305 mm/45 model 1906-10 (305 mm)

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Two types of the 305 mm/45 model 1906-10 (305 mm) turrets

Description

The French naval gun 305 mm/45 Modèle 1910 was designed from the French Courbet-class as a gun derived from the earlier Modèle 1906 of the Danton-class pre-dreadnoughts. Characterised by a complex design typical of French heavy naval guns of the era, the Modèle 1910 featured a number of minor constructional improvements over its predecessor, notably a stronger breech, an interrupted-thread breech block with a Farçot mechanism operable both electrically and manually, and the removal of four spare rounds previously stored in the turrets, which increased the safety of ammunition-handling procedures. Towards the end of the First World War, six surplus guns were converted into railway artillery, designated Canon de 305 modèle 1906/10 à glissement, which saw combat during the Second World War.

The 305 mm/45 model 1906-10 is a relatively challenging weapon to handle. Much like other World War One-era guns, it has a long reload time, wide spread and a very slow turret rotation speed. For the AP shells, on the balance between penetration and explosive filler, this gun goes all the way into explosive power, making these shells have some of the highest potential damage per minute among all contemporary 305 mm AP rounds but also one of the worst penetration characteristics. On the other hand, the HE shells have an outstanding muzzle velocity for the time, requiring less lead and giving lower spread than contemporaries, but also having a surprisingly low explosive filler, only 35% higher than that of the AP shells, often making it less beneficial to switch from AP to HE than one might expect.

Vehicles equipped with this weapon

General info

Tell us about the tactical and technical characteristics of the cannon or machine gun.

Available ammunition

Penetration statistics
Ammunition Type of
warhead 		Penetration @ 0° Angle of Attack (mm)
1,000 m 2,500 m 5,000 m 7,500 m 10,000 m 15,000 m
OEA Mle 1927 HE HE 66 66 66 66 66 66
OPF Mle 1910 APC APC 460 410 341 286 243 190
Shell details
Ammunition Type of
warhead 		Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(s) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (kg) 		Ricochet
0% 50% 100%
OEA Mle 1927 HE HE 905 308 0 0.1 27.72 79° 80° 81°
OPF Mle 1910 APC APC 798 428.35 0.03 17 18.11 48° 63° 71°

Comparison with analogues

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Usage in battles

Paris firing its main guns

Much like other main guns from World War One, it's best to use AP shells against enemy battleships. Heavy cruisers generally should be targeted with APC shells as well, but light cruisers and other vessels are best targeted with HE rounds or secondary guns. The long reload time of the guns makes it essential to think ahead and predict where the next broadside is going to fly.

Armour-piercing shells are more comparable to some of the SAP shells of other vessels, with their very large explosive filler but comparatively limited penetration. Still, while they're unlikely to make it directly into the magazines, especially of vessels in BR 8.7 or higher, the secondary shrapnel from the explosion itself is very likely to still deliver lethal damage, especially on magazines that have already suffered some damage.

Pros and cons

Pros:

  • Very large explosive filler for the AP shells
  • Excellent velocity of the HE rounds

Cons:

  • Very low penetration and below-average muzzle velocity of the AP shells, significantly affecting the performance of those shells, even despite their large explosive filler
  • Comparatively small explosive filler of the HE rounds.
  • Slow turret rotation speed

History

Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: https://wiki.warthunder.com/(Weapon-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />.

Media

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See also

External links


France naval cannons
37 mm  37 mm/50 model 1925 · 37 mm/50 model 1933
47 mm  3 pdr QF Hotchkiss
57 mm  57 mm/60 ACAD Mle 1951
75 mm  75 mm/50 Canet model 1891 · 75 mm/50 model 1922
90 mm  90 mm/50 model 1926
130 mm  130 mm/40 model 1919
138.6 mm  138.6 mm/55 model 1910 · 138.6 mm/40 model 1927 · 138.6 mm/50 model 1929 · 138.6 mm/50 model 1934 R1938
152 mm  152 mm/55 model 1930
155 mm  155 mm/50 model 1920
203 mm  203 mm/50 model 1924
305 mm  305 mm/45 model 1906-10
340 mm  340 mm/45 model 1912
  Foreign:
20 mm  2 cm/65 C/38 (Germany) · 2 cm/65 Flakvierling 38 (Germany) · 20 mm/70 Oerlikon Mk.II (USA/Britain)
40 mm  2pdr QF Mk.IIc (Britain) · 2pdr QF Mk.VIII (Britain) · Bofors L/60 Mark 2 (USA) · Bofors L/60 Mark 3 (USA)
87.6 mm  Ordnance QF 25pdr (87.6 mm) (Britain)
102 mm  4 in QF Mark V (Britain) · 4 inch/45 Mark XVI (Britain)
105 mm  SK C/33 AA (Germany)
128 mm  12.8 cm/45 SK C/34 (Germany)
150 mm  15 cm/48 KC/36 (Germany)

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