Last modified: 2007-07-28 by rob raeside
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![[Royal Navy jack']](../images/g/gb.gif)
image by Clay Moss, 16 December 2006
The Union Flag is the official jack of the Royal Navy - strictly speaking, this is the only time it should be called the 'Union Jack'.
Roy Stilling, 8 February 1996
The Union Jack is reserved at sea for the Royal Navy.
André Coutanche, 28 September 2000
The decision to allow vessels operated by the Royal Air Force the privilege of
wearing the Union Flag as a jack was taken in 1947 [National Archives (PRO)
ADM/121665], but it was not extended to the Army until 1966:
"Her Majesty the Queen has graciously permitted operational vessels of the Army
flying the Army Ensign commanded by Army officers and manned by military
personnel in uniform to be titled "Her Majesty's Army Vessels" and to fly the
Union Flag at the fore when moored or dressed overall under way."
Royal Warrant October 1966. [The Army's Navy by D.Habesch]
David Prothero, 27 April 2007
The Army's sea-going vessels, which were part of the Royal Army Service Corps (RASC),
were manned mainly by civilians; rather like the ships of the Royal Naval
Auxiliary Service. The latter have a square version of their ensign as a jack,
and I suppose the Army did the same (if they bothered with a jack). Changes
occurred after 1965 when the RASC fleet and the fleet of the Royal Engineers
were amalgamated into the Royal Corps of Transport. The warrant of October 1966
had no immediate effect because there was no Army Ensign, use of which was
conditional on use of the Union Jack. The RASC and RE's had had different Corps
Ensigns. An Army Blue Ensign with Royal Crest superimposed on crossed swords was
produced and first used, presumably with a Union Jack when appropriate, on 17
May 1967.
David Prothero, 2 May 2007
Use of a Union Jack by the RAF was the result of a complaint in 1947 that "Bridport",
an ex-minesweeper transfered from the Royal Navy to the RAF was flying the Union
Flag as a jack. It was foreseen that the question could also arise with "Bridlington"
and "Adastral" a 5,400 ton ship being transferred from the Ministry of Transport
to the RAF for use as a seaplane depot ship in Singapore. It was decided that
RAF ships could wear the Union Flag but could not call themselves HMS. An
implementation date in June 1948 seems reasonable for a decision taken sometime
in 1947?
David Prothero, 2 May 2007
A jack, a flag flown on a staff at the bow of a ship, is a relatively insignificant flag. Ensigns which indicate nationality are, I believe, regulated by international laws, but a jack would be subject only to the laws of the country in which the ship was registered. Thus, in very general terms as I understand it, Britain can prohibit ships registered in Britain from fly the Union Jack, but would not be able to enforce the prohibition against a ship not registered in Britain.
David Prothero, 29 September 2000
See below for the civil jack.
Jacks are probably not used much because most public service vessels do not want
to involve themselves in all the rigmarole of lowering the jack when getting
under way, and raising it again when not underway. In any case many departments
have only small launches, in which a jack is unnecessary. Judging by
photographs, the Royal Fleet Auxiliary Service now seem to use them, though this
was not always so.
David Prothero, 15 January 2003
A survey in 1922 found that of 66 RFA Oilers and Petrol
Carriers only two carried jacks. It was pointed out at the time that, after the
abolition of Squadron Colours, public service jacks served no useful purpose.
They were introduced for public service vessels by the Royal Proclamation of 12
July 1694. At that time merchant ships flew the Red Ensign and no jack, while
warships flew the Red, White or Blue Ensign and the Union Jack. Allocating a Red
Jack to public service vessels, identified them as such, without allowing them
to infringe the right of King's ships to be the only ships permitted to fly a
Union Jack. In 1864 when Red Ensigns and Blue Ensigns ceased to be flown by
ships of the Royal Navy, Blue Ensigns were allocated to ships in the service of
any public office, the colour of the Jack was changed to Blue. But since
warships flew the White Ensign, and merchant ships flew the Red Ensign, the Blue
Ensign alone identified a departmental ship, making the jack redundant.
David Prothero, 15 January 2003
The St George was expressly laid down as being the jack to be used by English merchant ships in a Royal Proclamation of 1674, and continued so until the beginning of the 19th Century (by which time it was no longer possible to wear a Jack as sea anyway). The relevant part of the Proclamation of 1674 lays down the colours as:
"...those usually hithertofore worn on merchants' ships viz: the Flag and Jack white with a red cross (commonly called Saint George's Cross) passing through right through the same...".Christopher Southworth, 18 August 2004
In the proclamation of 1674, from which Christopher quoted, "flag" was still being used in its original sense of "masthead colour". In "A Memorandum on Merchant Ensigns and Jacks" this note appears after a copy of the 1674 Proclamation.
"This Proclamation recognises the existence, in addition to the Ensign, of both a flag (in the sense of a masthead colour) and a jack for the Merchant Service, both identical in design ( White, with a Red Cross passing quite through the same), and it regularises their being flown on Merchant Ships."[National Archives (PRO) ADM 116/3566]David Prothero 20 August 2004
For what it's worth, a model of the "Great Michael" in the Royal Scottish
Museum, Edinburgh, has a square Scottish saltire in the bows. The real ship,
built for King James IV in 1511, is said to have been, at 240 feet (probably
over-all) (73m), the largest warship in the world. Photograph of the model is in
'The Story of the Scottish Flag' by McMillan and Stewart.
David Prothero, 19 August 2004
Give a sailor a mast and he'll generally stick a flag on it, but the English
Royal Navy didn't actually begin to fly jacks on a regular basis until the
1630's (although there is at least one reference to the practice in the late
16th Century), but the Scots navy post-union and up to 1707 (if not previously)
was miniscule and I would imagine that the Proclamation of 1634 reserving the
Union Jack for ships in royal service applied equally to the Scots as well?
It is perfectly possible that the Scottish navy were in advance of the English
and flew a Saltire Jack prior to the Union of Crowns, but Perrin and Wilson are
both silent on the matter so the answer is I don't know?
Christopher Southworth, 19 August 2004
It would appear, from what evidence we have, that the wearing of a flag on the bowsprit was a comparatively rare occurrence before the early-17th Century. The wording of the Proclamation of 1606 (which established the Union Flag) strongly suggests, however, that the Cross of St George was customarily worn at the main masthead prior to that date (at least by merchant vessels), whilst its new position was laid down as being the fore topmast.
It became impossible to fly a jack at sea - at least from a jack staff -
because of a change to the design of headsails. The relatively inefficient
square-sail rigged from a spar below the bowsprit (in use from at least Roman
times) was abandoned for the far more effective triangular headsails rigged from
the foremast to the bowsprit. We have visual, if only fragmentary documentary
evidence that the Jack was flown from a jack staff at sea as a matter of course
(at least when the Ensign was flown) during the 17th Century and into the 18th.
As far as I know the wearing of the Union Jack is a privilege rather a
requirement, but it wasn't unusual for a warship in the latter half of the 18th
and early-19th Century to wear a Union from the foretopmast when underway.
Christopher Southworth, 20 August 2004
Wearing a jack at the jackstaff in harbour may have been written into King's Regulations & Admiralty Instructions (KR&AI) when they were reprinted in 1926. It had certainly become the subject of regulation by 1937, and may have been introduced before 1926 by Admiralty Fleet Order (AFO) and an amendment to the 1913 KR&AI. "The Union Flag is worn by HM ships of the Royal Navy at the Jackstaff in harbour between the hours of 0800 or 0900 and sunset unless the ship is refitting." [Manual of Seamanship, 1937]
The practice was suspended during the 1939-45 war, probably in 1942 by AFO
6072/42. It had been hoped that wearing jacks in harbour would be resumed soon
after the end of the war, the target date being 1 January 1946. However it was
necessary that all ships in commission should resume at the same time, and some
vessels built during the war had no jackstaffs (or even ensign staffs). It was
not until 3 January 1947 that AFO 1/47 ordered resumption of normal procedures
in accordance with KR&AI, article 117.
David Prothero, 27 February 2007
![[Jack of the Royal Fleet Auxiliary]](../images/g/gb-rfajk.gif)
by Graham Bartram
I enclose an example of a state jack, in this case the jack of the Royal Fleet Auxiliary, to show the square Union.
Graham Bartram, 11 December 1999
In my limited experience of such documents, an Admiralty Warrant granting the right to fly a defaced blue ensign also specifically mentioned an accompanying defaced blue jack, and this is repeated in those more recently issued by the Ministry of Defence. A typical example is Jersey where the Admiralty Warrant of 2 March 1907 states that (in addition to the ensign) '...the said vessel (in this case the steam tug 'Duke of Normandy') shall be permitted to wear a small blue flag with a Union described in the canton at the upper corner next to the staff, as a jack, with the badge of Jersey in the fly thereof'. This right is repeated in the MoD Warrants granted on 15 June 1967 and in August 1997. Such jacks are, properly speaking and by convention square, and as such carry a square Union in the canton. On the other hand, as far as I can find out the right to use them is rarely, if ever, exercised (at least nowadays).
Christopher Southworth, 14 January 2003
It is possible that the reference to a jack in the Admiralty Warrant for the Blue Ensign is peculiar to Jersey, and was included only because a jack was specifically requested in addition to the ensign. The warrant for Jersey was unusual in that it could not be issued under the provisions of the Order in Council 9 July 1864 which abolished Squadron Colours, since the States of Jersey were not a Public Department, nor under the Colonial Naval Defence Act of 1865, since Jersey was not a colony. It was therefore issued as a special case under Sec.73(i) of the Merchant Shipping Act 1894; "any other ship or boat for the time being allowed to wear any other national colour (other than the Red Ensign) in pursuance of a warrant from His Majesty or from the Admiralty."
David Prothero, 15 January 2003
Yes the three warrants I referred to previously were all for
Jersey, and upon checking I find that I have only one
other (I thought I had two more). This is a copy of the MoD Warrant granting the
right to fly a defaced blue ensign to Guernsey. It is
undated (but was sent with an accompanying letter of 3 July 2000) and also
confers the right to fly a defaced blue jack.
Of course the Admiralty and subsequent MoD Warrants under discussion were issued
by virtue of the various Merchant Shipping Acts (the current wording is, it
would appear, almost identical to that of the original), as, I presume, were
those of the fleet auxiliary (since it forms part of the Merchant Marine)? What
we need to know, and what I await information from the MoD on (if it ever
arrives), is whether the granting of a defaced blue jack is general for Warrants
issued to Government authorities, or, if the two cases in my possession are
unique? According to the Admiralty librarian, sight of any Admiralty Warrants
would require a visit to the Public Record Office.
The appearance of such a jack in the Flaggenbuch - considering the lengths gone
to in ensuring the accuracy of that publication - seems to confirm that the
practice had (at least in 1939 if not now) some sort of official sanction?
Christopher Southworth, 17 January 2003
![[Pilot Jack]](../images/g/gb~pjck.gif)
by Martin Grieve
![[Pilot Jack]](../images/g/gb~pj.gif)
by Martin Grieve
There is a different jack for civil vessels. This is an elongated
Union Flag with a wide white border around it.
Graham Bartram, 1 June 1999
The Pilot Jack (the white-bordered Union Jack) ceased to be a pilot signal in 1970. It is only used as the
civil jack (also named merchant jack, but recreational boats may also use it). It is not very often used.
David Prothero, 31 July 2001, Jose C. Alegria, 2 August 2001
Can this flag be used on inland waterways like the River Thames? It is
debatable as to whether the Merchant Shipping Act actually applies to inland
waterways, however whether it does or not, the River Thames is a tidal river and
as such should not (in my opinion) be so classed. It follows therefore, that
Part 1.4(1)(a)(ii) of the Merchant Shipping Act (1995) comes into force and
this specifically permits the use of "the Union Flag (commonly called the Union
Jack) with a white border" as being one of the "distinctive colours" permitted
to merchant vessels. The use of these "distinctive national colours" is nowhere
forbidden in law in either inland or coastal waterways.
Christopher Southworth, 11 June 2004
See also:
In the latter part of the 18th century the Royal Navy adopted, as the signal
for a pilot, a Union Jack flown at the topmast head of a vessel with one mast,
or at the fore topmast head of a vessel with more than one mast. I don't know if
the selection of the Union Jack for this signal was deliberate or by chance.
British merchant ships, for whom pilotage was compulsory in Britain, followed
the example of the Navy and adopted the same signal. It is surprising that this
was allowed as, since 1634, it had been an offence for a merchant ship to fly
the Union Jack . The Admiralty eventually took action to rectify this after
Captain Frederick Marryat published the "Code of Signals for the Merchant
Service" in 1817, and included the Union Jack as one of the set of signal flags.
A warrant was issued on 15 November 1822 repeating that it was an offence for a
merchant ship to fly the Union Jack, but temporarily authorising its use as a
signal flag until 1 January 1824.
The Ship Owners of London opposed this and asked the Admiralty to end
restrictions on the use of the Union Jack. It was a necessary part of Marryat's
Code, which was about to be adopted by the French and Americans. The Admiralty
replied that the use of the Union Jack as the signal for a pilot had been
admitted, and the indulgence had led to its indiscriminate use. They were
prepared to allow its continued use as a pilot signal for British ships, but
felt it would be highly inconvenient if the Union Jack were to become part of a
general code, particularly if the code were to be introduced into the French and
American Navies. Their Lordships could see no reason why a different flag should
not be substituted for the Union Jack.
The Ship Owners asked Captain Marryat to resolve the problem. He thought that
the best plan was to take advantage of the fact that all British ships, whether
men- of-war or merchant vessels, carried the Red Ensign, which had the Union
Jack in one corner. He thought that if a Red Ensign was trimmed to leave just
the Union with a red edge at the bottom and fly, the alteration would not be
great enough to cause confusion, but would be sufficient to satisfy Their
Lordships. It did not. It was pointed out that the suggestion did not limit the
size of the margin, which might be so small as to be indistinguishable, and it
was suggested that a flag of yellow and blue, or any other distinct colours,
could replace the Union Jack. The Ship Owners proposed a Union Jack with a six
inch red border on all sides. They thought this would be cheaper than
introducing a new flag, as every ship already had a Union Jack. They also
suggested that in the proposed Regulations relating to Pilotage the same flag
should be specified as the signal for a pilot. Their Lordships agreed to this,
but the border was to be white instead of red, and the size of the border was to
be a proportion of the size of the flag.
The new flag was warranted on 8 July 1823, the details published in the London
Gazette on the 9th, to be effective 1 January 1824. The change was included in
the fourth edition of Marryat's Code published in 1826. The same white-bordered
Union Jack was adopted by the Royal Navy as 'the Pilot Signal in all parts of
the world' on 5 December 1826.
[Based on Memorandum on Merchant Ensigns and Jacks, 1674 to 1879.
Copies in PRO docs ADM 116/3566 and BT 103/308.
Article "The British Merchant Jack" by Cdr. Hilary P. Mead, R.N. in Mariner's Mirror Volume 21, pages 395-410, October 1935.]
David Prothero, 6 September 2003
The white-over-red Pilot flag was first created by a British statute in 1808
(during the reign of George III). The 1808 Act provided that the pilot flag: (1)
was to be carried in boats carrying the pilot, and then (2) in the ship in which
the pilot was "carried off" to perform his services. In later years, these
provisions were incorporated into the Merchant Shipping Act, and later into the
successive Pilotage Acts. Since 1808, this white-over-red flag has thus been the
Pilot Distinguishing Flag for Britain, and due to accession, for many
Commonwealth nations as well. Many European nations copied the British practice,
too, because it was widely understood. The Pilot Distinguishing Flag has been
part of British law since 1808. No exceptions. (The flags used by ships to
summon pilots have changed, however.) And in a fair number of nations, the
simple white-over-red is the "Pilot Flag" also.
The International Code of Signals (to which Britain subscribes) provides that
code flag "H" means "I am carrying a pilot" --but this provision speaks to ships
under pilotage, not really to pilot boats offering their services and certainly
not to pilothouses where the pilots await their jobs. The International Code
Flag "H" --which is divided vertically white/red -- first appeared in Marryat's
Code of 1817, and was later incorporated into the successive International
Signal Codes. The use of this red-and-white "H" flag to convey a pilot-related
message clearly stems from the practice started in 1808. Also, under the COLREGS,
the lights displayed by a pilot boat at night are white over red; "White over
red; pilot ahead!"
Britain's 1808 law did not apply to the USA, of course, and the white-over-red
flag never caught on in the USA. In many US ports, the code flag "P" (Blue
Peter) was used to mark pilot boats in the 19th century. This provision is still
part of the law in Louisiana to this day (and was part of some states' laws for
many years). The pilot boats of Houston, Texas, still carry the "P" flag in
rigid form. The use of the "P" flag is at variance with the meaning assigned in
the International Code, yet it is very firmly entrenched in local custom. "P is
for pilot." Many Latin American nations followed the US custom, and used "P" (or
at least a blue-and-white flag of some sort). Some US and Latin American pilot
boats are painted blue. A few nations created unique pilot boat flags that
follow neither the UK nor US traditions. This said, a few US pilots are now
using the International "H" flag as a pilot boat flag (instead of "P"), under a
broader interpretation of, "I am carrying a pilot".
James T. Liston, 16 March 2003
I have found no reference to the Union Jack with a white border before its
introduction in 1823 as a signal for calling a pilot in the 'Code of Signals for
the Merchant Service' of Captain Frederick Marryat which went through 10
Editions before being replaced by 'The Commercial Code of Signals of the use of
All Nations' in 1857 (which was itself changed to 'The International Code' about
1880). If it had been introduced for any other purpose, I am sure we would have
heard about it. The Union Jack was certainly used by the Royal Navy for signaling (as
was the Ensign) prior to the introduction of an organized flag code, but always
without defacement of any sort. The merchant marine are known to have flown a
Union Jack - as a Jack - upon occasion, but this was strictly illegal and had
been so since 1634.
Christopher Southworth, 4 September 2003
See also:
As the pilot jack today can only be used in harbour or at anchor, when used at
anchor does it or can it act as a substitute for an anchor ball?
David Ward, 3 September 2003
The anchor ball is an option, not a requirement, and therefore the use of
a jack as a substitute does not arise. The 1951 Seamanship Manual made the point
that a warship did not normally hoist a black ball when at anchor, but the fact
that she was at anchor (or made fast to the shore or a buoy) might be indicated
by her jack flying from the jack staff.
David Prothero, 3 September 2003
![[St George's Cross]](../images/g/gb-eng.gif)
by Vincent Morley
There is a special jack - the red St George's Cross on white - that
is reserved for vessels which took part in the Dunkirk evacuation of
the British Expeditionary Force in World War II.
Graham Bartram, 1 June 1999
Does this mean the actual vessels? Or is it parallel to the French practice of a Free French honour jack, as mentioned by Ivan Sache on the Free French Forces page, "Nowadays, ships that have a name previously belonging to a ship that joined the FNFL (Forces Navales Françaises Libres) use the FNFL ensign as honour jack." If the practice is the first-mentioned, more restricted use, are there any vessels left today?
Ole Andersen, 24 September 2000
I thought that this was a squarish but perfectly ordinary St George's flag that could be flown as a jack by anyone. It was selected as a means of identifying those vessels that were used in the evacuation when they are taking part in ceremonies. One ship that took part in the anniversary commemorations last June is now registered in Malta and flew the Maltese Ensign and St George's Jack.
David Prothero, 24 September 2000
In Norie and Hobbs (1848) a flag of this
design is referred to as the St. George's Jack.
Peter Hans van den Muijzenberg, 12 November 2001
Interesting background information can be found on
this web page. "The
term Little Ship applies to all craft that were originally privately owned and
includes private yachts, barges, British, French, Belgian and Dutch fishing
vessels and pleasure steamers, but the Association does include some ex-Service
vessels, which are now privately owned, and ex-Lifeboats."
As to the flag shown on top of
this page: "It was
then (first Annual General Meeting, 13 Dec. 1967, jm) decided that we should
have a House Flag. Permission was given by the Admiralty, the College of Heralds
and the City of Dunkirk for the Cross of St. George (the flag of Admiralty) to
be defaced with the Arms of Dunkirk for use as the Association's House Flag.
This can be worn by Member Ships at any time when the owner is aboard. In
addition, when in company, we fly the undefaced Cross of St. George at the bow.
Again this is by Admiralty Warrant. To avoid any possible confusion with barges
wearing an Admiral's flag, the Dunkirk Little Ships must wear the Red Ensign
when flying the undefaced Flag of St. George at the bows."
A better view of the Dunkirk coat of arms (undoubtedly drawn by Jiri Louda) is
offered by Ralf Hartemink's site, International
Civic Heraldry: per fess: or a lion sable passant armed and langued gules,
argent a dolphin azure naiant embowed finned and langued gules. In other words,
picturing a (former) Flemish city and harbour.
Jan Mertens, 13 February 2004
The photograph of a warship with two ensign staffs, pointed out by Jan
Mertens at
http://www.belgianbadges4046.be/RNSB.htm reminded me that towards the end of
the 1939 - 1945 war, British warships were completed without a jackstaff, and
hoisting a jack in any ship of the Royal Navy was not resumed until late 1946 or
early 1947. I have been unable to find out whether the use of jacks was
suspended at the beginning of the war, or some time later. Did this happen in
the 1914 - 1918 war, and was it common wartime practice in other navies?
David Prothero, 28 December 2003
I have a photograph of HMS Lion taken at Scapa Flow in 1916, and she is
wearing a jack. Whether this was normal practice during the First War I simply
don't know, but it does seem likely? What is certain, however, is that gun
salutes were dropped for the duration.
Christopher Southworth, 28 December 2003
This photo of HMS Lion may well have actually been taken pre-war (a 'stock'
photo if you like), and the same might well apply to your photograph of the
Grand Fleet?
David Prothero, 30 December 2003
I've had a look at various books, including H.M. Le Fleming's 'Ships of World
War One' (that covers the RN and the German Navy), and none of the pictures that
can be definitely dated to 1914-18 shows ships wearing jacks (even though they
have the jackstaff rigged), and this includes a shot across some crowded
destroyer pens at Rosyth.
Ian Sumner, 30 December 2003
It seems that in a prolonged war there does come a time when a navy may
decide that jacks are more trouble than they are worth.
1914 - 1918.
Ian pointed out there are photographs in H.M. Le Fleming's book 'Warships of
World War 1' showing British warships not underway, but not flying a jack. Those
photographs that do show a ship flying a jack are probably, in some cases
definitely, post-war. The photograph of HMS Lion, mentioned by Chris, might have
been 'stock', or she may have been an exception, as she was the flagship of
Admiral Beatty's Battle-Cruiser Squadron.
1939 - 1945.
I found my notes about the resumption of the use of the Union Jack. [National
Archives (PRO) ADM 1/18176]
5 July 1945. It was noted that Union Flags were not supplied to minor war
vessels and certain major war vessels.
3 September 1945. Commander-in-Chief Home Fleet hoped that use of the Union Jack
could be resumed without delay. 1 January 1946 was suggested as a possible date
for resumption. However it was necessary that all ships in commission should
resume at the same time, and some ships (e.g., landing ships) had been built
without jack-staffs or even ensign staffs, and most were without rigging wires
for dressing ship.
3 December 1946. Admiralty Fleet Order (AFO) 7028/46. Notice of resumption.
3 January 1947. AFO 1/47. Resumption of normal procedures in accordance with
King's Regulations & Admiralty Instructions, article 117.
There was a reference to AFO 6072/42, which would have been issued late November
or early December 1942. Perhaps it introduced the restriction effective 1
January 1943 ?
David Prothero, 31 December 2003
If so, the restriction was not reflected in the 1943 edition of King's
Regulations & Admiralty Instructions. I checked it at the U.S. Navy Department
Library yesterday, including updates effective through November 1943, and the
portions concerning display of "Union Flag at the jackstaff" were the normal
ones--always displayed when in harbor. (Note that the flag was nowhere referred
to as "Union Jack", even when flown as a jack...how's that for pedantry?)
Joe McMillan, 31 December 2003
I can say with a fair degree of certainty that all the South African 'little
ships' (minesweepers and escort vessels) that served in the Med, wore the RN's
White Ensign and the SA national flag as a jack throughout the war. When the
jackstaff was struck for the armament right forward in the bows (as was the case
for all our converted whale catchers), the jack was hoisted at the starboard
yardarm. As our ships strictly followed RN practice as ordered by the Admiral
Commanding Mediterranean(?), I would have thought that the same applied to the
RN as a whole. How certain are you that the RN ceased flying the jack later in
the war?
As for WWI, I have a vague memory of seeing a photograph of the Grand Fleet
anchored in Scapa Flow and as far as memory goes they were all flying their
jacks. The absence thereof would have certainly made an impression.
Andre Burgers, 29 December 2003
I do not know if Admiralty Fleet Orders applied to all fleets or just the
Home Fleet. However it seems that the South African ships did not follow RN
practice entirely, as an RN vessel would not have hoisted the Union Jack at a
yardarm ?
David Prothero, 31 December 2003
I did find a note in a copy of Mariner's Mirror, vol.23 (1937) pp.229-30,
signed simply 'A.L.', which quoted Admiralty Interim Order No.62 of 14th
September 1914, ordering the flying of the Union Flag on or near the foremast as
an extra national device, in addition to the White Ensign, because of the
similarity between the White Ensign and the German Naval Ensign.
This usage was cancelled on 16th November 1914 by the Admiralty by Interim Order
S.55 (and repeated by S.266 of 26th November 1915), whereby the Union Flag was
replaced by the Red Ensign. The Admiralty reversed themselves once more on 11th
January 1916, which once more authorised the use of the Union at the foremast.
This was cancelled again by S.13 of 1916.
Now, could it be the use of the Union as a jack was abandoned, either formally
or informally, because of its explicit use at the masthead?
Ian Sumner, 31 December 2003
The Union Jack was withdrawn during the 1939 - 1945 War, but only from
smaller vessels:
Admiralty Fleet Order 6072/42. 10 December 1942. Union Flag Allowances HM Ships.
Wearing of Union Flag at the jack staff and Ensign at the ensign staff by HM Ships in harbour is to be resumed as soon as practicable. The 3 December 1946 Admiralty Fleet Order 7028/46. Notice of Resumption, seems to have been a repeat of the May Order.
David Prothero, 20 January 2004