A light AA weapon used on coastal submarines. Fired fixed rounds.

I have been unable to determine the differences between the Model years, but I suspect that they had to do with the mountings.

Actual bore length was 34.5 calibers.

Gun Characteristics

Designation 75 mm/35 (2.95") Model 1925 and Model 1928
Ship Class Used On "600-tonnes" coastal submarine classes of the Loire-Simonot, Schneider-Laubeuf and Normand-Fenaux types
Saphir class mine-laying submarines
Date Of Design 1925 and 1928
Date In Service 1926
Gun Weight N/A
Gun Length oa 111 inches (2.817 m)
Bore Length 101.9 in (2.588 m)
Rifling Length N/A
Grooves N/A
Lands N/A
Twist N/A
Chamber Volume N/A
Rate Of Fire about 15 rounds per minute


Type Fixed
Weight of Complete Round N/A
Projectile Types and Weights HE: 13.6 lbs. (6.175 kg)
SAP: 17.6 lbs. (7.98 kg) 1
Bursting Charge N/A
Projectile Length N/A - Complete round 25.6 in (64.95 cm)
Propellant Charge N/A
Muzzle Velocity HE: 1,870 fps (570 mps)
SAP: 1,657 fps (505 mps)
Working Pressure N/A
Approximate Barrel Life N/A
Ammunition stowage per gun N/A
  • ^SAP was intended for use against surfaced submarines.


Range with 13.6 lbs. (6.175 kg) HE
Elevation Distance
No information available No information available

Mount/Turret Data

  • Single open emplacements
    • Submarines (1): Model 1925 or Model 1928
Weight N/A
Elevation -10 / +75 degrees
Elevation Rate N/A
Train about +150 / -150 degrees
Train Rate N/A
Gun recoil 8.7 in (22 cm)


Data from:

  • "Naval Weapons of World War Two" by John Campbell
  • "Navies of the Second World War - The French Navy" by Henri le Masson


  • "The French Navy under Steam" picture essay in "United States Naval Institute Proceedings" Vol. 80, No. 7, July 1954

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