D/S Portmar

Other names
Centaurus
Call sign
KOPZ
Shipping company
Nationality
USA flaggUSA
Home port

Shipyard

Name
Build year
1919
Yard number
38
Month of delivery
Desember

Other

  • Participant in WW2
  • Torpedoed, 16.6.1943
  • Civilian ship

Tonnage

Gross tonnage:
5.551
Net tonnage:
3.418
Deadweight:
8.600

Engine

Propulsion:
Engine size:
582 NHP
Speed:
11,5

Dimensions

Length:
409.8'
Beam:
54.2'
Draft:
27.7'
  • Historikk:
    v/Einar Ottarsen Onsøien

    12.1919: Levert til Green Star SS Corp, New York, USA - CENTAURUS,
    /1921: Overtatt av Nafra Co Inc, New York, USA,
    /1923: Til Planet SS Corp, New York, USA,
    /1930: Til Calmar SS Corp (Bethlehem Steel), New York, USA - PORTMAR
    In late 1941, Portmar was chartered by the United States Department of War to carry supplies to the Philippines but due to the Japanese invasion of the Philippines was retained in Australia. She was used in February 1942 to carry reinforcements from Darwin for the defenders of Timor prior to the Japanese invasion. The reinforcement convoy was shadowed by Japanese planes and attacked, forcing its cancellation. Portmar returned to Darwin on 18 February, and was still in harbour the next day when Japanese carrier-based aircraft attacked the city in the first ever attack on Australia. The ship was heavily damaged, and run aground to prevent sinking.

    Portmar was later refloated, towed to Sydney, repaired, purchased by the United States Army and put back into service as an Army transport. In June 1943, she sailed as part of convoy GP55. On 15 June, off Smoky CapePortmar and the landing ship LST-469 were torpedoed by the Japanese submarine I-174. Due to a highly volatile cargo, Portmar was abandoned and sank in less than ten minutes. She was the last ship lost to the Japanese submarine campaign in Australian waters.



    Maskineri:
    Trippel dampmaskin, 3 sylindere diam. 24 1/2", 41 1/2" & 72"-48".
    Maskineri bygget ved Hooven, Owens & Rentschler, Oh. USA.

    Se også:
    american ship sunk ww2 Portmar

    Sources

    Lloyd's Register, diverse årganger,

    Miramarshipindexnz

    https://en.wikipedia.org/wiki/SS_Portmar_(1919)