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Passing moored widebeams

MtB

By MtB
in General Boating

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blackrose Veteran II

blackrose

Posted
Posted
7 hours ago, Mike the Boilerman said:

Disappointing lack of technical analysis so far.

So given the higher mass of a widebeam, does the surge of a passing NB affect it as much?

No in my experience it doesn't affect a widebeam to the same extent. A widebeam doesn't roll like a narrowboat. I don't think a larger boat will move backwards and forwards as much either, but I might be wrong about that.

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blackrose Veteran II

blackrose

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Posted (edited)
2 hours ago, frangar said:

I want to know what happens when they meet themselves coming the other way on some parts of the GU as they seem to think they have a god given right to hog the cut! 

In fact your attitude is typical of those who think they have a god given right.

When we meet each other we carefully go past each other but why can't you stick to the subject?

Edited by blackrose
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NickF Rising Star

NickF

Posted
Posted
7 hours ago, Mike the Boilerman said:

Disappointing lack of technical analysis so far.

So given the higher mass of a widebeam, does the surge of a passing NB affect it as much?

Surely the surge would affect is just as much as an NB, as the flow of water is acting against a wider boat ...... effectively bigger push on a bigger boat would give the same surge effect as a smaller push on a smaller (narrow) boat.  That's my thought anyway.

 

As to rocking effect that must be less as the wider boat will not rock as much as a narrowboat.

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blackrose Veteran II

blackrose

Posted
Posted
1 minute ago, NickF said:

Surely the surge would affect is just as much as an NB, as the flow of water is acting against a wider boat ...... effectively bigger push on a bigger boat would give the same surge effect as a smaller push on a smaller (narrow) boat.  That's my thought anyway.

 

As to rocking effect that must be less as the wider boat will not rock as much as a narrowboat.

I think the surge is reduced on a widebeam too. A larger mass will require a greater force to move it. 

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NickF Rising Star

NickF

Posted
Posted (edited)
3 minutes ago, blackrose said:

I think the surge is reduced on a widebeam too. A larger mass will require a greater force to move it. 

I accept your experience is greater than mine as I don't have a widebeam. But my point was there is more force on it as it wider so more of the flowing water surge is pushing against it. I was however only guessing.

But as a river moorer, which I think you are,  may be surge effect is less than on a shallow canal.

 

At least MTB is getting a more technical discussion now so that should make him happy.

Edited by NickF
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blackrose Veteran II

blackrose

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Posted

I've moored on both rivers and canals. The worst surge I ever felt was on the Thames moored in deep water when a big passenger boat went past very fast. I'm not really sure about the surge - I just don't feel it quite as much as I used to on my narrowboat. But perhaps my mooring technique has improved since then!

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Robbo Veteran II

Robbo

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Posted (edited)

A small lighter boat is effected by the surge and wake more than a heavier boat.  If your boat is more prone to rock then it's more the weight distribution/design of the boat than if it's narrow or wide. A well moored boat will reduce the effect of the surge.

Edited by Robbo
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alan_fincher Veteran II

alan_fincher

Posted
Posted
3 hours ago, frangar said:

I want to know what happens when they meet themselves coming the other way on some parts of the GU as they seem to think they have a god given right to hog the cut! 

Strange, I had always read that it was us historic boat owners that assumed such a god given right!

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frangar Veteran II

frangar

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Posted
5 minutes ago, alan_fincher said:

Strange, I had always read that it was us historic boat owners that assumed such a god given right!

At least they are the correct craft for the waterway....it seems that just because they fit it a lock then it's assumed they are ok to use...I really hope CRT start charging them double plus some quite soon...

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frangar Veteran II

frangar

Posted
Posted
56 minutes ago, blackrose said:

In fact your attitude is typical of those who think they have a god given right.

When we meet each other we carefully go past each other but why can't you stick to the subject?

My point is there is quite a bit of the GU where physically they just couldn't pass each other....and if you think I'm going through the bushes or up on the mud cos your boat isn't suitable for the waterway then maybe I do think I have a right to the channel

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MtB Veteran II

MtBDonate to Canal World

Posted
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On 17/04/2017 at 07:47, NickF said:

Surely the surge would affect is just as much as an NB, as the flow of water is acting against a wider boat ...... effectively bigger push on a bigger boat would give the same surge effect as a smaller push on a smaller (narrow) boat.  That's my thought anyway.

 

As to rocking effect that must be less as the wider boat will not rock as much as a narrowboat.

 

To expand on my OP, logic suggests to me NickF would be right but I notice when passing widebeams on this narrow canal, they appear visually to be less affected by surge than a narrow boat.

So I wondered what widebeam owners thought and why this would be, if it is indeed the case.

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