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Forum: Seamanship & Boat Handling

20-09-2018, 16:28

Replies: 221

Boat sinks in The Northwest Passage

Views: 27,594

Posted By Snowpetrel

Re: Boat sinks in The Northwest Passage

Thanks for your kind words, I am glad you enjoyed the book. My father writes much better than I do!

Pack ice is nasty stuff, I saw the damage to the aluminum 60 footer Spirit of Sydney when she...

Forum: Seamanship & Boat Handling

11-09-2018, 01:39

Replies: 221

Boat sinks in The Northwest Passage

Views: 27,594

Posted By Snowpetrel

Re: Boat sinks in The Northwest Passage

Interesting, thanks. The double ended icebreaking capacity would be very useful. As in heavy ice you spend nearly as much time going backwards as forwards, trying to get a run up at the the thicker...

Forum: Seamanship & Boat Handling

10-09-2018, 22:30

Replies: 221

Boat sinks in The Northwest Passage

Views: 27,594

Posted By Snowpetrel

Re: Boat sinks in The Northwest Passage

https://www.antarctica.gov.au/magazine/2016-2020/issue-34-june-2018/icebreaker/ship-of-steel

I am not sure what the current grades are, but this is interesting.
...

Forum: Seamanship & Boat Handling

10-09-2018, 15:24

Replies: 221

Boat sinks in The Northwest Passage

Views: 27,594

Posted By Snowpetrel

Re: Boat sinks in The Northwest Passage

It's not as cut and dry as that, different grades of steel perform very differently in cold conditions, and it's not a sudden dropoff but a slower degradation, typically in notch toughness. Certainly...

Forum: Seamanship & Boat Handling

31-08-2018, 16:39

Replies: 221

Boat sinks in The Northwest Passage

Views: 27,594

Posted By Snowpetrel

Re: Boat sinks in The Northwest Passage

It's the other way around. Steel becomes brittle, Alloy much less so.

I'd like to know how she got holed. Possibly rudder or prop damage?

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