Adapted from the SP 75 mm gun by shortening the barrel and given a high-elevation mounting, this AA weapon was obsolete by the start of World War II. Fired fixed rounds.
I have been unable to determine the differences between the Model years. Possibly these were slight improvements.
|Designation||75 mm/50 (2.95") Model 1922, 1924 and 1927|
|Ship Class Used On||Bretagne, Béarn, Duquesne, Suffren 1, Jeanne D'Arc, Duguay-Trouin, Chacal (2100 tonnes) and Bourrasque (1500 tonnes) classes|
|Date Of Design||1922, 1924 and 1927|
|Date In Service||1926|
|Gun Weight||1.05 tons (1.07 mt)|
|Gun Length oa||N/A|
|Bore Length||147.6 in (3.75 m)|
|Rate Of Fire||8 - 15 rounds per minute 2|
- ^The theoretical rate of fire was 15 rounds per minute but 8 rounds per minute was the practical rate.
|Weight of Complete Round||26.5 lbs. (12.01 kg)|
|Projectile Types and Weights 1||HE: 13.07 lbs. (5.93 kg)
|Projectile Length||about 12.8 in (32.5 cm)
Complete round 38.1 in (96.67 cm)
|Propellant Charge||4.81 lbs. (2.18 kg) BM5|
|Cartridge Case Type, Size and Empty Weight||27.1 x 4.33 in (688.5 x 110 mm), 13.4 lbs. (6.08 kg)|
|Muzzle Velocity||2,789 fps (850 mps)|
|Approximate Barrel Life||N/A|
|Ammunition stowage per gun 2||Duguay-Trouin: 135 rounds 3
Duquesne and Suffren: 500 rounds
Jeanne D-Arc: 400 rounds 4
Bourrasque: 180 HE and 120 starshell
Chacal: 150 HE and 60 starshell
|Elevation||-10 / +90 degrees|
|Train||about +150 / -150 degrees|
|Loading Angle||-10 / +75 degrees|
- "Naval Weapons of World War Two" by John Campbell
- "Navies of the Second World War - The French Navy" by Henri le Masson
- "French Light Cruisers" article by Jean Guigliani and Albert Moreau in "Warships International No. 3, 2001"
- "French Cruisers: 1922 - 1954" and "French Destroyers: Torpilleurs d'Escadre & Contre-Torpilleurs 1922 - 1956" both by John Jordan and Jean Moulin
- "Battleships of World War Two," "Cruisers of World War Two" and "Destroyers of World War Two" all by M.J. Whitley