johnbr
2nd Lieutenant
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Picture of the Day - Miscellaneous
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johnbr
2nd Lieutenant
Aircraft Doom the Bismarck
International Naval Research Organization Articles - Bismarck's Final Battle - NavWeaps
International Naval Research Organization Articles - Bismarck's Final Battle - NavWeaps
johnbr
2nd Lieutenant
USS Connecticut B-18 getting one of her bow 12"/45 (30.5 cm) guns installed.
johnbr
2nd Lieutenant
johnbr
2nd Lieutenant
Info on USA big ship guns.
Gun Characteristics Designation 18"/48 (45.7 cm) Mark 1
16"/56 (40.6 cm) Mark 4
18"/47 (45.7 cm) Mark "A"Ship Class Used On 1 None (Experimental)Date Of Design 1920Date In Service Never mounted aboard ship
Prototype:
As 18"/48 (45.7 cm): Never finished in this configuration
As 16"/56 (40.6 cm): 1927
As 18"/47 (45.7 cm): 1942
Gun Weight 18"/48 (45.7 cm): 177.8 tons (180.7 mt)
16"/56 (40.6 cm): 185.2 tons (188.2 mt)
18"/47 (45.7 cm): 177.0 tons (179.8 mt)Gun Length oa 18"/48 (45.7 cm): 884.0 in (22.454 m)
16"/56 (40.6 cm): 915.0 in (23.241 m)
18"/47 (45.7 cm): 865.0 in (21.971 m)Bore Length 18"/48 (45.7 cm): 864 in (21.946 m)
16"/56 (40.6 cm): 896 in (22.758 m)
18"/47 (45.7 cm): about 846 in (21.488 m)Rifling Length 18"/48 (45.7 cm): 737.263 in (18.727 m)
16"/56 (40.6 cm): 765.712 in (19.449 m)
18"/47 (45.7 cm): 718.965 in (18.262 m)Grooves 16"/56 (40.6 cm): 96 grooves
Others: N/ALands N/ATwist 18"/48 (45.7 cm): Uniform RH 1 in 32
16"/56 (40.6 cm): Uniform RH 1 in 35
18"/47 (45.7 cm): Uniform RH 1 in 25Chamber Volume 18"/48 (45.7 cm): 36,900 in3 (604.7 dm3)
16"/56 (40.6 cm): 34,000 in3 (557.2 dm3)
18"/47 (45.7 cm): 36,900 in3 (604.7 dm3)Rate Of Fire about 1.5 - 1.75 rounds per minute
Gun Characteristics Designation 18"/48 (45.7 cm) Mark 1
16"/56 (40.6 cm) Mark 4
18"/47 (45.7 cm) Mark "A"Ship Class Used On 1 None (Experimental)Date Of Design 1920Date In Service Never mounted aboard ship
Prototype:
As 18"/48 (45.7 cm): Never finished in this configuration
As 16"/56 (40.6 cm): 1927
As 18"/47 (45.7 cm): 1942
Gun Weight 18"/48 (45.7 cm): 177.8 tons (180.7 mt)
16"/56 (40.6 cm): 185.2 tons (188.2 mt)
18"/47 (45.7 cm): 177.0 tons (179.8 mt)Gun Length oa 18"/48 (45.7 cm): 884.0 in (22.454 m)
16"/56 (40.6 cm): 915.0 in (23.241 m)
18"/47 (45.7 cm): 865.0 in (21.971 m)Bore Length 18"/48 (45.7 cm): 864 in (21.946 m)
16"/56 (40.6 cm): 896 in (22.758 m)
18"/47 (45.7 cm): about 846 in (21.488 m)Rifling Length 18"/48 (45.7 cm): 737.263 in (18.727 m)
16"/56 (40.6 cm): 765.712 in (19.449 m)
18"/47 (45.7 cm): 718.965 in (18.262 m)Grooves 16"/56 (40.6 cm): 96 grooves
Others: N/ALands N/ATwist 18"/48 (45.7 cm): Uniform RH 1 in 32
16"/56 (40.6 cm): Uniform RH 1 in 35
18"/47 (45.7 cm): Uniform RH 1 in 25Chamber Volume 18"/48 (45.7 cm): 36,900 in3 (604.7 dm3)
16"/56 (40.6 cm): 34,000 in3 (557.2 dm3)
18"/47 (45.7 cm): 36,900 in3 (604.7 dm3)Rate Of Fire about 1.5 - 1.75 rounds per minute
- ^Although this weapon was extensively considered in numerous battleship design studies of the 1920s and 1930s, it was never formally selected for any ship. The last US battleship design, the cancelled USS Montana (BB-67) class, would have carried the same 16"/50 (40.6 cm) Mark 7 guns as did the previous USS Iowa (BB-61) class.
johnbr
2nd Lieutenant
johnbr
2nd Lieutenant
he French submarine Surcouf was launched in 1929 in direct response to the Washington Naval Treaty of 1922. This treaty placed a limit on naval construction to prevent an arms race in the post World War I years. The limits were placed on surface ships, restricting both total displacement and the caliber of the guns. The French sought to exploit the lack of restrictions on submarines by commissioning what was in effect an undersea cruiser. This submarine did not go unnoticed for there are dozens of articles about the launching in American newspapers. These articles bore such titles as "France Will Launch Greatest Submarine" At 400 feet in length she was the size of a light cruiser and larger than any American and British submarine. She was armored to a degree like a surface ship, carried four 5.5 inch guns as well as torpedo tubes. She even had a watertight hanger with a seaplane. This "undersea dreadnaught" or "French monster" could travel halfway around the world at 13 knots without refueling.[2] Within the hull was space for 8 officers and 110 men including 90 days worth of provisions. The French navy allowed for wine in their rations and this was not neglected in the Surcouf. Just forward of the reserve 550mm torpedoes was stowage for 5.2 tons or 5200 liters of wine. This capacity would provide half a liter of wine per man per day for all 90 days. Given that the daily French naval ration was half a liter there would be no wine for any of the 40 prisoners she could carry
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johnbr
2nd Lieutenant
Battleship Bismarck
johnbr
2nd Lieutenant
French battleship 34cm breech-loading gun.
In the centre of the photograph we can see the toothed mechanism for giving a small degree of inclination. Just above the complex breech mechanism is a plaque with the date 1884. Arc of fire is obtained by swinging the gun mount along a rail system as seen in the immediate lower foreground.The rail system overhead is for moving shells and powder charges..
The Rise of the Big Gun
In the centre of the photograph we can see the toothed mechanism for giving a small degree of inclination. Just above the complex breech mechanism is a plaque with the date 1884. Arc of fire is obtained by swinging the gun mount along a rail system as seen in the immediate lower foreground.The rail system overhead is for moving shells and powder charges..
The Rise of the Big Gun
johnbr
2nd Lieutenant
HMS M1
Big guns were installed not only in battleships but also in submarines. The M series of British submarines included four boats completed between 1917 to 1918. Each carried a single 12 inch gun that could elevate but the submarine had to turn to change the direction of fire. In company with HM submarines H31, H48 and H43, M1 visited Anvers in 1925. In November of the same year, M1 was rammed by SS Vidar and sank with all hands. The wreck was located in 1999 and this is possibly the last photograph of M1.
Verso "Anvers 5 Oct. 1925 Visite de sous-marins Anglais Dernière photo du M1"
10.3cm x 7.7cm Gelatin silver print
Big guns were installed not only in battleships but also in submarines. The M series of British submarines included four boats completed between 1917 to 1918. Each carried a single 12 inch gun that could elevate but the submarine had to turn to change the direction of fire. In company with HM submarines H31, H48 and H43, M1 visited Anvers in 1925. In November of the same year, M1 was rammed by SS Vidar and sank with all hands. The wreck was located in 1999 and this is possibly the last photograph of M1.
Verso "Anvers 5 Oct. 1925 Visite de sous-marins Anglais Dernière photo du M1"
johnbr
2nd Lieutenant
Marine Nationale Surcouf
The German submarine fleet caused great havoc to the Allies during World War One and almost brought Britian to its knees. The Naval Disarmement conferences of the 1920s and 30s in Washington and London attempted to limit the construction of submarines. The British even called for a total ban on submarines and were concerned about the construction of Surcouf with its two 8 inch guns mounted in a rotating turret. With an endurance of 90 days, the Surcouf was a long range commercial raider and included a small spotter floatplane in a water-tight compartment. Here we can see the mechanism for closing the end of each barrel prior to diving.
16.8cm x 11.7cm Gelatin silver print
The German submarine fleet caused great havoc to the Allies during World War One and almost brought Britian to its knees. The Naval Disarmement conferences of the 1920s and 30s in Washington and London attempted to limit the construction of submarines. The British even called for a total ban on submarines and were concerned about the construction of Surcouf with its two 8 inch guns mounted in a rotating turret. With an endurance of 90 days, the Surcouf was a long range commercial raider and included a small spotter floatplane in a water-tight compartment. Here we can see the mechanism for closing the end of each barrel prior to diving.
16.8cm x 11.7cm Gelatin silver print
johnbr
2nd Lieutenant
SS Florida seen from HMS Glorious
During exercises with Royal Navy cruisers and destroyers off the coast of Spain and with some of her aircraft in the air, the aircraft carrier HMS Glorious was in collision with the three-year-old French liner Florida of the Societe Generale de Transport Maritime à Vapeur. There were banks of fog in the area on 1st April 1931 and the aircraft carrier, after entering a thick fog bank, turned to leave the fog so as to recover her aircraft. However, the manoeuvre was compromised by the presence of the screening cruisers and destroyers. The turn was cancelled and shortly after 9h00, HMS Glorious hit SS Florida just forward of the bridge as she crossed the starboard bow of HMS Glorious. After the collision, the carrier remained in contact with SS Florida and her passengers were transferred to HMS Glorious using improvised gangways.
Verso: "A view after Glorious has backed out." in black ink.
14.2cm x 10.7cm Gelatin silver print
HMS Glorious prepares to tow SS FLorida.
With pumps running and collision mats over part of the hole, HMS Glorious backed out and prepared to tow SS Florida to Gibraltar.
Verso: "Florida showing men from Glorious on board preparing to tow." in black ink.
The damaged bow of HMS Glorious.
The collision damaged 60 feet of the flying-off deck and here the crew are trying to clear the bow.
During exercises with Royal Navy cruisers and destroyers off the coast of Spain and with some of her aircraft in the air, the aircraft carrier HMS Glorious was in collision with the three-year-old French liner Florida of the Societe Generale de Transport Maritime à Vapeur. There were banks of fog in the area on 1st April 1931 and the aircraft carrier, after entering a thick fog bank, turned to leave the fog so as to recover her aircraft. However, the manoeuvre was compromised by the presence of the screening cruisers and destroyers. The turn was cancelled and shortly after 9h00, HMS Glorious hit SS Florida just forward of the bridge as she crossed the starboard bow of HMS Glorious. After the collision, the carrier remained in contact with SS Florida and her passengers were transferred to HMS Glorious using improvised gangways.
Verso: "A view after Glorious has backed out." in black ink.
14.2cm x 10.7cm Gelatin silver print
HMS Glorious prepares to tow SS FLorida.
With pumps running and collision mats over part of the hole, HMS Glorious backed out and prepared to tow SS Florida to Gibraltar.
Verso: "Florida showing men from Glorious on board preparing to tow." in black ink.
The damaged bow of HMS Glorious.
The collision damaged 60 feet of the flying-off deck and here the crew are trying to clear the bow.
johnbr
2nd Lieutenant
Surcouf info
Displacement: 3,250 long tons (3,300 t) (surfaced)
4,304 long tons (4,373 t) (submerged)
2,880 long tons (2,930 t) (dead)
Length: 110 m (361 ft)
Beam: 9 m (29 ft 6 in)
Draft: 7.25 m (23 ft 9 in)
Installed power: 7,600 hp (5,700 kW) (surfaced)
3,400 hp (2,500 kW) (submerged)
Propulsion: 2 × Sulzer diesel engines (surfaced)
2 × electric motors (submerged)
2 × screws
Speed: 18.5 knots (34.3 km/h; 21.3 mph) (surfaced)
10 kn (19 km/h; 12 mph) (submerged)
Range: Surfaced:
18,500 km (10,000 nmi; 11,500 mi) at 10 kn (19 km/h; 12 mph)
12,600 km (6,800 nmi; 7,800 mi) at 13.5 kn (25.0 km/h; 15.5 mph)
Submerged:
130 km (70 nmi; 81 mi) at 4.5 kn (8.3 km/h; 5.2 mph)
110 km (59 nmi; 68 mi) at 5 kn (9.3 km/h; 5.8 mph)
Endurance: 90 days
Test depth: 80 m (260 ft)
Boats & landing craft carried: 1 × motorboat in watertight deck well
Capacity: 280 long tons (280 t)
Complement: 8 officers and 110 men
Armament: 2 × 203 mm (8 in) guns (1×2)
2 × 37 mm (1.46 in) anti-aircraft guns (2×1)
4 × 13.2 mm (0.52 in) anti-aircraft machine guns (2×2)
8 × 550 mm (22 in) torpedo tubes (14 torpedoes)
4 × 400 mm (16 in) torpedo tubes (8 torpedoes)
Aircraft carried: 1 × Besson MB.411 floatplane
Displacement: 3,250 long tons (3,300 t) (surfaced)
4,304 long tons (4,373 t) (submerged)
2,880 long tons (2,930 t) (dead)
Length: 110 m (361 ft)
Beam: 9 m (29 ft 6 in)
Draft: 7.25 m (23 ft 9 in)
Installed power: 7,600 hp (5,700 kW) (surfaced)
3,400 hp (2,500 kW) (submerged)
Propulsion: 2 × Sulzer diesel engines (surfaced)
2 × electric motors (submerged)
2 × screws
Speed: 18.5 knots (34.3 km/h; 21.3 mph) (surfaced)
10 kn (19 km/h; 12 mph) (submerged)
Range: Surfaced:
18,500 km (10,000 nmi; 11,500 mi) at 10 kn (19 km/h; 12 mph)
12,600 km (6,800 nmi; 7,800 mi) at 13.5 kn (25.0 km/h; 15.5 mph)
Submerged:
130 km (70 nmi; 81 mi) at 4.5 kn (8.3 km/h; 5.2 mph)
110 km (59 nmi; 68 mi) at 5 kn (9.3 km/h; 5.8 mph)
Endurance: 90 days
Test depth: 80 m (260 ft)
Boats & landing craft carried: 1 × motorboat in watertight deck well
Capacity: 280 long tons (280 t)
Complement: 8 officers and 110 men
Armament: 2 × 203 mm (8 in) guns (1×2)
2 × 37 mm (1.46 in) anti-aircraft guns (2×1)
4 × 13.2 mm (0.52 in) anti-aircraft machine guns (2×2)
8 × 550 mm (22 in) torpedo tubes (14 torpedoes)
4 × 400 mm (16 in) torpedo tubes (8 torpedoes)
Aircraft carried: 1 × Besson MB.411 floatplane
johnbr
2nd Lieutenant
xb-51
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vikingBerserker
Lieutenant General
Awesome posts!
johnbr
2nd Lieutenant
And it was a lot of work.
special ed
1st Sergeant
- 5,111
- May 13, 2018
Greatly appreciated. Many thanks.
- Thread starter
- #1,860
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