant![]() |
Fishery duty![]() |
Interrogative pendant![]() 1st pennant substitute |
Guard pendant![]() |
Numeral![]() |
Oblique pendant![]() |
images by Phil Nelson |
Note about the dimensions of pendant.
In my handy little pocketbook sized Handbook of Signalling - 1918 (which I
think was in force at least since 1912), the images of the pennants are a bit
small and not well enough printed to be completely accurate. But measured with a
school compass, I get the following approximations:
Normal signal pennant
shape with, from the hoist, vertically striped
white-blue-white-blue-white-blue-white.
Overall proportions of hoist to
length: 1:3
Ratio of hoist width to fly width: 2:1
The width of the first
three white and three blue vertical bars seems to be equal.
The last white
bar tapering to the fly seems to be about 1.5 times the width of the other three
white bars.
I think the apparent differences in widths observed, even on
these very small images in front of me, are due to eye distortion resulting from
the difference in the heights of the stripes as the they taper towards the fly.
They also looked different to me at first glance, but measuring them with a
compass proves them to be more or less the same. It is in my view also unlikely
that the specifications would have called for different widths. Sailors,
particularly signalers, are practical people and varying widths of the vertical
stripes would have been just too complicated a design for a simple signal
pennant. Signal departments were issued with sewing machines so that yeomen of
signals could make their own repairs and even make up their own flags if needed
when far from official replenishment.
A point about the actual sizes of
the flags used in 1916 to keep in mind, is that HMS Iron Duke, Lord Jellicoe's
flagship, was a very large battleship and that the signal had to be read by a
very large number of other ships at varying distance away. They would therefore
have been fairly large flags, but unfortunately I have no source to tell me what
their actual sizes were.
Incidentally, Captain Barry Kent's book "Signal! A History of Signaling in the Royal Navy"
has a dustcover painting of the fleet at Jutland showing a line of battle ships
of which the foremost (Iron Duke I presume) is flying the clearly recognisable
group: 'Equal Speed Charlie London' at the top starboard yardarm and it also
shows the signal being repeated down the line.
Andries Burgers, 13
January 2008
The Admiralty Flag Book of 1889 gives the following dimensions:
Five
bar pennant : 6'9" hoist, 2' fly edge, bars 4' - 4' - 4' - 4'8" - 5'4".
Six
bar pennant : no vertical dimensions, bars 3'4" - 3'4" - 3'4" - 3'4" - 4' -
4'8".
David Prothero, 15 January 2008
Note about usage
Details about the use of the flag is available on the
Battle of Jutland page.