Ο Κωνσταντινος Σ ηταν κορβεττα του Βρεττανικου ναυτικου με το ονομα Alisma που ηλθε στην Ελλαδα το 1949 και χρησιμοποιηθηκε για λιγο σαν βοηθητικο επιβατηγο. Αναφερεται επι παραδειγματι σαν ενα βοηθητικο που βοηθησε την εβδομαδα της 23ης Μαιου 1951 κανοντας την γραμμη Πειραιευς, Συρος, Ψαρρα, Χιος, Μυτιληνη, Αγιος Ευστρατιος, Λημνος, Αλεξανδρουπολις, Πορτο Λαγο, Καβαλα, Θεσσαλονικη
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Constantinos S was a passenger and cargo ship that started her career as the British corvette HMS Alisma (K185). She was built at Harland & Wolff in Belfast in 1941. She had 940 tons, a length of 62.6 m and a width of 10.1 m. Her service speed was 16 knots.
See also http://www.nautilia.gr/forum/showpos...87&postcount=2
IDNo: 6111605 Year: 1941
Name: ALISMA Launch Date: 17.12.40
Type: Patrol frigate Date of completion: 13.2.41
Flag: GBR Keel: 19.8.40
Tons: 940 Link: 1600
DWT: 1180 Yard No: 1096
Length overall: 62.6 Ship Design:
LPP: 57.9 Country of build: GBR
Beam: 10.1 Builder: Harland & Wolff
Material of build: Location of yard: Belfast
Number of screws/Mchy/ Speed(kn): 1T-16
Subsequent History: [O as PERTUISANE] - 48 LACONIA - 50 CONSTANTINE S. - 52 PARNON
Disposal Data: foundered 40.15N/13.20E 16.7.54 [Marseilles-Eleusis, ammonium sulphate]
Sh was sold in 1947 and resold in 1949 when she became Laconia. In 1950 she became Constantinos S, and in 1952 Parnon. She sunk July 16, 1954 on the way from Marseilles to Eleusis