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Roger View Drop Down
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    Posted: 25 Aug 16 at 9:20pm
Originally posted by Sam.Spoons

I have, today, more accurately weighed my Topper Spice (346, built by White Formula in, I think, 1998) and, all up, it weighs 152kg (+/- 2kg I'd say). That is 134kg for the hull and mast, with rigging, jib and kite onboard and 18kg for the other bits (mainsail, boom/mainsheet tackle daggerboard and rudder assembly). A disappointing 20kg more than I hoped. I guess my 'not entirely watertight' hull will have absorbed a little H2O over the years but I can't believe 20 litres. 

I also weighed my mate's L3k and arrived at 116kg (just to rub salt into the wound.....).

Might weigh a 'tin rig' Phantom tomorrow if my other mate will risk the embarrassment, and possibly a Topaz Trez. Then I plan to find a L@ser to weigh.......


Blimy those boats are heavy, a 505 has a sailing weight of 127.4kg, and that includes everything apart from the sails.
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Posts: 8956 		Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 16 at 9:19pm
Originally posted by Sam.Spoons


I have, today, more accurately weighed my Topper Spice (346, built by White Formula in, I think, 1998) and, all up, it weighs 152kg (+/- 2kg I'd say). That is 134kg for the hull and mast, with rigging, jib and kite onboard and 18kg for the other bits (mainsail, boom/mainsheet tackle daggerboard and rudder assembly). A disappointing 20kg more than I hoped. I guess my 'not entirely watertight' hull will have absorbed a little H2O over the years but I can't believe 20 litres. 
I also weighed my mate's L3k and arrived at 116kg (just to rub salt into the wound.....).
Might weigh a 'tin rig' Phantom tomorrow if my other mate will risk the embarrassment, and possibly a Topaz Trez. Then I plan to find a L@ser to weigh.......



I can easily believe 20kg for water in the lay up, as I've seen it in smaller boats before. Not sure how it is possible, or where exactly it hides.
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Posts: 177 		Post Options Post Options   Quote drifter Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 16 at 9:12pm
The last time my Graduate got weighed at the Nationals it was peeing with rain (Bala-anyone surprised?) and it was a fair bit overweight...I asked to see a certificate of calibration for the balance, and I was refused.

Classes that insist on dismantling the boat for weighing (Solo) need to take a long good look at themselves...
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Posts: 3011 		Post Options Post Options   Quote RS400atC Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 16 at 8:30pm
Originally posted by JimC

To my mind the main reason boat weights are so opaque is that its surprisingly troublesome to organise weighing a reasonable sample of boats accurately.

Not much point in getting tetchy about it.


The way they do it at a Merlin Nationals, it takes about a minute a boat.
Put boat + trolley on 3-point scales, push button. Lift boat to get trolley weight, push other button.
The answer BTW is 90-odd kg for a hull, centreboard and some of the string. But that includes a lot of lead.
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Posts: 3401 		Post Options Post Options   Quote Sam.Spoons Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 16 at 8:20pm
I have, today, more accurately weighed my Topper Spice (346, built by White Formula in, I think, 1998) and, all up, it weighs 152kg (+/- 2kg I'd say). That is 134kg for the hull and mast, with rigging, jib and kite onboard and 18kg for the other bits (mainsail, boom/mainsheet tackle daggerboard and rudder assembly). A disappointing 20kg more than I hoped. I guess my 'not entirely watertight' hull will have absorbed a little H2O over the years but I can't believe 20 litres. 

I also weighed my mate's L3k and arrived at 116kg (just to rub salt into the wound.....).

Might weigh a 'tin rig' Phantom tomorrow if my other mate will risk the embarrassment, and possibly a Topaz Trez. Then I plan to find a L@ser to weigh.......


Edited by Sam.Spoons - 25 Aug 16 at 8:20pm
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Posts: 715 		Post Options Post Options   Quote transient Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 16 at 3:32pm
Originally posted by JimC

To my mind the main reason boat weights are so opaque is that its surprisingly troublesome to organise weighing a reasonable sample of boats accurately.

Weighing at manufacture is easy. Specifying the weight on a website is even easier.
Hull weight, Fitted hull weight and all up weight please.

Not much point in getting tetchy about it.

My post was quite reasonably worded I thought, projection maybe? Wink 


Edited by transient - 25 Aug 16 at 3:45pm
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Posts: 6662 		Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 16 at 2:56pm
To my mind the main reason boat weights are so opaque is that its surprisingly troublesome to organise weighing a reasonable sample of boats accurately.

Not much point in getting tetchy about it.

Edited by JimC - 25 Aug 16 at 2:57pm
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Posts: 715 		Post Options Post Options   Quote transient Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 16 at 2:37pm
Originally posted by jeffers

Originally posted by transient

Thanks for that Mr Cirrus. Still leaves a couple of questions though. I know the minimum weight is 72kgs but what is standard weight? and are the modern ones made to the same weight tolerance as thew 10yr old ones or are the built closer to 72kgs now?

Unless you travel round and weigh a load of the older generations of Blaze you are unlikely to get an answer. Topper certainly never published hull weights so you are at the mercy of the builder.

I never thought I would get an answer to that question. I thought I'd still ask though. ;-)

The pre-Cirrus Blazes were sold by Topper but built by White Formula (IIRC). I had 655 (the second of the X versions with the semi-soft sail) and it was reputed (in the fleet) to be towards the lighter end of the usual hull weights (but had never been weighed to my knowledge).

With all due respect, there you go again with "usual hull weight"  same as Mr. Cirrus's "standard hull weight". Logically and in all fairness I think I can expect a straight answer to the question: What is standard hull weight?

The question of dinghy manufacturers weights as published (or not) appears in some cases to be so opaque as to be meaningless and many punters will always wonder why.


 




Edited by transient - 25 Aug 16 at 3:39pm
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Posts: 3048 		Post Options Post Options   Quote jeffers Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 16 at 8:50am
Originally posted by transient

Thanks for that Mr Cirrus. Still leaves a couple of questions though. I know the minimum weight is 72kgs but what is standard weight? and are the modern ones made to the same weight tolerance as thew 10yr old ones or are the built closer to 72kgs now?

Unless you travel round and weigh a load of the older generations of Blaze you are unlikely to get an answer. Topper certainly never published hull weights so you are at the mercy of the builder.

The pre-Cirrus Blazes were sold by Topper but built by White Formula (IIRC). I had 655 (the second of the X versions with the semi-soft sail) and it was reputed (in the fleet) to be towards the lighter end of the usual hull weights (but had never been weighed to my knowledge).

As has been said what is far more important is how the boat has been treated over it's lifetime, especially polyester resins as they do take on water.
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Posts: 715 		Post Options Post Options   Quote transient Quote  Post ReplyReply Direct Link To This Post Posted: 24 Aug 16 at 5:33pm
Thanks for that Mr Cirrus. Still leaves a couple of questions though. I know the minimum weight is 72kgs but what is standard weight? and are the modern ones made to the same weight tolerance as thew 10yr old ones or are the built closer to 72kgs now?
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