|Name||Excellent (launched as Queen Charlotte, 1810)||Explanation|
|Launched||17 May 1810|
|Builders measure||2289 tons|
|Note||1859 = Excellent, gunnery ship|
|Snippets concerning this vessels career|
|(January 1840)||Out of commission at Portsmouth|
|1 March 1859|
- 1 October 1859
|Commanded by Captain Henry Harvey, flagship of Vice-Admiral Edward Harvey, Sheerness|
|November 1859||Renamed Excellent, and converted to gunnery ship|
|31 December 1859|
- 1 January 1863
|Commanded by Captain Richard Strode Hewlett, gunnery ship, Portsmouth (replacing Excellent)|
|1 January 1863||Commanded by Captain Richard Strode Hewlett, gunnery ship, Portsmouth|
|4 July 1863|
- October 1866
|Commanded by Captain Astley Cooper Key, and superintendent of the Royal Naval College|
|3 September 1866|
- September 1869
|Commanded by Captain Arthur William Acland Hood, gunnery ship, and Director of the Royal Naval College, Portsmouth|
|23 August 1869|
- 21 May 1874
|Commanded by Captain Henry Boys, gunnery ship, Portsmouth|
|18 May 1874|
- 31 December 1876
|Commanded by Captain Thomas Brandreth, gunnery ship, Portsmouth|
|9 January 1877|
- 4 March 1880
|Commanded by Captain Frederick Anstruther Herbert, gunnery ship, Portsmouth|
|4 March 1880|
- 21 June 1881
|Commanded by Captain John Ommanney Hopkins, gunnery ship, Portsmouth|
|21 June 1881|
- 6 April 1883
|Commanded by Captain William Codrington, gunnery ship, Portsmouth|
|6 April 1883|
- 7 June 1885
|Commanded by Captain John Arbuthnot Fisher, gunnery ship, Portsmouth|
|23 July 1885|
- 31 October 1886
|Commanded by Captain John Arbuthnot Fisher, gunnery ship, Portsmouth|
|13 November 1886|
- 30 June 1887
|Commanded by Captain Compton Edward Domvile, gunnery ship, Portsmouth|
|Extracts from the Times newspaper|
|Tu 12 December 1865|
HER MAJESTY’S SHIP MINOTAUR.The iron frigate Minotaur, 6,621 tons, 1,250-horse power, Master Frank Inglis, under the command pro tem, of Captain F.A. Herbert, and manned by the crew of the Royal Sovereign, with supernumeraries from the Steam Reserve, went out of Portsmouth harbour yesterday afternoon and anchored at Spithead, where she will take in her ammunition and be swung to ascertain the deviation of her compass prior to starting for Portland on her trials of competitive 12-ton broadside gun carriages. The trials will be under the direction and superintendence of Captain A.C. Key, C.B., commanding Her Majesty’s gunnery ship Excellent. Portland roads will be made the anchorage ground on her return from each day's trial until their conclusion, when she will return to Spithead and await further orders from the Admiralty. The trials were originally intended to have been made with four carriages and slides; but one, designed by Sir William. Armstrong, not having been yet been received from Elswick, they will be confined to the following three:—
1. The Admiralty wooden pattern carriage and slide, fitted with eccentric rollers and other improvements suggested by Captain Key. The training gear is that of Mr. Cunningham ("Patent-topsail Cunningham," as he is termed in the Navy), and is precisely similar in every respect to the training gear fitted to the 12-ton broadside gun-carriage on board the Excellent, when it is spoken of as the most simple and yet efficient means of training heavy guns yet devised. It consists of a single port chain made fast on each side of the rear end of the slide, and leading thence by two single blocks on each side of the gun and its carriage, by the waterways to a crab winch fixed on the deck, entirely out of the way of the guns crew in working their gun in rapid firing, and also from its position not liable to injury from concussion on the ship's side being struck by an enemy's shot.
The weight of the carriage is 39 cwt. 2 qrs. 4 lb.; the weight of the slide, 38 cwt. 2 qrs. 8 lb. — total weight of carriage and slide, 78 cwt. 0 qrs. 12 lb.
The principal, or, perhaps, more correctly speaking, the only recommendation this carriage possesses is its antiquity. Its objectionable features are the absence of an easily worked running in and out gear, and the presence of all the inherent defects and weaknesses of a wooden gun-carriage when applied to mounting ordnance of such exceptional weight as guns of 12 tons. Captain Key's improvements have, however, so effectually reformed the character and power of the carriage and its slide that it will now act as a most excellent test for comparison with the results obtained by the new pattern iron carriages and their slides.
2. The Woolwich Arsenal, or Colonel Shaw’s iron carriage and slide. This carriage has single sides, strengthened with its iron framing. The compressor is a large iron clamp athwart the bottom of the carriage, and grasping the flanges of the slide. The gun’s running in and out gear is a flat endless chain, working over tooth-wheels at each end of the slide, worked by small hand-wheel levers at the rear of the slide. The slide is constructed of double T-iron. The training gear has been fitted under the superintendence of Mr. W. Lynn, assistant to Mr. Murray, the Superintending Engineer of Portsmouth dockyard. It consists of a cast-iron bracket fitted with a chain pinion, and fixed on the ship's side midway between the gunports. Upon the under side of the deck, directly below this bracket between the ship's beams, a transverse piece of shafting is fixed, having a chain wheel on one end and a bevel wheel on the other, the motion to the shafting being given by means of an endless chain between the chain wheels on the bracket on the gun-deck and the similar wheel on the transverse shafting below. The bevel wheel at the other or inner end of the transverse shafting gears with a similar wheel upon a short upright spindle which passes through the deck, and there is capped by a small chain wheel. Round this wheel an endless chain passes, attached to the slide of the gun-carriage, and to a single block on the opposite side of the carriage. The weight of the carriage is 34 cwt, 0 qrs. 2 lb.; the weight of the slide, 43 cwt. 3 qrs. 18 lb.; total weight, 77 cwt. 3 qrs. 20 lb. The main features of recommendation of this carriage and slide are lightness combined with strength, the acknowledged correctness of the principle on which it has been built, and the ease with which all its parts can be got at and repaired in the event of temporary injury during action without the delay of dismounting the gun. Its features of weakness are — a possible too great lightness of metal to stand without damage the shock from the discharge of a 12-ton rifled gun, a faulty application of the compressors, and an absolute want of leverage power over the running in and out gear from a want of larger pinions and wheel levers. All this would be remedial in another carriage built on the same principle.
3. Iron carriage and slide designed by and made under the superintendence of Commander Scott, Her Majesty's ship Research. This carriage has double, or box girder, sides of immense strength, and is filled in with wood to absorb the vibration of the iron if struck by the enemy's shot. The gun is run in and out by endless chains, similar to Colonel Shaw's carriage, worked by powerful pinions and hand-wheel levers, holding great control over the gun. The compressors are composed of three tapered balks of timber lying parallel with each other in the bed of the slide. From the bottom of the carriage four iron plates descend and fit in between these balks; through the sides of the carriage and through the upper edges of these plates are fixed right and left-handed screw levers, worked by wheel levers on each side, the whole forming a fourfold compressor of tremendous power. The slide is of equal strength and massiveness with the carriage. It is built on the box-girder principle, and traverses on raised metal racers, with hollow-soled trucks on Colonel Colquhoun's plan. The training gear forms part of the carriage and slide; a longitudinal shaft running under the slide is fitted with pinions at either end, and works in a rack-way upon the deck next the fore-and-after racers. The gun runs in and out and trains, apparently, with great facility. Another means of training is fitted to this gun, which, however, is only a copy of Mr. Cunningham's plan. The weight of the carriage is 2 tons 6 cwt, and of the slide, 3 tons 12 cwt., giving a total weight of 5 tons 18 cwt.
The chief apparent recommendations of Commander Scott's carriage and slide are the ease with which all its parts can be worked, and its evident ability to carry its gun and withstand the shock of its discharge. Its objectionable features in its present form are its evident cost of manufacture, weight of metal, and the objectionable metal rackway laid down on the ship's deck next to the raised metal racers. All these objections are, of course, removable in any second carriage and slide made on the same plan.
The forthcoming trials on board the Minotaur are of the highest importance. If our ironclads can, by the mechanical aid of improved carriages, carry guns of 12-tons' weight on their broadsides, they will not only do what the ships of no other naval Power have yet attempted, but also what some of the moat distinguished officers in the American navy have but just declared, as the result of their recent experience, to be altogether impracticable. In the "Report of the Secretary of the United States' Navy in relation to Armoured Vessels," printed by order of Congress, and containing all the official reports and documents on the subject received by Mr. Gideon Welles up to March 30, 1864, Rear-Admiral Goldsworthy, the officer quoted, says, in his "Opinion of Ironclads," sent in to Mr. Secretary Welles, and dated March 24, 1864,—
"According to my impressions, a gun of 12,000lb., fired with a normal charge of 21lb. of powder, is about the heaviest that can be used to advantage in the broadside ports of any vessel whatever."
After recommending that a gun of this weight should be made and fully tested and reported on, the Rear-Admiral adds:—
"I am fully aware that the New Ironsides has now on board still heavier guns and of larger calibre, carried broadside-wise — guns of 16,000lb. in weight and 11 inches in calibre — but I am not aware that either they or their carriages, which occupy, unavoidably so much space, have been subjected continuously, in action or at sea, to the effect of the use of solid shot, with charges of powder approaching one-fourth the weight of the projectiles. The test, no doubt, would prove palpably excessive in many respects. In all the actions of this vessel off Charleston, the rule with her, as I understand, was loaded shells with corresponding charges; and if she ever has resorted to solid shot with a large increase of charge, I am uninformed of the fact."
Our own opinion on this subject is very well expressed by Captain A.C. Key, in his official Report to the Admiralty on the smooth water trials conducted by him of the turrets and guns of the Royal Sovereign, and dated July 11, 1865. Captain Key says, at page 3 of his Report:—
"No practical reasons exist why a heavy gun should not be worked on a broadside with the same security as in a turret, and I am satisfied that there is no difference in this respect."
Captain Key at the time was writing of 12-ton guns, and he here appears to accept this as the maximum weight of the gun to be fought through a ship's broadside port — that is a gun weighing 26,880lb., in contradistinction to Admiral Goldsworthy's opinion that 12,000lb. must be the maximum weight. The American Admiral, no doubt, meant his gun to be fought under extreme conditions of weather and the ship's motion, and, unless the Minotaur be subjected to these conditions during her trials of these new iron carriages, her cruise will prove valueless, and American opinion, in the main, be found correct. Whatever may be the final results of the apparently interminable "Battle of the Guns," the Admiralty by their selection of the 12-ton coil-built gun have made that weapon, for the present, the maximum of size and calibre for the broadside armament of the iron-clad ships of Her Majesty’s navy, should the Minotaur's cruise prove the soundness of Captain Key's opinion. In their incomplete state, as smoothbores of 10·5-inch calibre, five of these guns have been now for some time in the turrets of the Royal Sovereign, four in those of the Scorpion, three on board the Minotaur for trials of carriages, and there are also understood to br somewhere about 200 more at Woolwich waiting the 9-inch rifled steel tubes with which it has been determined to fit them. One rifled gun of the same weight, imperfect however in some part of its bore, is also on board the gunnery ship Excellent for drill purposes. When a sufficient number of the guns at Woolwich have received their steel tubes they will be exchanged for their smoothbore brethren at present on board the Royal Sovereign, Scorpion, and Minotaur, and the formal entry of the gun as part armament of Her Majesty’s navy may then be considered to have been effected. Turret ships, such as we have even at present, can certainly carry and work a much heavier gun than one of 12 tons, and will doubtless receive them when we can procure them. Our present difficulty lies in providing carriages fitted with such mechanical aids as shall enable us to mount and fight such guns efficiently through broadside ports, and to meet this several inventors have come forward with carriages and their slides, and gear for running the gun in and out under sufficient control and all the conditions of the ship's movements at sea, for training quickly and steadily to any given angle, and for elevation, depression, &c. Preliminary trials have been made with both iron and modern carriages on board the Research and Minotaur, and valuable data have been deduced; but the first of a series of really comprehensive, competitive trials will commence on board the Minotaur, under Captain Key's direction, during the present week, in the generally rough waters off the Bill of Portland.