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Old 02-10-2018, 12:38   #1
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Term for a floating log

What is the term for a floating log?

PS I am not referring to flotsam, which is a generic term for any kind of floating debris. There is a specific term for floating logs or planks as nautical hazards. I heard a commercial captain use the word on 16 once, but I forgot what it was.
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Old 02-10-2018, 12:43   #2
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Re: Term for a floating log

OH $Hit!
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Old 02-10-2018, 12:44   #3
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Re: Term for a floating log

Not sure if this is actually what you're referring to, but a partially submerged lot, floating more or less vertically, is called a deadhead. Also, there are logjams that get away from whatever's towing them. Sorry, I do not know of a term for planks as nautical hazards, but maybe somebody else here does.....

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Old 02-10-2018, 12:45   #4
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Re: Term for a floating log

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Not sure if this is actually what you're referring to, but a partially submerged lot, floating more or less vertically, is called a deadhead. Also, there are logjams that get away from whatever's towing them. Sorry, I do not know of a term for planks as nautical hazards, but maybe somebody else here does.....

Ann
Yep, I think that was it. Thanks very much.
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Old 02-10-2018, 13:26   #5
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Re: Term for a floating log

A straight whale.
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Old 02-10-2018, 13:31   #6
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Re: Term for a floating log

If you have good insurance, it is called a floating submerged object!
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Old 02-10-2018, 13:53   #7
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Re: Term for a floating log

***king Deadhead


One caught me just last month.
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Old 02-10-2018, 13:56   #8
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Re: Term for a floating log

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OH $Hit!
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Old 02-10-2018, 14:00   #9
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Re: Term for a floating log

I hit a deadhead a number of years ago. I was in a planing boat doing about 23 kts in over 100 ft (30M) of water. It put a small tear in a SS prop and sheared the upper gears of the outdrive. It was completely underwater, I never even saw it.
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Old 02-10-2018, 14:14   #10
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Re: Term for a floating log

To me a dead head is a partially or mostly submerged log. But maybe it's just a log. We have a lot of them up here in the PNW.
When I hear "deadhead" , I always think of one's I've seen that for some reason are submerged in a vertical position and ramming up and down out of the surface a few feet... for some reason all on their own!
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Old 02-10-2018, 14:50   #11
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Term for a floating log

Correct, deadheads are vertically oriented and deadly due to being almost totally submerged, with as little as a single cm above the water (well, bobbing above and then below the surface). I donít believe they can still float with nothing above the water as in that case they wouldnít have positive flotation and would sink.

The reason they float low and vertically is that theyíre fully waterlogged and the end closer to the bottom of the tree is denser.

Horizontally floating logs are floaters. That term also refers to drowned bodies.

In both cases (deadheads and floaters (logs)) they are usually (in the PNW) escapees from log booms and coastal log sorts.

Iíve known one boat, a C&C 41 back in the late Ď80s, that hit a deadhead while motoring at night in the Juan de Fuca straight just off Port Angeles on the return delivery after a Vic-Maui. She sank within 2 minutes and while a crew member was hand steering they didnít see what they hit until they were in the water. A handheld VHF saved them.
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Old 02-10-2018, 16:07   #12
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Re: Term for a floating log

Kayak, also known as a speed bump
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Old 03-10-2018, 12:03   #13
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Re: Term for a floating log

They can porpoise FEET out of the water. On a calm day my dad saw one out of the corner of his eye, before it submerged. We waited about 20 mins or so before it came back up, about 6 feet out of the water, and was about 4 feet in diameter. No idea on the length, but certainly over 30 feet long. Just imagine the inertia that would have. One big hole in a boat for sure.
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Old 03-10-2018, 12:19   #14
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Re: Term for a floating log

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They can porpoise FEET out of the water. On a calm day my dad saw one out of the corner of his eye, before it submerged. We waited about 20 mins or so before it came back up, about 6 feet out of the water, and was about 4 feet in diameter. No idea on the length, but certainly over 30 feet long. Just imagine the inertia that would have. One big hole in a boat for sure.
Yep, I one a few years ago. It seemed to pop out of nowhere. a true deadhead (vertical). It disappeared for a few minutes, then popped up again about 40 yards away, then disappeared. We were drift fishing, so we fired up and moved about 1/2 mile in the opposite direction the dead head was moving.
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Old 03-10-2018, 12:22   #15
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Re: Term for a floating log

Agree, deadhead is the common term for a mostly submerged floating log. They can be very large and bobbing very slowly as others have described. The other term we use around here is snag. That is generally the term for a mostly sunken log or tree in shallower water where one end rests on the bottom and the other end is barely at the surface. Typically the end at the surface faces downstream as they are oriented by the current. As you can imagine, hitting one going upstream can do considerable damage. Very difficult to see if there is some ripple or wavelets on the water. In the summer good Samaritans often tie a milk jug to snags in commonly used waterways to warn other boaters.
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