Weighting twin 12's

Gav · September 15th, 2008, 09:50 PM

I have twin 12 Euro cylinders and having conducted various experiments on my Fundies course the following conclusions were drawn: -

1). I am naturally bottom heavy and therefore do not need my 2kg tail weight.

2). I need to carry 3kg in weight for fresh water and 6kg in weight for sea diving. (I was using 2kg and 5kg respectively, but we found I'm actually slightly underweight).

I used to distribute the weight as the 2kg tail weight plus 3 1kg V weights for the sea and that fitted fine.

However, I can't fit 6kg in V weights between the cylinders. I could use 4 plus the tail weight but I'd be bum heavy again(?)

I would rather keep weight on the rig and not use a weight belt, so any ideas?

wilbo · September 15th, 2008, 09:59 PM

Quote: (Originally Posted by Gav)

I have twin 12 Euro cylinders and having conducted various experiments on my Fundies course the following conclusions were drawn: -

1). I am naturally bottom heavy and therefore do not need my 2kg tail weight.

2). I need to carry 3kg in weight for fresh water and 6kg in weight for sea diving. (I was using 2kg and 5kg respectively, but we found I'm actually slightly underweight).

I used to distribute the weight as the 2kg tail weight plus 3 1kg V weights for the sea and that fitted fine.

However, I can't fit 6kg in V weights between the cylinders. I could use 4 plus the tail weight but I'd be bum heavy again(?)

I would rather keep weight on the rig and not use a weight belt, so any ideas?

dead simple:

3 KG V weights - you have these already.
buy or make a P weight (they come in around 2.5 to 3kg) - which sits *in front* of the plate in the groove and it secured by the bolts and wingnuts.

sorted. 6 kg for sea and remove p weight or vweights for fresh.

Gav · September 15th, 2008, 10:08 PM

Cheers Wilbo!

Marijn · September 16th, 2008, 09:57 AM

Quote: (Originally Posted by wilbo)

dead simple:

3 KG V weights - you have these already.
buy or make a P weight (they come in around 2.5 to 3kg) - which sits *in front* of the plate in the groove and it secured by the bolts and wingnuts.

sorted. 6 kg for sea and remove p weight or vweights for fresh.

6mm backplate, no lead in fresh water and a 3Kg V-weight in the sea.
Even simpler

wilbo · September 16th, 2008, 10:28 AM

Quote: (Originally Posted by Marijn)

6mm backplate, no lead in fresh water and a 3Kg V-weight in the sea.
Even simpler

very very true..

I was just working with the backplate he already has and the lead he already has.. - simpler and cheaper..

:p

***Fiona*** · September 16th, 2008, 10:37 AM

Quote: (Originally Posted by wilbo)

I was just working with the backplate he already has and the lead he already has.. - simpler and cheaper..

:p

The cost of lead seems to be rocketing, soon there won't be much difference in price.

I was in my LDS last week and a lady came in who had "lost" her weight belt, (passing it up to a RIB) a new belt and weights were over a £100

Those were the days it was about £1 per lb when I first bought mine

wilbo · September 16th, 2008, 10:43 AM

Quote: (Originally Posted by Fiona)

The cost of lead seems to be rocketing, soon there won't be much difference in price.

I was in my LDS last week and a lady came in who had "lost" her weight belt, (passing it up to a RIB) a new belt and weights were over a £100

Those were the days it was about £1 per lb when I first bought mine

just go down to the local pub and buy the church's lead flashing off the local scally*.

I know what you mean.. It actually makes more sense to melt down and reform lead you already own than to buy new.. Looks like alchemy wouldn't have been so profitable after all..

* I'm kidding..

***Fiona*** · September 16th, 2008, 11:17 AM

Quote: (Originally Posted by wilbo)

just go down to the local pub and buy the church's lead flashing off the local scally*.

* I'm kidding..

Good - when I was working for the Insurance management company I couldn't believe the number of claims for missing lead which had a huge cost associated with it and distressing for the owner.

Marijn · September 16th, 2008, 11:58 AM

Quote: (Originally Posted by wilbo)

very very true..

I was just working with the backplate he already has and the lead he already has.. - simpler and cheaper..

:p

Ok, a good solution.
Although i'm mildly sceptical about fitting 3Kg's of lead between the plate and your back. Its sounds like an awfull lot considering the size of a 2Kg V-weight I have.

Come to think of it, Lets start searching for some heavier tanks, like 16Kg a piece

NickB · September 16th, 2008, 01:17 PM

Quote: (Originally Posted by Marijn)

Although i'm mildly sceptical about fitting 3Kg's of lead between the plate and your back. Its sounds like an awfull lot considering the size of a 2Kg V-weight I have.

Don't forget that a P-weight can fill the whole length of the backplate groove (almost), whereas a V-weight has to fit in the much shorter gap between the bands.

I have two: a 2kg for fresh water and a 4kg for the sea.

There's an image of the 2kg weight in this thread. It's quite small. I reckon I could make a 5kg P-weight to fit in a Halcyon backplate without too much trouble.

September 15th, 2008, 09:50 PM	#1 (permalink)
Gav(Offline) New Member Join Date: Jan 2007 Location: UK Posts: 108	Weighting twin 12's I have twin 12 Euro cylinders and having conducted various experiments on my Fundies course the following conclusions were drawn: - 1). I am naturally bottom heavy and therefore do not need my 2kg tail weight. 2). I need to carry 3kg in weight for fresh water and 6kg in weight for sea diving. (I was using 2kg and 5kg respectively, but we found I'm actually slightly underweight). I used to distribute the weight as the 2kg tail weight plus 3 1kg V weights for the sea and that fitted fine. However, I can't fit 6kg in V weights between the cylinders. I could use 4 plus the tail weight but I'd be bum heavy again(?) I would rather keep weight on the rig and not use a weight belt, so any ideas?

September 15th, 2008, 09:59 PM	#2 (permalink)
wilbo(Offline) Chimp 4 Join Date: Nov 2005 Location: Swindon, UK Posts: 872	Quote: (Originally Posted by Gav) I have twin 12 Euro cylinders and having conducted various experiments on my Fundies course the following conclusions were drawn: - 1). I am naturally bottom heavy and therefore do not need my 2kg tail weight. 2). I need to carry 3kg in weight for fresh water and 6kg in weight for sea diving. (I was using 2kg and 5kg respectively, but we found I'm actually slightly underweight). I used to distribute the weight as the 2kg tail weight plus 3 1kg V weights for the sea and that fitted fine. However, I can't fit 6kg in V weights between the cylinders. I could use 4 plus the tail weight but I'd be bum heavy again(?) I would rather keep weight on the rig and not use a weight belt, so any ideas? dead simple: 3 KG V weights - you have these already. buy or make a P weight (they come in around 2.5 to 3kg) - which sits in front of the plate in the groove and it secured by the bolts and wingnuts. sorted. 6 kg for sea and remove p weight or vweights for fresh. __________________ Cheers! Wilbo DIR explorers: DIR Yorkshire Divers: YorkshireDivers One of the Foxturd chimps

September 16th, 2008, 09:57 AM	#4 (permalink)
Marijn (Online) Smurf #1 Join Date: Aug 2007 Location: Papendrecht, The Netherlands Posts: 379	Quote: (Originally Posted by wilbo) dead simple: 3 KG V weights - you have these already. buy or make a P weight (they come in around 2.5 to 3kg) - which sits in front of the plate in the groove and it secured by the bolts and wingnuts. sorted. 6 kg for sea and remove p weight or vweights for fresh. 6mm backplate, no lead in fresh water and a 3Kg V-weight in the sea. Even simpler __________________ Its a fact that the humans can't go without water for more than 3 days

September 16th, 2008, 10:28 AM	#5 (permalink)
wilbo(Offline) Chimp 4 Join Date: Nov 2005 Location: Swindon, UK Posts: 872	Quote: (Originally Posted by Marijn) 6mm backplate, no lead in fresh water and a 3Kg V-weight in the sea. Even simpler very very true.. I was just working with the backplate he already has and the lead he already has.. - simpler and cheaper.. :p __________________ Cheers! Wilbo DIR explorers: DIR Yorkshire Divers: YorkshireDivers One of the Foxturd chimps

September 16th, 2008, 10:37 AM	#6 (permalink)
*Fiona*(Offline) Moderator Join Date: Sep 2006 Location: Up North Posts: 1,202	Quote: (Originally Posted by wilbo) I was just working with the backplate he already has and the lead he already has.. - simpler and cheaper.. :p The cost of lead seems to be rocketing, soon there won't be much difference in price. I was in my LDS last week and a lady came in who had "lost" her weight belt, (passing it up to a RIB) a new belt and weights were over a £100 Those were the days it was about £1 per lb when I first bought mine __________________ Fiona Resistance was Futile Move Along YD GUE Member

September 15th, 2008, 10:08 PM	#3 (permalink)
Gav(Offline) New Member Join Date: Jan 2007 Location: UK Posts: 108	Cheers Wilbo!

September 16th, 2008, 10:43 AM	#7 (permalink)
wilbo(Offline) Chimp 4 Join Date: Nov 2005 Location: Swindon, UK Posts: 872	Quote: (Originally Posted by Fiona) The cost of lead seems to be rocketing, soon there won't be much difference in price. I was in my LDS last week and a lady came in who had "lost" her weight belt, (passing it up to a RIB) a new belt and weights were over a £100 Those were the days it was about £1 per lb when I first bought mine just go down to the local pub and buy the church's lead flashing off the local scally. I know what you mean.. It actually makes more sense to melt down and reform lead you already own than to buy new.. Looks like alchemy wouldn't have been so profitable after all.. I'm kidding.. __________________ Cheers! Wilbo DIR explorers: DIR Yorkshire Divers: YorkshireDivers One of the Foxturd chimps

September 16th, 2008, 11:17 AM	#8 (permalink)
*Fiona*(Offline) Moderator Join Date: Sep 2006 Location: Up North Posts: 1,202	Quote: (Originally Posted by wilbo) just go down to the local pub and buy the church's lead flashing off the local scally. I'm kidding.. Good - when I was working for the Insurance management company I couldn't believe the number of claims for missing lead which had a huge cost associated with it and distressing for the owner. __________________ Fiona Resistance was Futile Move Along YD GUE Member

September 16th, 2008, 11:58 AM	#9 (permalink)
Marijn (Online) Smurf #1 Join Date: Aug 2007 Location: Papendrecht, The Netherlands Posts: 379	Quote: (Originally Posted by wilbo) very very true.. I was just working with the backplate he already has and the lead he already has.. - simpler and cheaper.. :p Ok, a good solution. Although i'm mildly sceptical about fitting 3Kg's of lead between the plate and your back. Its sounds like an awfull lot considering the size of a 2Kg V-weight I have. Come to think of it, Lets start searching for some heavier tanks, like 16Kg a piece __________________ Its a fact that the humans can't go without water for more than 3 days

September 16th, 2008, 01:17 PM	#10 (permalink)
NickB(Offline) Always lowering the tone Join Date: Dec 2005 Location: Cardiff, UK Posts: 340	Quote: (Originally Posted by Marijn) Although i'm mildly sceptical about fitting 3Kg's of lead between the plate and your back. Its sounds like an awfull lot considering the size of a 2Kg V-weight I have. Don't forget that a P-weight can fill the whole length of the backplate groove (almost), whereas a V-weight has to fit in the much shorter gap between the bands. I have two: a 2kg for fresh water and a 4kg for the sea. There's an image of the 2kg weight in this thread. It's quite small. I reckon I could make a 5kg P-weight to fit in a Halcyon backplate without too much trouble. __________________ SnowHeads / BreastFriends / Free Money!