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Interesting New Sheaveless Block #261889
07/31/13 08:30 AM
07/31/13 08:30 AM
Joined: Mar 2002
Posts: 3,355
Key Largo, FL and Put-in-Bay, ...
RickWhite Offline OP

Carpal Tunnel
RickWhite  Offline OP

Carpal Tunnel

Joined: Mar 2002
Posts: 3,355
Key Largo, FL and Put-in-Bay, ...
Take a look at this new sheaveless block by Ronstan.., extremely light. Only can handle line up to 3/16" or 5mm. Could be utile for some lightweight rigging stuff.
http://www.catsailor.com/store/pc/SHOCK-SHeaveless-blOCK-very-lightweight-392p34835.htm


Rick White
Catsailor Magazine & OnLineMarineStore.com
www.onlinemarinestore.com
-- Have You Seen This? --
Re: Interesting New Sheaveless Block [Re: RickWhite] #261892
07/31/13 09:19 AM
07/31/13 09:19 AM
Joined: Dec 2001
Posts: 5,590
Naples, FL
waterbug_wpb Offline
Carpal Tunnel
waterbug_wpb  Offline
Carpal Tunnel

Joined: Dec 2001
Posts: 5,590
Naples, FL
interesting. For you engineering types out there, what is the easiest way to measure working loads on a line? For instance, a jib-sheet or rotator line?


Jay

Re: Interesting New Sheaveless Block [Re: waterbug_wpb] #261895
07/31/13 11:15 AM
07/31/13 11:15 AM
Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA
David Ingram Offline
Carpal Tunnel
David Ingram  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA
Originally Posted by waterbug_wpb
interesting. For you engineering types out there, what is the easiest way to measure working loads on a line? For instance, a jib-sheet or rotator line?


Back on the imaginary boat build I see. Please keep us updated with pictures.

I'm freaking hilarious!


David Ingram
F18 USA 242
http://www.solarwind.solar

"Do or do not. There is no try." - Yoda
"Excuses are the tools of the weak and incompetent" - Two sista's I overheard in the hall
"You don't have to be a brain surgeon to be a complete idiot, but it helps"
Re: Interesting New Sheaveless Block [Re: David Ingram] #261899
07/31/13 12:05 PM
07/31/13 12:05 PM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
Originally Posted by David Ingram


I'm freaking hilarious!


At least you are alive....was starting to wonder.


Jake Kohl
Re: Interesting New Sheaveless Block [Re: RickWhite] #261900
07/31/13 12:17 PM
07/31/13 12:17 PM
Joined: Oct 2012
Posts: 186
wildtsail7 Offline
member
wildtsail7  Offline
member

Joined: Oct 2012
Posts: 186
These have been discussed quite a bit on Sailing Anarchy.
Ferrules such as those from Antal and Schaefer make a lot more sense as they are stronger, ligther and if they fail the failsafe is still in the eye splice.
The Shockblock is cool but is limited to a very light load applications which there aren't to many of on our boats. And there is no failsafe if it breaks unlike a ferrule.

If you want the easiest way to test loads, spinlock makes a load cell for measuring road loads. https://www.spinlock.co.uk/en/load-analysis/zs-ropesense-2/10-tonne-wireless-load-cell
I've used it, nothing super fancy but easy to use. I'd love to try it on the F18 one of these days.

Re: Interesting New Sheaveless Block [Re: RickWhite] #261902
07/31/13 12:30 PM
07/31/13 12:30 PM
Joined: Sep 2004
Posts: 2,584
+31NL
Tony_F18 Offline
Carpal Tunnel
Tony_F18  Offline
Carpal Tunnel

Joined: Sep 2004
Posts: 2,584
+31NL
I think it could be a good alternative to small stainless rings like we use under the tramp and inside the beam, or anywhere else some line guidance it needed.

Re: Interesting New Sheaveless Block [Re: Jake] #261907
07/31/13 01:03 PM
07/31/13 01:03 PM
Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA
David Ingram Offline
Carpal Tunnel
David Ingram  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 3,906
Clermont, FL, USA
Originally Posted by Jake
Originally Posted by David Ingram


I'm freaking hilarious!


At least you are alive....was starting to wonder.


I'm still trying to get over THart unfriending me on Facebook. It has been a difficult time for me.


David Ingram
F18 USA 242
http://www.solarwind.solar

"Do or do not. There is no try." - Yoda
"Excuses are the tools of the weak and incompetent" - Two sista's I overheard in the hall
"You don't have to be a brain surgeon to be a complete idiot, but it helps"
Re: Interesting New Sheaveless Block [Re: David Ingram] #261910
07/31/13 01:45 PM
07/31/13 01:45 PM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
Originally Posted by David Ingram
Originally Posted by Jake
Originally Posted by David Ingram


I'm freaking hilarious!


At least you are alive....was starting to wonder.


I'm still trying to get over THart unfriending me on Facebook. It has been a difficult time for me.


Oh, I probably started that. I don't think he's gotten over me unfriending him yet. You were probably just there at the wrong place, wrong time. Innocent casualty.

(why is beheading the act of removing a head but befriending is an act of friendship?).


Jake Kohl
Re: Interesting New Sheaveless Block [Re: wildtsail7] #261911
07/31/13 01:47 PM
07/31/13 01:47 PM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
Originally Posted by wildtsail7
These have been discussed quite a bit on Sailing Anarchy.
Ferrules such as those from Antal and Schaefer make a lot more sense as they are stronger, ligther and if they fail the failsafe is still in the eye splice.
The Shockblock is cool but is limited to a very light load applications which there aren't to many of on our boats. And there is no failsafe if it breaks unlike a ferrule.

If you want the easiest way to test loads, spinlock makes a load cell for measuring road loads. https://www.spinlock.co.uk/en/load-analysis/zs-ropesense-2/10-tonne-wireless-load-cell
I've used it, nothing super fancy but easy to use. I'd love to try it on the F18 one of these days.


Sure, I'll pick one of those up crazy ... $4,500? I would rather have a set of sails.


Jake Kohl
Re: Interesting New Sheaveless Block [Re: David Ingram] #261915
07/31/13 03:45 PM
07/31/13 03:45 PM
Joined: Dec 2001
Posts: 5,590
Naples, FL
waterbug_wpb Offline
Carpal Tunnel
waterbug_wpb  Offline
Carpal Tunnel

Joined: Dec 2001
Posts: 5,590
Naples, FL
Originally Posted by David Ingram


Back on the imaginary boat build I see. Please keep us updated with pictures.

I'm freaking hilarious!


Closer than you think if the bank dude wasn't such a pr*ck

I'm too fat for an F18 anyway...


Jay

Re: Interesting New Sheaveless Block [Re: waterbug_wpb] #261933
08/01/13 08:01 AM
08/01/13 08:01 AM

M
MN3
Unregistered
MN3
Unregistered
M



Originally Posted by waterbug_wpb
I'm too fat for an F18 anyway...

Do they make a f19 for "plus sized skippers"?

Re: Interesting New Sheaveless Block [Re: RickWhite] #261942
08/01/13 08:29 AM
08/01/13 08:29 AM
Joined: Nov 2011
Posts: 382
SE MI / NE IN
rehmbo Offline
enthusiast
rehmbo  Offline
enthusiast

Joined: Nov 2011
Posts: 382
SE MI / NE IN
These look kinda cool, but I'm trying to imagine an application for them on my boat.

I think the inexpensive rings underneath the tramp are lightly loaded and work just fine as they are.

Perhaps the cunningham blocks up by the tack? Jib sheeting purchase? Spin halyard (up top)? Traps?

Haven't had trouble with any of these areas yet.


Jeff R

H18, C2 USA1193
cramsailing.com
crescentsail.com
Re: Interesting New Sheaveless Block [Re: rehmbo] #261944
08/01/13 08:52 AM
08/01/13 08:52 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
Originally Posted by rehmbo
These look kinda cool, but I'm trying to imagine an application for them on my boat.

I think the inexpensive rings underneath the tramp are lightly loaded and work just fine as they are.

Perhaps the cunningham blocks up by the tack? Jib sheeting purchase? Spin halyard (up top)? Traps?

Haven't had trouble with any of these areas yet.


I can see how they might be useful in some of the bunji routing systems for the spin sheet take up and trap lines...but these are more expensive than Harkan's 16mm blocks and I would much rather use the real block with a sheave and bearings.

The advantage to this thing, however, probably is with entanglement. If it's in a system that often has slack in it I can see how this would be less likely to mis-orient itself. Perhaps on something like the mast rotation limiter or something.


Jake Kohl
Re: Interesting New Sheaveless Block [Re: RickWhite] #261952
08/01/13 03:23 PM
08/01/13 03:23 PM

S
Scarecrow
Unregistered
Scarecrow
Unregistered
S



Hey Rick, any chance you're about to add the antel type rings to your shop? I'm about to order some other stuff of you and need a couple of small ones (no I don't want the shock blocks).

Re: Interesting New Sheaveless Block [Re: Jake] #261953
08/01/13 03:42 PM
08/01/13 03:42 PM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
oh, wait. That $17 is for a pair of those. That's not too bad and would start to be an idea in bunji or other shallow angle line systems


Jake Kohl
Re: Interesting New Sheaveless Block [Re: Jake] #261956
08/01/13 04:38 PM
08/01/13 04:38 PM
Joined: Sep 2002
Posts: 3,224
Roanoke Island ,N.C.
Team_Cat_Fever Offline
Carpal Tunnel
Team_Cat_Fever  Offline
Carpal Tunnel

Joined: Sep 2002
Posts: 3,224
Roanoke Island ,N.C.
Originally Posted by Jake
Originally Posted by David Ingram
Originally Posted by Jake
Originally Posted by David Ingram


I'm freaking hilarious!


At least you are alive....was starting to wonder.


I'm still trying to get over THart unfriending me on Facebook. It has been a difficult time for me.


Oh, I probably started that. I don't think he's gotten over me unfriending him yet. You were probably just there at the wrong place, wrong time. Innocent casualty.

(why is beheading the act of removing a head but befriending is an act of friendship?).


Think pretty highly of yourself much ? Unfriending me because you can't support your argument with facts doesn't bother me in the least, just shows poor character.
Maybe you need to plan another addition to the garage mahal to make room for your swelled head. wink

Ding, I thought you unfriended me. Damn, NSA spiking sailing buddies now.

And to stay on topic, I'd guess these "blocks" are geared toward kite boarding, like their little plastic ones.


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White
Re: Interesting New Sheaveless Block [Re: Team_Cat_Fever] #261958
08/01/13 09:23 PM
08/01/13 09:23 PM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
Originally Posted by Team_Cat_Fever
Originally Posted by Jake
Originally Posted by David Ingram
Originally Posted by Jake


At least you are alive....was starting to wonder.


I'm still trying to get over THart unfriending me on Facebook. It has been a difficult time for me.


Oh, I probably started that. I don't think he's gotten over me unfriending him yet. You were probably just there at the wrong place, wrong time. Innocent casualty.

(why is beheading the act of removing a head but befriending is an act of friendship?).


Think pretty highly of yourself much ? Unfriending me because you can't support your argument with facts doesn't bother me in the least, just shows poor character.
Maybe you need to plan another addition to the garage mahal to make room for your swelled head. wink

Ding, I thought you unfriended me. Damn, NSA spiking sailing buddies now.

And to stay on topic, I'd guess these "blocks" are geared toward kite boarding, like their little plastic ones.


Argument? Nah..that never happened. I just got tired of the endless drivel of hateful political stuff in my newsfeed.


Jake Kohl
Re: Interesting New Sheaveless Block [Re: ] #261962
08/02/13 06:02 AM
08/02/13 06:02 AM
Joined: Mar 2002
Posts: 3,355
Key Largo, FL and Put-in-Bay, ...
RickWhite Offline OP

Carpal Tunnel
RickWhite  Offline OP

Carpal Tunnel

Joined: Mar 2002
Posts: 3,355
Key Largo, FL and Put-in-Bay, ...
Scarecrow, what is antel type rings
Rick


Rick White
Catsailor Magazine & OnLineMarineStore.com
www.onlinemarinestore.com
Re: Interesting New Sheaveless Block [Re: RickWhite] #261967
08/02/13 07:01 AM
08/02/13 07:01 AM
Joined: Jun 2001
Posts: 12,310
South Carolina
Jake Offline
Carpal Tunnel
Jake  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 12,310
South Carolina
The French solo racers started using these where possible a few years ago on shallow angle leads (barber haulers and the like) to replace blocks with moving parts that could fail. These are lighter too. There are a couple of different varieties now - Hall makes a version as do Schaefer and Holt. It's a polished aluminum ring.

[Linked Image]


Jake Kohl
Re: Interesting New Sheaveless Block [Re: RickWhite] #261976
08/02/13 11:59 AM
08/02/13 11:59 AM

S
Scarecrow
Unregistered
Scarecrow
Unregistered
S



What he said. Great for low angle or high load cascades.

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