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Old 02-16-2019, 07:00 PM   #175
SeahorseMarineDD54201
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City: Zhuhai
Join Date: Jun 2018
Posts: 71
Quote:
Originally Posted by CPAY View Post
Hello SeahorseMarineDD54201

My name is Philip and I am from HONG KONG.

I would like to know have you talked with ship yards in Hong Kong about this problems and the potential reasons that caused the problem?
As stated in Post #1 Item 4, Seahorse engaged a Hong Kong sub-contract yard to replace the full size 3 blade max prop with a half powered 4 blade fixed prop for trouble shooting trial purpose. An additional Whip Bearing was also inserted from the prop end (Post #13).

During the sea trial and dry docking, the sub-contractor tossed up the possibility of prop blade clearance, damaged Cutlass Bearing, and panting, and in the end said these should not have been the problem. The sub-contractor did not think the shaft was too thin. However he did say as good practice, they never use Chinese made shafts, and recalled a case where a vibrating boat (not a Seahorse) was fixed after replacing the shaft with one made in Japan.

George Buehler later without being told of this, also suggested to change the shaft to a name brand (see Post #1 Item 5).
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