1928 - Launched. It is the only submarine of the class that is built in the Chantiers Navals Francais (Blainville, France). The other three were built in the Chantiers de la Loire.
17 Nov. 1930 - Commissioned.
1 Dec. 1930 - Received by A. Zangas and G. Labrinopoulos
1935 - Damaged during the political upheavals of 1935. It is possibly because of these damages that Glafkos is undergoing repairs and is out of action during the Greco-Italian war.
1940 - The new commander of Glafkos is Vaker.
1941 - The new commander of Glafkos is D. Zeppos.
19-23 Apr. 1941 - Glafkos escapes to Alexandria. New commander is V. Arslanoglou.
12 Jul. 1941 - Begins first wartime patrol in the Dodecannese.
21 Jul. 1941 - Sinks the Italian sailing vessel San Nicola (21 GRT) with gunfire 4 miles NW of Rhodes.
22 Jul. 1941 - Sinks a sailing vessel with gunfire off Castelorizzo.
27 Jul. 1941 - Returns from first patrol after a total of 216 hours submerged and 138 hours surfaced.
5 Nov. 1941 - Begins second wartime patrol north of Crete.
10 Nov. 1941 - On the way to Malta for engine repairs, Glafkos torpedoes and damages the German merchant Norburg (2392 GRT) off Suda Bay, Crete.
19 Nov. 1941 - Due to urgent need for repair, Glafkos arrives in Malta ending the second patrol after a total of 158 hours submerged and 169 hours surfaced.
1 Dec. 1941 - One of Glafkos's crew, Vasilios Merlin, loses his life while in training with British submarine HMS Perseus which sinks off Otranto.
27 Feb. 1942 - V. Arslanoglou and Ioannis Kostakos are the two casualties of a German bombing of the harbour of La Valetta, where Glafkos undergoes repairs. A. Daniolos takes command of the submarine.
4 Apr. 1942 - Sinks by German bombers in the Harbour of La Valetta. No casualties. The crew is transfered to Alexandria aboard Y-3 Proteus.
Y-6 Glafkos submarine of the Proteus class
Cost: £119,000 each submarine of the class
Displacement: Surfaced 750 tons, Submerged 960 tons
Length: 68.6 m
Beam: 5.73 m
Draft: 4.18 m
Propulsion: 2-shaft Sulzer diesels plus 2 electric motors, 1420bhp/1200shp
Max. Dive: 80 m
Speed: (Surf.) 14 knots, (Subm.) 9.5 knots
Range: (Surf.) 4,000 nm @ 10 knots, (Subm.) 100 nm @ 5 knots
Fuel: 105 tons of oil
Armament: 100mm gun at the forward end of the conning tower, at casing level (150 shells) and one 40mm. No external tubes. 8x 533mm torpedo tubes (6 bow, 2 stern; 8 torpedoes)
For gamers and game designers
With only two wartime patrols, Glafkos was the least active of the four Proteus-class submarines. In 1941, it was obsolete by the standards of the major powers, but still dangerous with the 8 torpedo tubes.