Greek Katsonis Class submarines
The Katsonis class was a French-built class of two submarines for the Hellenic Navy, serving from 1927–28 until the Second World War. The ships of the class were the first new submarines acquired by Greece after the First World War.
In general, they were similar to the French Navy's Circé-class submarines, of Schneider-Laubeuf design, but the conning tower was larger in order to accommodate the rotating platform of the 100 mm gun
Name - Pennant number - Launched - Commissioned - Fate
Katsonis - (Y-1) - 20 Mar 1926 - 8 Jun 1928 - Sunk by a German submarine chaser UJ-2101 (ex Greek mine sweeper Strymon) on 14 September 1943.
Papanikolis -(Y-2) - 19 Nov 1926 - 21 Dec 1927 - Decommissioned in 1945 and later scrapped. Its conning tower has been preserved, and is exhibited at the Hellenic Maritime Museum.
General characteristics
Displacement: surfaced: 576 MT/submerged: 775 MT
Length: 62.5 m
Beam: 5.3 m
Draft: 3.6 m
Propulsion: one two-shaft Schneider-Carels diesel engine 1,300 bhp &
two electric engine motors: 1000 shp
Speed: surfaced: 14 kts / submerged: 9.5 kts
Range: 3,500 NM surfaced at 10 kts
Endurance: 100 NM submerged at 5 kn
Test depth: 80 m
Complement: 30 men
Armament:
2 × 21-inch internal bow T/T,
2 × 21-inch external bow T/T,
2 × 21-inch external stern T/T;
1 × 100 mm gun, 1x 13,2 MG & 2 7.92 MGs
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