Re: PM review on Amazon


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Posted by Tom Napier on March 04, 2010 at 18:39:32 user Didymus.

In Reply to: Re: PM review on Amazon posted by Andrew Craig-Bennett on March 04, 2010 at 14:35:05:

The mistake was Jim Brading's, not Ransome's. Jim didn't look ahead at what the consequences of a delay might be. It's like leaving your car for a ten minute errand and only putting money for ten minutes in the meter. A ticket is much more expensive than buying a reserve of time.
If one assumes a 12 foot tidal range and supposes that the Goblin is still on the Shelf when John notices the anchor dragging, one can calculate the original scope. John sees that the chain is hanging straight down and is just bumping the bottom. He says that the water is over twice its original depth.
From this we can deduce that at low tide the Goblin was in no more than 12 feet of water. It is unlikely that Jim would have taken her into less than six feet, her draft must be three or four. Anchoring in six feet his scope was 3:1 which is borderline. If he had anchored in 12 feet the scope was 2:1. I haven't done a more exact calculation which would take the Goblin's freeboard into account.
Incidentally, the picture JIM ROWED AWAY shows a distinct absence of obstructions around the Goblin.




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