GRAND MESA號船底修理工事に就て

概要

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The vessel entered to No.1 dock on the 18th March for repair the bottom shell plates which had been damaged by grounding at Nojimazaki. At the first schedule, this was temporary job, but later changed to permanent repair and undocked on the 15th August. Meanwhile many troubles occurred by the reason of food shortage, material problem, all mechanical apparatus, D.C. machine and welding rod etc. By the way, we have got material and welders who passed qualification test under survey of A.B. surveyor, Mr. Swan. We preceded job under survey of Mr. Swan, and job was done by all welding and damaged area was 6,500 sq. ft. approximately, therefore this job is the first and biggest work in Japan post-war. I believe, we made a new record about tank water test because time is very short and very few leakage. The work was approved by A.B. surveyor Mr. Swan after completion of job.
社団法人日本船舶海洋工学会の論文