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Lightest 4.2 sail
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isobars



Joined: 12 Dec 1999
Posts: 19216

PostPosted: Fri Jul 13, 2018 7:02 pm    Post subject: Reply with quote

OK. Ya talked me into it. My 4.7 Sinewave weighs 2.56 kg ... including some webbing, a buckle, and the sail bag. But since my 4.7 Sinewave FEELS lighter than my 4.2 Featherlite when maneuvering and has every ounce of power of my 5.2 Featherlite, I'm very happy with it. More than half -- maybe 2/3 -- of my sail is an exciting, new, exotic, uber-tech material I chose for its greater handling, superior durability, gorgeous appearance, lighter weight (especially at the clew, which along with the Autobatten system decreases rotational inertia significantly), and more. I've compared the material for entire seasons on the water to every other sail material I've heard of, and prefer it over the rest in the leech half of the sail body. Some of you may have heard of it: it's called dacron.
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U2U2U2



Joined: 06 Jul 2001
Posts: 5052
Location: Shipsterns Bluff, Tasmania. Colorado

PostPosted: Fri Jul 13, 2018 7:54 pm    Post subject: Reply with quote

isobars wrote:
OK. Ya talked me into it. My 4.7 Sinewave weighs 2.56 kg ... including some webbing, a buckle, and the sail bag. But since my 4.7 Sinewave FEELS lighter than my 4.2 Featherlite when maneuvering and has every ounce of power of my 5.2 Featherlite, I'm very happy with it. More than half -- maybe 2/3 -- of my sail is an exciting, new, exotic, uber-tech material I chose for its greater handling, superior durability, gorgeous appearance, lighter weight (especially at the clew, which along with the Autobatten system decreases rotational inertia significantly), and more. I've compared the material for entire seasons on the water to every other sail material I've heard of, and prefer it over the rest in the leech half of the sail body. Some of you may have heard of it: it's called dacron.


Your sail in 4.7 size weighs 15% less than quoted by NW. It does however still rig on a 400cm mast.

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isobars



Joined: 12 Dec 1999
Posts: 19216

PostPosted: Fri Jul 13, 2018 8:39 pm    Post subject: Reply with quote

And some aluminum booms weigh less than their carbon counterparts, one of my masts weighs 1.1 kg, and I've passed Miatas on twisty two-lane highways ... in my Winnebago. Life's full of surprises.
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U2U2U2



Joined: 06 Jul 2001
Posts: 5052
Location: Shipsterns Bluff, Tasmania. Colorado

PostPosted: Sat Jul 14, 2018 8:14 am    Post subject: Reply with quote

isobars wrote:
And some aluminum booms weigh less than their carbon counterparts, one of my masts weighs 1.1 kg, and I've passed Miatas on twisty two-lane highways ... in my Winnebago. Life's full of surprises.


One of the lightest masts is a Maverx 340 at 980Grams.
Carbon booms do 2 things , lighter weight and stiffer, generally speaking, better than alloy.

On a sail that weights 6.5 lbs a minus of .975 variation is a lot.

Driving skills have no direct correlation to a particular car, maybe he had his goldfish in the passenger seat.

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isobars



Joined: 12 Dec 1999
Posts: 19216

PostPosted: Sat Jul 14, 2018 12:26 pm    Post subject: Reply with quote

U2U2U2 wrote:
1. Carbon booms ... lighter weight ... than alloy.

2. On a sail that weights 6.5 lbs a minus of .975 variation is a lot.


1. With some brands.

2. Only if on a sinker.
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U2U2U2



Joined: 06 Jul 2001
Posts: 5052
Location: Shipsterns Bluff, Tasmania. Colorado

PostPosted: Sat Jul 14, 2018 1:19 pm    Post subject: Reply with quote

isobars wrote:
U2U2U2 wrote:
1. Carbon booms ... lighter weight ... than alloy.

2. On a sail that weights 6.5 lbs a minus of .975 variation is a lot.


1. With some brands.

2. Only if on a sinker.


If someone paid for a carbon boom and it weights more than a alloy, they deserve it.

You will next say it will effect my sailing if I have cheese on my burger

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isobars



Joined: 12 Dec 1999
Posts: 19216

PostPosted: Sat Jul 14, 2018 4:45 pm    Post subject: Reply with quote

U2U2U2 wrote:
You will next say it will effect my sailing if I have cheese on my burger

It would take a pound and a half of cheese to equal the 0.7kg range in sail weights you posted. I suspect that would affect more than your sailing. Very Happy
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U2U2U2



Joined: 06 Jul 2001
Posts: 5052
Location: Shipsterns Bluff, Tasmania. Colorado

PostPosted: Sat Jul 14, 2018 5:30 pm    Post subject: Reply with quote

isobars wrote:
U2U2U2 wrote:
You will next say it will effect my sailing if I have cheese on my burger

It would take a pound and a half of cheese to equal the 0.7kg range in sail weights you posted. I suspect that would affect more than your sailing. Very Happy


The NW quote is 3.95 kg your quote is 2.56 kg - = .39kg//.858lb
Not .7kg range you have posted.
But .7kg does equal 1.54lbs , which is close to 1.5lbs, cheese or horseshit .

Itís so confusing to get things correctly.

Umm someone posted how precisely sails are cut earlier in the thread@@@


Lofts cut sail panels within hundredths of an inch ... @@
Ohh dear that was you ISO

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isobars



Joined: 12 Dec 1999
Posts: 19216

PostPosted: Sat Jul 14, 2018 10:14 pm    Post subject: Reply with quote

I don't know whether it's your fault or mine, but you're significantly misreading my posts in this thread. It was you, not I, who posted a list of sail weights varying from 2.5 to 3.2 kg ... the mysterious 0.7 kg range.
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U2U2U2



Joined: 06 Jul 2001
Posts: 5052
Location: Shipsterns Bluff, Tasmania. Colorado

PostPosted: Sat Jul 14, 2018 11:19 pm    Post subject: Reply with quote

isobars wrote:
I don't know whether it's your fault or mine, but you're significantly misreading my posts in this thread. It was you, not I, who posted a list of sail weights varying from 2.5 to 3.2 kg ... the mysterious 0.7 kg range.


Ahh, so thats where the .7kg is from. The remainder of your posts contain heavy carbon booms VS alloy, 1.1kg mast weight and best sail ever review.Yes Iím quite aware I posted weights
for sails, that are published , or first hand from the company. The range of those weights is of no interest. BTW S2 Maui with the Dragon did not reply . Several others were unknown, and if the OP is interested he can inquire.
I missed a few , but they dont publish weights
Iím not promoting any brand , as you are. Looking over some of my figures I have mistakes in size, the HSM pair are 4.6 not 4.7.

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