Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate | Modification |
---|---|---|---|---|---|---|---|---|
Astore | AS | BSN, Napoli | 1933 | 22.4.1934 | 6.1935 | to Sweden 3.1940 (Remus) | Spica group | |
Spica | SP | BSN, Napoli | 5.1933 | 11.3.1934 | 5.1935 | to Sweden 3.1940 (Romulus) | Spica group | |
Canopo | CA | CT, Riva Trigoso | 12.1935 | 1.10.1936 | 3.1937 | sunk 3.5.1941 | Climene group | |
Cassiopea | CS, 1953- F553 | CT, Riva Trigoso | 12.1935 | 22.11.1936 | 4.1937 | discarded 10.1959 | Climene group | |
Castore | CT | CNR, Ancona | 1.1936 | 27.9.1936 | 1.1937 | sunk 2.6.1943 | Climene group | |
Centauro | CO | CNR, Ancona | 5.1934 | 19.2.1936 | 6.1936 | sunk 4.11.1942 | Climene group | |
Cigno | CG | CNR, Ancona | 3.1936 | 24.11.1936 | 4.1937 | sunk 16.4.1943 | Climene group | |
Climene | CN, CE | CNR, Ancona | 7.1934 | 7.1.1936 | 4.1936 | sunk 28.4.1943 | Climene group | |
Aldebaran | AL | Ansaldo, Genoa | 10.1935 | 14.6.1936 | 12.1936 | sunk 20.10.1941 | Perseo group | |
Altair | AT | Ansaldo, Genoa | 10.1935 | 26.7.1936 | 12.1936 | sunk 20.10.1941 | Perseo group | |
Andromeda | AD | Ansaldo, Genoa | 10.1935 | 28.6.1936 | 12.1936 | sunk 17.3.1941 | Perseo group | |
Antares | AN | Ansaldo, Genoa | 10.1935 | 19.7.1936 | 12.1936 | sunk 28.5.1943 | Perseo group | |
Perseo | PS | CNQ, Fiume | 11.1934 | 9.10.1935 | 2.1936 | sunk 4.5.1943 | Perseo group | |
Sagittario | SG, 1953- F557 | CNQ, Fiume | 11.1935 | 21.6.1936 | 10.1936 | discarded 7.1964 | Perseo group | |
Sirio | SI, 1953- F554 | CNQ, Fiume | 11.1934 | 16.11.1935 | 3.1936 | discarded 10.1959 | Perseo group | |
Vega | VG | CNQ, Fiume | 11.1935 | 21.6.1936 | 10.1936 | sunk 10.1.1941 | Perseo group | |
Airone | AO | Ansaldo, Genoa | 10.1936 | 23.1.1938 | 5.1938 | sunk 20.10.1941 | Alcione group | |
Alcione | AC | Ansaldo, Genoa | 10.1936 | 23.12.1937 | 5.1938 | sunk 11.12.1941 | Alcione group | |
Aretusa | AU, 1953- F556 | Ansaldo, Genoa | 10.1936 | 6.2.1938 | 7.1938 | discarded 8.1958 | Alcione group | |
Ariel | AE | Ansaldo, Genoa | 10.1936 | 14.3.1938 | 7.1938 | sunk 12.10.1940 | Alcione group | |
Calipso | CI | Ansaldo, Genoa | 9.1937 | 12.6.1938 | 11.1938 | sunk 5.12.1940 | Alcione group | |
Calliope | CP, 1953- F551 | Ansaldo, Genoa | 5.1937 | 15.4.1938 | 10.1938 | discarded 8.1958 | Alcione group | |
Circe | CC | Ansaldo, Genoa | 9.1937 | 29.6.1938 | 10.1938 | collision 27.11.1942 | Alcione group | |
Clio | CL, 1953- F555 | Ansaldo, Genoa | 10.1936 | 3.4.1938 | 10.1938 | discarded 10.1959 | Alcione group | |
Libra | LB, 1953- F552 | CNQ, Fiume | 12.1936 | 3.10.1937 | 1.1938 | discarded 4.1964 | Alcione group | |
Lince | LC | CNQ, Fiume | 12.1936 | 15.1.1938 | 4.1938 | sunk 28.8.1943 | Alcione group | |
Lira | LR | CNQ, Fiume | 12.1936 | 12.9.1937 | 1.1938 | scuttled 9.9.1943 | Alcione group | |
Lupo | LP, LU | CNQ, Fiume | 12.1936 | 7.11.1937 | 2.1938 | sunk 2.12.1942 | Alcione group | |
Pallade | PD | BSN, Napoli | 2.1937 | 19.12.1937 | 10.1938 | sunk 5.8.1943 | Alcione group | |
Partenope | PN | BSN, Napoli | 3.1937 | 27.2.1938 | 11.1938 | scuttled 11.9.1943 | Alcione group | |
Pleiadi | PL | BSN, Napoli | 1.1937 | 5.9.1937 | 7.1938 | damaged 13.10.1941, never repaired | Alcione group | |
Polluce | PC | BSN, Napoli | 2.1937 | 24.10.1937 | 8.1938 | sunk 4.9.1942 | Alcione group |
Displacement standard, t | Spica group: 638 Climene group: 780 Perseo group: 775 Alcione group: 785 |
---|---|
Displacement full, t | Spica group: 885 Climene group: 995 Perseo group: 1005 Alcione group: 1035 |
Length, m | Spica group, Canopo, Cassiopea, Perseo, Sagittario, Sirio, Vega, Alcione group: 75.0 pp 80.4 oa others: 75.0 pp 82.0 oa |
Breadth, m | Spica, Climene, Perseo groups: 8.20 Alcione group: 7.92 |
Draught, m | 2.83 - 3.09 |
No of shafts | 2 |
Machinery | 2 sets Tosi geared steam turbines, 2 Yarrow boilers |
Power, h. p. | 19000 |
Max speed, kts | 34 |
Fuel, t | oil 207 |
Endurance, nm(kts) | 1900 - 1960(15) |
Armament | Spica group: 3 x 1 - 100/47 OTO 1931, 2 x 2 - 40/39 Vickers-Terni 1917, 2 x 2 - 13.2/76, 4 x 1 - 450 TT, 2 DCT, 18 - 28 mines Climene group except Centauro and Climene: 3 x 1 - 100/47 OTO 1931, 4 x 2 - 13.2/76, 4 x 1 - 450 TT, 2 DCT, 18 - 28 mines Centauro, Climene: 3 x 1 - 100/47 OTO 1931, 4 x 2 - 13.2/76, 1 x 2 - 450 TT, 2 x 1 - 450 TT, 2 DCT, 18 - 28 mines Perseo group: 3 x 1 - 100/47 OTO 1931, 4 x 2 - 13.2/76, 2 x 2 - 450 TT, 2 DCT, 18 - 28 mines Alcione group except Libra, Lince, Lira, Lupo: 3 x 1 - 100/47 OTO 1937, 4 x 2 - 13.2/76, 2 x 2 - 450 TT, 2 DCT, 18 - 28 mines Libra, Lince, Lira, Lupo: 3 x 1 - 100/47 OTO 1937, 4 x 2 - 13.2/76, 4 x 1 - 450 TT, 2 DCT, 18 - 28 mines |
Complement | 99 |
In the early thirties for replacement of out-of-date torpedo boats the decision to build a series of new ships of such type was accepted, thus their standard displacement was limited by 600t. It allowed to take advantage of an opening in total documents of the London Naval Conference of 1930 according to which the ships with displacement under 600t did not fall under limitations and could be built in any number. According to naval shipbuilding experts, to create something except coastal torpedo boat with low seaworthiness and low endurance, it was impossible. For Italy, whose interests have been centred on Mediterranean sea with its rather small distances and good weather conditions, the endurance and seaworthiness paled into insignificance. It is clear to use desire of Italians this opening for the renewal torpedo fleets, not spending on it precious contractual tonnage and having left it on rigorous destroyers.
It is interesting, that determination to build the 600t ships had, besides economic also political underlying reason as Italy, after France, did not ratify total documents of the London conference and formally had the full right not to follow any limitations.
First two torpedo boats laid down in 1933 structurally presented strongly moderated version of Freccia class destroyer with 100mm main guns and 450mm torpedoes. In total 32 ships were completed differing from each other by an arrangement of torpedo banks. On trials many have exceeded 37kts, however, after commission speed was significantly decreased at the expense of overload (to 630-670t design standard displacement it was added from 115-150t) and has averaged 30kts.
Successful from the point of view of an applied naval architecture design of 600t torpedo boat at the same time had doubtful practical value as approached for the decision of the majority of the tasks facing destroyer a little. For operations against enemy destroyers she has been too small and poorly armed. For torpedo attacks on enemy surface ships on the contrary, she was too large and had in side salvo only 2-4 weak 450mm torpedoes. Much in larger degree 600t torpedo boats approached for patrol and escort services, but also in this case their anti-aircraft and anti-submarine armaments were too weak.
1939 - 1941, all survived: were armed with 3 x 1 - 100/47 OTO 1931/1937, 3 x 2 - 20/65 Breda 1935, 1 x 2 - 13.2/76, 2 x 2 - 450 TT, 2 DCT, 18 - 28 mines, hydrophone
1941 - 1942, all survived: + 2 DCT (40 DC at all)
1942 - 1943, all survived: - 1 x 2 - 13.2/76; + 4 x 1 - 20/70 Scotti-Isotta Fraschini 1939
early 1950s, all survived: + radars, sonar
1952, Cassiopea: - 2 x 2 - 450 TT; + 1 x 24 - 178 Hedgehog Mk 10 ASWRL
1952, Sirio: - 2 x 1 - 100/47, 2 x 2 - 450 TT; + 1 x 24 - 178 Hedgehog MK 10 ASWRL
1952, Clio, Libra; 1953, Aretusa, Calliope: - 1 x 1 - 100/47, 2 x 2 - 450 TT; + 1 x 24 - 178 Hedgehog Mk 10 ASWRL
1958, Sirio: - 1 x 1 - 100/47; + 2 x 1 - 40/60 Mk 3
1958, Clio, Libra, Aretusa, Calliope: - 2 x 1 - 100/47; + 2 x 1 - 40/60 Mk 3
Airone and Ariel 12.10.1940 were sunk by British cruiser Ajax E off Malta. Calipso 5.12.1940 was sunk on mines laid by British submarine Rorqual E off Tripoli. Andromeda 18.3.1941 was sunk by British aircraft at coast of Albania. Canopo was sunk 3.5.1941 by British aircraft at Tripoli. Pleiadi 31.5.1941 was wrongly damaged by Italian aircraft at Tobruk, towed off to Tripoli, 13.10.1941 hard damaged by British aircraft and was not repaired. Aldebaran and Altair 20.10.1941 were sunk by mines laid by British submarine Rorqual off Piraeus. Alcione 11.12.1941 was sunk by British submarine Truant N off Crete. Vega 10.1.1942 was damaged by gunfire of British cruiser Bonaventure off Pantelleria and sunk by a torpedo from British destroyer Hereward. Polluce 4.9.1942 was sunk by British aircraft N off Tobruk. Centauro 4.11.1942 was sunk by American aircraft at Bengasi. Circe 27.11.1942 was sunk at collision with auxiliary cruiser Citta di Tunisi at Sicily. Lupo 2.12.1942 was sunk by British cruisers Aurora, Argonaut and Sirius off Kirkenah. Cigno 16.4.1943 was sunk by gunfire and torpedoes of British destroyers Paladin and Pakenham W off Sicily. Climene 28.4.1943 was sunk by British submarine Unshaken W off Sicily. Perseo 4.5.1943 was sunk by British destroyers Nubian, Paladin and Petard at coast of Tunisia. Antares 28.5.1943 was sunk as result of American air raid to Leghorn. Castore was sunk 2.6.1943 by gunfire of British destroyer Jervis and Greek Vasilissa Olga off Calabria. Lince 4.8.1943 ran aground at Taranto and 28.8.1943 was finished by British submarine Ultor. Pallade 5.8.1943 was sunk by American aircraft at Naples. Lira was captured by German troops in September, 1943, renamed TA49 and sunk 4.11.1944 by Allied aircraft at La Spezia. Partenope was captured by German troops in September, 1943 and 11.9.1943 blown up at Naples.
Some ships after war were modernised as fast corvettes: Cassiopea (1950-1952), Sirio (1951-1952), Aretusa (1952-1953), Calliope (1952-1953), Clio (1951-1952), Libra (1950-1952). Sagittario in 1952-1953 was converted to armament trials ship.