HMS Hood was an Empire Ship that sailed the world. As such, her upper decks were an interesting mix, of both peacetime and wartime:
For me, the peacetime is represented by the variety of smaller boats that she carried on-board. I believe that these were used when she was in port, or when she had anchored off some tropical island, for some rest and relaxation (for her sailors). Yet, she was still a warship, with the armament to match! Here we can see: a 5.5 inch naval gun (lower left), a 4 inch high angle anti-aircraft gun (middle-bottom), and a quadruple 0.5 inch anti-aircraft gun (middle-bottom right). Now, I've heard it said, that sailors don't have a fear of heights! Hood's main mast, would appear to test this theory - with the mast's ladders being used to gain access, to both lookout posts, and wireless radio equipment. The long horizontal boom, that stems from the base of the main mast, is the main derrick, which was 65 feet long! I believe this was used, to lift both the smaller boats, and other heavy equipment (such as ammunition crates).
The highest observation point located on-board HMS Hood, was her spotting top:
It is here, that her look outs would have scowled the seas, looking for the tell tale glimpse, of an enemy vessel (in a time before radar). The tripod mast on the back, is where Hood's wireless rig was attached (the six horizontal lines coming in from the top left). Both structures, were supported by a single starfish - the black metallic structure, that's located underneath. One of HMS Hood's three survivors (from when she was sunk), was actually stationed in the spotting top - surviving because he was washed through a window, as everything else around him sunk!
If there's one Battleship (more than any other), that best illustrates the requirement of, mounting as many naval guns on your battleship (as possible), then there's no finer example, than the Royal Navy's - HMS Agincourt:
HMS Agincourt (of 1913), mounted no fewer than, fourteen twelve-inch naval guns (in seven twin-turrets). This was done, to both maximise her fire-power, and increase the chances of hitting, an enemy battleship. I like the fact, that her turret arrangement, adhered to the principles of Naval Conflict, that had been learned in the days of Nelson's - HMS Victory: the more guns you have, the more fighting power, your warship - brings to bear :) And yet, perhaps unlike the days of HMS Victory, did this maximisation of guns - come with a price tag! In the case of Agincourt, carrying so many turrets (seven), meant that their weight had to be paid for, at the expense of adequate - armoured protection ... For me, this was particularly apparent, upon the thinness of her belt armour (up to nine inches), the thinness of her deck armour (up to two and a half inches), and the thinness of her bulkheads (up to six inches). Of these, I would say that it's the bulkheads thickness, that would concern me the most - as having seven gun turrets, could easily mean, that a fire/explosion, in one of their magazine's/shell handling room's, could easily spread, to an adjacent gun turret/group of turrets! And given the fact, that HMS Agincourt was regarded (amongst the Royal Navy), as a floating magazine - leads little to the imagination ... Despite this, did HMS Agincourt, have several features to her profile, that I quite liked ... First: was the fact that Agincourt, mounted all of her primary naval guns, on the centreline, of her hull form. This meant that she could bring all, primary guns to bear, on both port and starboard - which maximised her broadside. The adoption/standardised use of centreline turrets, went hand-in-hand, with the Space Age Idea, of super-firing turrets (where one turret's roof, was directly beneath, another turret's barrels). In the case of Agincourt, did this lead to an interesting arrangement, of her aft turrets - a little group of three, that was somewhat unique, in their layout :) Second: having so many primary naval guns (fourteen twelve-inch), was it also a key requirement, for the shell spotters, to have an unimpeded line-of-sight, towards the enemy. Thus, is it good to see, that her forward lookout platform (that's mounted atop the forward-most tripod mast), is actually located, in-front of the forward-most smokestack :) Third: Where as HMS Dreadnought (the so-called grandfather of all later/better battleships), had for the most part, omitted any (dedicated) secondary armament - the same could not be said, for HMS Agincourt. In the case of Agincourt, do I like the fact, that she featured twenty six-inch guns - that were all grouped, within the central third, of her hull form. For me, the inclusion of six-inch (surface target) guns, reflected a decent realisation of the (potential) menace of Destroyers and Patrol Boats (who could both launch torpedoes!). Yet here, do I find, that there's a secondary armament feature, that I was not so keen on ... The fact that her six-inch guns, were case-mated (i.e. built into the hull form), and that they were situated (mostly) beneath main deck level, meant that they would have been unusable, in anything but - a calm sea! Despite this, the inclusion of a (powerful) secondary armament, meant that Agincourt, did at least cater for, two different ranges, of Naval Engagement - both long range (with her twelve-inch guns), and short/medium range (with her six-inch guns). Which really was, a step in the right direction :) Overall: HMS Agincourt, was a (somewhat) novel solution, to the conflicting Naval requirements - of both maximising fire-power, and maintaining survivability. Ironically, the spread of her seven turrets, both aided survivability (as the chances of an enemy shell, knocking them all out - was much reduced), but the chances of an enemy shell, knocking out the entire battleship, was much increased (as the turrets were housed within a hull form, that did not have enough - armoured protection).
If there's one Battleship (more than any other), that's responsible for defining an entire genre of Warships, than that credit of distinction, belongs only to the Royal Navy's - HMS Dreadnought (of 1906):
HMS Dreadnought, was a World Above, the Warships that had come before her (the pre-dreadnoughts), and her design was so radical (at the time), that she gave her name, to all the Dreadnoughts that came after her (which we know by today - as Battleships). I especially like the fact, that HMS Dreadnought, helped redefine the definition/meaning of the phase: Naval Engagement ... This was achieved, through a Space Age Idea - that unified her primary armament, to be of all the same calibre of guns: ten twelve-inch naval guns. This in-turn, supported the idea of Naval Engagements, from greater distances - as shell spotters, only had to look for one type of shell splash (to help correct their aiming). But, why the requirement for a greater range of engagement? Well ... It was believed, that such Dreadnoughts, would no longer be within the range of - enemy torpedoes! It was an idea that was regarded as radical, because Navy Engagements (up to circa 1906), had always been fought, at closer ranges (being somewhat reminiscent, of the days of Nelson's - HMS Victory). When it comes to HMS Dreadnought's profile, there's three features, that stand out for me ... First: her high (ram shaped) bow. This would have helped with her sea keeping (of 21 knots), and have been useful (owing to its shape), for the ramming of enemy warships, and submarines! Second: the poles that extend along the side of her hull form. At first, I thought that these were a part of her armour - but they are in-fact, booms for her anti-torpedo nets (which would have been deployed, when she was in port, and/or when she was stationary). Third: the layout of her primary armament gun turrets (i.e. her ten twelve-inch naval guns). Three gun turrets were located on her centre line, and could fire on either beam - at an enemy located to port or starboard (as the turrets rotated). The remaining two turrets, were located on her beams/wings (one port, one starboard) - but could only fire at an enemy, located on the relevant beam/wing (owing to limited rotation, and no line of sight/fire across her main deck). Thus, do I like the fact, that HMS Dreadnought, could bring to bear: eight twelve-inch naval guns - for a full naval broadside! Despite this, are there two design features (of HMS Dreadnought), that I did not like ... First: was her complete lack (of a true) secondary armament. Having been so revolutionary, it was almost an afterthought, to have added in twenty-seven twelve-pounder guns (5.44 kilograms). These, were all mounted above deck, both on the roofs of her primary gun turrets, and within her topside superstructure. And as such, I find it slightly ironic/reflective, that these were the positions, that were used in later Battleship classes, for anti-aircraft arrangements. Thus did Dreadnought, lack any effective close range, medium calibre guns - that could have been of use, against enemy Patrol Boats and Destroyers (who ironically, could launch torpedoes!). Second: Was the location of her forward most, gun spotting platform (atop the tripod mast). Which could easily be smoked out, when she was at speed! Although to be fair, this particular design flaw, also affected - later Battleships. Overall: Dreadnought was the first of her kind, who sparked a Naval Arms race (as other countries wanted Dreadnoughts). Even so, there's one particular area, that Dreadnought often receives flak for - and that is, that her thickest belt armour (of 11 inches), was actually located beneath the waterline (when she was at sea), where it would do - little good! In any case, Dreadnought was a step in the right direction, as many of her novel features, made it successfully into - later Battleship classes :)