Class overview Name Protefs classBuilders Chantiers de la Loire shipyard[ 1] Operators Hellenic Navy Preceded by Katsonis Built 1928–1929 In commission 1929–1945[ 1] Completed 4[ 1] Lost 3 Retired 1 General characteristics Type Submarine Displacement
surfaced: 750 tons;
submerged: 960 tons
Length 68.6 m (225 ft) Beam 5.73 m (18.8 ft) Draft 4.18 m (13.7 ft) Propulsion
two-shaft Sulzer diesel engines;
two electric engine motors;
1420bhp , 1,200 shp [ 1]
Speed
surfaced: 14 kn (26 km/h; 16 mph)
submerged: 9.5 kn (17.6 km/h; 10.9 mph)[ 1]
Range 3,500 nmi (6,500 km; 4,000 mi) surfaced @ 10 kn (19 km/h; 12 mph)[ 1] Endurance 100 nmi (190 km; 120 mi) submerged @ 5 kn (9.3 km/h; 5.8 mph)[ 1] Test depth 260 ft (80 m)[ 1] Complement 41 Armament
6 × 21-inch (533 mm) internal bow T/T,
2 × 21-inch (533 mm) Internal stern T/T;
1 × 100 mm gun, 1 x 3pdr AA gun
The Protefs classProteus class in some sources) was a group of submarines built for the Hellenic Navy in the late 1920s. The boats were built to a Loire-Simonot design in France and were larger than the preceding Katsonis
Four boats were built, all were named after sea gods from Greek mythology .
Ship
Builder
Launched
Fate
Protefs (Y3) Πρωτεύς
AC de la Loire
24 October 1927
sunk 19 December 1940, rammed by Italian torpedo boat Antares off Valona , Albania
Nirefs (Y4) Νηρεύς
AC de la Loire
December 1927
Decommissioned 1945
Triton (Y5) Τρίτων)
AC de la Loire
4 April 1928
sunk 16 November 1942 by German patrol boat UJ2102 near Euboea
Glafkos (Y6) Γλαύκος
Chantiers Navales Français Blainville
1928
Lost 4 April 1942
The three boats which survived the fall of Greece in 1941 served under overall Royal Navy control in the Eastern Mediterranean.
References
Bibliography
Caruana, Joseph (2012). "Emergency Victualling of Malta During WWII". Warship International . LXIX (4): 357–364. ISSN 0043-0374 . Mühlthaler, Erich (1998). "Question 51/97". Warship International . XXXV (4): 419–420. ISSN 0043-0374 .
