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http://www.youtube.com/watch?v=Ig8ilsiloVE
Fascinating when a good wind blows like the last couple of days.
Thomas
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> http://www.youtube.com/watch?v=Ig8ilsiloVE
>
> Fascinating when a good wind blows like the last couple of days.
>
> Thomas
Two questions:
1 - What are the big planks on the sides of the boats? Are they
daggerboards? and if so, why are they on the sides of the boat, rather
than on the center of the hull?
2 - Why is there a guy repeatedly sticking a pole in the water at the
1:44 mark (approx.) Is he checking the water depth? Trying to paddle to
make his boat go faster? Spear-fishing for dinner?
Ok. that was more than two questions.
Nice video. Now I want ot go windsurfing again. sniff.
--
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Am 31.07.2014 23:05, schrieb Francois Labreque:
>> http://www.youtube.com/watch?v=Ig8ilsiloVE
>>
>> Fascinating when a good wind blows like the last couple of days.
>>
>> Thomas
> Two questions:
> 1 - What are the big planks on the sides of the boats? Are they
> daggerboards? and if so, why are they on the sides of the boat, rather
> than on the center of the hull?
Why should they be on the center? They work just as fine at the sides.
With the added avantage of not having to cut a gaping hole right into
the bottom of the wooden hull :-P
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On 31/07/14 22:05, Francois Labreque wrote:
> Two questions:
> 1 - What are the big planks on the sides of the boats? Are they
> daggerboards? and if so, why are they on the sides of the boat, rather
> than on the center of the hull?
>
IIRC those are called (in English) leeboards. The boats look much like
Thames sailing barges with some differences. The leeboards have much the
same effect as daggerboards but having two (one either side of the
barge), independently controlled, facilitates sharp turns. Remember
these are (or were) working vessels and often worked in close proximity
to one another.
> 2 - Why is there a guy repeatedly sticking a pole in the water at the
> 1:44 mark (approx.) Is he checking the water depth? Trying to paddle to
> make his boat go faster? Spear-fishing for dinner?
>
Didn't see that. What I saw was a crewman using a pole to adjust the
foresail. Are you sure you got the timestamp right?
John
--
Protect the Earth
It was not given to you by your parents
You hold it in trust for your children
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On 31/07/14 22:34, Doctor John wrote:
> IIRC those are called (in English) leeboards. The boats look much like
> Thames sailing barges with some differences. The leeboards have much the
> same effect as daggerboards but having two (one either side of the
> barge), independently controlled, facilitates sharp turns. Remember
> these are (or were) working vessels and often worked in close proximity
> to one another.
>
just thought of another reason. The barges used tidal waters. If you
were above the low-water mark when the tide went out, the barge would
settle on the mud and then list over to one side or the other. If you
lowered both leeboards, they would help to keep her upright and thus
prevent the shifting of cargo.
John
--
Protect the Earth
It was not given to you by your parents
You hold it in trust for your children
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On 31/07/14 22:34, Doctor John wrote:
>
> Didn't see that. What I saw was a crewman using a pole to adjust the
> foresail. Are you sure you got the timestamp right?
>
OK I have just watched three times more. At ~1.30 I see what you're
referring to. My best bet is that he's using a boat-hook to grab a sheet
or other part of the running rigging that's fallen in the water. Either
that or he's washing off the blood having accidentally brained a fellow
crewman.
John
--
Protect the Earth
It was not given to you by your parents
You hold it in trust for your children
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>Either
> that or he's washing off the blood having accidentally brained a fellow
> crewman.
I hate it when that happens!
On a more serious note, it happens at:
0:33-0:34
1:19-1:23
1:24-1:27
1:35-1:36
1:38-1:40
1:42-1:44
2:09-2:14
2:16-2:17
etc...
Basically any time we see the leeward side of the boat, there'll be one
guy spalshing a pole in the water, so I guess we can rule out trying to
wash the blood off the pole. If it was that violent, we'd have heard
about it!
--
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> Am 31.07.2014 23:05, schrieb Francois Labreque:
>>> http://www.youtube.com/watch?v=Ig8ilsiloVE
>>>
>>> Fascinating when a good wind blows like the last couple of days.
>>>
>>> Thomas
>> Two questions:
>> 1 - What are the big planks on the sides of the boats? Are they
>> daggerboards? and if so, why are they on the sides of the boat, rather
>> than on the center of the hull?
>
> Why should they be on the center? They work just as fine at the sides.
> With the added avantage of not having to cut a gaping hole right into
> the bottom of the wooden hull :-P
>
I figure that having an essential part of your boat out there in the
open where it can easily get caught on other boats, floating
tree-trunks, etc, would be a disadvantage, especially if these boats are
made for navigation in crowded waters, as Dr. John mentions.
Also, I've sailed boats from 3m-long Optimists, to 50m long sea-going
cats that had no problem with the gaping hole in the middle of the hull. ;)
--
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
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> On 31/07/14 22:34, Doctor John wrote:
>> IIRC those are called (in English) leeboards. The boats look much like
>> Thames sailing barges with some differences. The leeboards have much the
>> same effect as daggerboards but having two (one either side of the
>> barge), independently controlled, facilitates sharp turns. Remember
>> these are (or were) working vessels and often worked in close proximity
>> to one another.
>>
>
> just thought of another reason. The barges used tidal waters. If you
> were above the low-water mark when the tide went out, the barge would
> settle on the mud and then list over to one side or the other. If you
> lowered both leeboards, they would help to keep her upright and thus
> prevent the shifting of cargo.
>
> John
>
This makes sense.
--
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
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Am 01.08.2014 03:01, schrieb Francois Labreque:
>> Am 31.07.2014 23:05, schrieb Francois Labreque:
>>>> http://www.youtube.com/watch?v=Ig8ilsiloVE
>>>>
>>>> Fascinating when a good wind blows like the last couple of days.
>>>>
>>>> Thomas
>>> Two questions:
>>> 1 - What are the big planks on the sides of the boats? Are they
>>> daggerboards? and if so, why are they on the sides of the boat, rather
>>> than on the center of the hull?
>>
>> Why should they be on the center? They work just as fine at the sides.
>> With the added avantage of not having to cut a gaping hole right into
>> the bottom of the wooden hull :-P
>>
> I figure that having an essential part of your boat out there in the
> open where it can easily get caught on other boats, floating
> tree-trunks, etc, would be a disadvantage, especially if these boats are
> made for navigation in crowded waters, as Dr. John mentions.
You'd raise them when getting so close to other vessels that you expect
close contact (which would essentially be in the harbour only; mind, the
idea in crowded waters is generally to steer clear enough to /not/ make
contact at all ;-)), and you'd also have fenders dangling down the side
of the ship in such conditions.
> Also, I've sailed boats from 3m-long Optimists, to 50m long sea-going
> cats that had no problem with the gaping hole in the middle of the hull. ;)
I guess those weren't the traditional wooden-hull type, were they?
A hole in the hull is no problem if its upper opening lies above sea
level, but achieving that with a wooden construction is pretty
challenging. Aside from providing additional surface and edges for water
to potentially leak through, it would also be a structural problem. All
in all, maybe it wouldn't be impossible, but just too much of a hassle,
and mounting the daggerboards at the sides is certainly a far more
practical solution for this type of ships.
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