[frers-list]Rig tensions
Bill Thompson
frers-list@lists.frers33.com
Thu, 02 Oct 2014 10:02:16 -0400
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Way to go guys! Cheering for you in Montreal!
Bill Thompson
514 942-6709
> On Oct 2, 2014, at 9:00 AM, Edgar Smith <edgar@geomatrixproductions.com> w=
rote:
>=20
> Damn Dave, we've been relying on Archimedes' principle. No wonder you keep=
beating us. Guess we're just old school.
>=20
> By the way, we've put together a Frers 33 super-group for the Thundermug r=
egatta. We've got the captains of First Edition, Risoluto and Pachyderm toge=
ther aboard Pachyderm to see if we can screw up Dave's chances for a first o=
verall in ECSA. For those outside of our area, Wolverine is currently tied f=
or first place against in the Eastern Connecticut Sailing Association overal=
l results. Bring it on Wolverine!
>=20
> Edgar Smith
> Geomatrix Productions
> www.geomatrixproductions.com
> edgar@geomatrixproductions.com
> Work - (203) 389-0001
> Fax- (203) 387-8558
> Cell/evening (203) 215-5405
>=20
> On Oct 2, 2014, at 1:03 AM, <frers-list-request@lists.frers33.com>
> wrote:
>=20
>> Send frers-list mailing list submissions to
>> frers-list@lists.frers33.com
>>=20
>> To subscribe or unsubscribe via the World Wide Web, visit
>> http://lists.frers33.com/mailman/listinfo/frers-list
>> or, via email, send a message with subject or body 'help' to
>> frers-list-request@lists.frers33.com
>>=20
>> You can reach the person managing the list at
>> frers-list-admin@lists.frers33.com
>>=20
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of frers-list digest..."
>>=20
>> Today's Topics:
>>=20
>> 1. Re: Rig tensions (Comodore2@aol.com)
>> 2. Rig Tension (straight)
>> 3. Rig tensions (Edgar Smith)
>> 4. RE: Rig tensions (Dave Nauber)
>>=20
>> From: <Comodore2@aol.com>
>> Date: October 1, 2014 8:32:44 AM EDT
>> To: <frers-list@lists.frers33.com>
>> Subject: Re: [frers-list]Rig tensions
>> Reply-To: <frers-list@lists.frers33.com>
>>=20
>>=20
>> Mike, Al gauges shown are for wire rigging. Frers 33 has ROD rigging.
>> Jack Greifzu (Slingshot)
>> =20
>> In a message dated 9/30/2014 9:41:12 A.M. Eastern Daylight Time, Mike.Hoy=
t@impgroup.com writes:
>> Hi
>> =20
>> I noticed on the tuning guide the numbers reported were the gauge reading=
s rather than the translated numbers in pounds. I have also noted that Loos=
makes several models of these tension gauges and each would likely give a d=
ifferent number.
>> =20
>> Would it be possible to replay with not only the numbers you use for uppe=
rs, lowers, intermediates and forestay as the tension gauge numbers but if p=
ossible also the translated pounds value and the model of your tension gauge=
? If anyone knows the diameter of rod used in each that would be nice as we=
ll because if it differs from boat to boat it would affect the readings as w=
ell. Our former J boat rig tuning guide was ion pounds =E2=80=A6.
>> =20
>> Thanks=20
>> =20
>> Mike
>>=20
>>=20
>>=20
>> From: straight <StrightR@eastlink.ca>
>> Date: October 1, 2014 8:57:12 AM EDT
>> To: <frers-list@lists.frers33.com>
>> Subject: [frers-list]Rig Tension
>> Reply-To: <frers-list@lists.frers33.com>
>>=20
>>=20
>> Hi Mike,
>> =20
>> As I mentioned previously the Frers 33 is equipped with Rod Rigging. The=
Loos Gauge required is one that is made and calibrated for Rod Rigging. Th=
e procedure is to measure the rod on the instrument (calibration is on the s=
ide) then hook on the guage and check the rig tension and adjust as appropri=
ate. The numbers are a lot simpler to keep track of than the pounds. As fa=
r as I know the readings are similar if not identical on all Rod Rigging Loo=
se gauges. The reason for the variation in tension on different rigs is pro=
bably a reflection of the type of sailing done, competition and local condi=
tions. Info on the gauge used is available at http://loosnaples.com/tensio=
n-gauges/rod-rigging-gauge.
>> =20
>> I believe all Loos Gauges made for rod rigging will give the same reading=
s if they are used properly.
>> =20
>> Rod
>> Equinox
>>=20
>>=20
>>=20
>> From: Edgar Smith <edgar@geomatrixproductions.com>
>> Date: October 1, 2014 11:04:25 AM EDT
>> To: <frers-list@lists.frers33.com>
>> Subject: [frers-list]Rig tensions
>> Reply-To: <frers-list@lists.frers33.com>
>>=20
>>=20
>> Hi Mike:
>>=20
>> Sounds like you'll be racing your boat, always good to hear. I also came f=
rom a J-boat and I think you'll find the Frers mast is actually easier to tu=
ne. We got the forestay length and rake from the tuning guide and centered t=
he mast before blocking. Then the shrouds were just a matter of sighting up t=
he mast while under sail. First we tension the uppers a few turns with a wre=
nch after hand tight. Then I work down, keeping the mast in column at the do=
ck keeping the intermediates and lowers both a bit looser than the uppers. T=
he goal is tight enough that the leeward upper does not go particularly slac=
k in moderate breeze. I don't see any value in more tension than that. Becau=
se the shrouds are not swept back by more than an few inches, you are not co=
ntrolling fore and aft mast bend with them. So it's really just a matter of g=
oing for a sail and making some adjustments to keep it straight under load. I=
sight with mast straight - minimal backstay and runner on so it is easier t=
o judge if the mast is, hooking, falling off or just bending in column. I ha=
ven't seen the need for a Loos gauge. Finally if the breeze is really on we m=
ight take two turns on the headstay and one extra turn on the uppers before a=
race.=20
>>=20
>> Does anybody take a more scientific approach than we do?
>>=20
>>=20
>> Edgar Smith
>> Pachyderm
>>=20
>>=20
>>=20
>> From: Dave Nauber <dnauber@classeaudio.com>
>> Date: October 1, 2014 11:14:07 AM EDT
>> To: <frers-list@lists.frers33.com>
>> Subject: RE: [frers-list]Rig tensions
>> Reply-To: <frers-list@lists.frers33.com>
>>=20
>>=20
>> Wolverine uses Euler=E2=80=99s Equations to compute rig tension, but sigh=
ting up the mast is good too.
>> =20
>> David Nauber
>> President
>> Class=C3=A9
>>=20
>> C: 860-301-7011 | classeaudio.com
>> B&W Group Canada | 5070 Fran=C3=A7ois Cusson | Lachine | QC | H8T 1B3
>> Follow Bowers & Wilkins on: facebook.com/bowerswilkins | twitter.com/bowe=
rs_wilkins | youtube.com/bowerswilkins
>>=20
>> This email message is confidential and for use by the addressee only. Pub=
lication of its contents in whole or in part in any medium (including electr=
onic means such as e-mail and web-sites) is expressly forbidden without prio=
r written consent. B&W Group Ltd does not accept responsibility for any chan=
ges made to this message after it was sent. The views expressed in this docu=
ment are that of the individual and may not necessarily constitute or imply i=
ts endorsement or recommendation by B&W Group Ltd.
>>=20
>> =20
>> From: frers-list-admin@lists.frers33.com [mailto:frers-list-admin@lists.f=
rers33.com] On Behalf Of Edgar Smith
>> Sent: Wednesday, October 01, 2014 11:04 AM
>> To: frers-list@lists.frers33.com
>> Subject: [frers-list]Rig tensions
>> =20
>> Hi Mike:
>> =20
>> Sounds like you'll be racing your boat, always good to hear. I also came f=
rom a J-boat and I think you'll find the Frers mast is actually easier to tu=
ne. We got the forestay length and rake from the tuning guide and centered t=
he mast before blocking. Then the shrouds were just a matter of sighting up t=
he mast while under sail. First we tension the uppers a few turns with a wre=
nch after hand tight. Then I work down, keeping the mast in column at the do=
ck keeping the intermediates and lowers both a bit looser than the uppers. T=
he goal is tight enough that the leeward upper does not go particularly slac=
k in moderate breeze. I don't see any value in more tension than that. Becau=
se the shrouds are not swept back by more than an few inches, you are not co=
ntrolling fore and aft mast bend with them. So it's really just a matter of g=
oing for a sail and making some adjustments to keep it straight under load. I=
sight with mast straight - minimal backstay and runner on so it is easier t=
o judge if the mast is, hooking, falling off or just bending in column. I ha=
ven't seen the need for a Loos gauge. Finally if the breeze is really on we m=
ight take two turns on the headstay and one extra turn on the uppers before a=
race.=20
>> =20
>> Does anybody take a more scientific approach than we do?
>> =20
>> =20
>> Edgar Smith
>> Pachyderm
>>=20
>>=20
>>=20
>> _______________________________________________
>> frers-list mailing list
>> frers-list@lists.frers33.com
>> http://lists.frers33.com/mailman/listinfo/frers-list
>>=20
>=20
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>Way to go guys! Cheering for you in Mo=
ntreal!<br><br>Bill Thompson<div>514 942-6709</div></div><div><br>On Oct 2, 2=
014, at 9:00 AM, Edgar Smith <<a href=3D"mailto:edgar@geomatrixproduction=
s.com">edgar@geomatrixproductions.com</a>> wrote:<br><br></div><blockquot=
e type=3D"cite"><div>Damn Dave, we've been relying on Archimedes' principle.=
No wonder you keep beating us. Guess we're just old school.<div><br></div><=
div>By the way, we've put together a Frers 33 super-group for the Thundermug=
regatta. We've got the captains of First Edition, Risoluto and Pachyderm to=
gether aboard Pachyderm to see if we can screw up Dave's chances for a first=
overall in ECSA. For those outside of our area, Wolverine is currently tied=
for first place against in the Eastern Connecticut Sailing Association over=
all results. Bring it on Wolverine!<div><br><div>
Edgar Smith<br>Geomatrix Productions<br><a href=3D"http://www.geomatrixprodu=
ctions.com">www.geomatrixproductions.com</a><br><a href=3D"mailto:edgar@geom=
atrixproductions.com">edgar@geomatrixproductions.com</a><br>Work - (203=
) 389-0001<br>Fax- (203) 387-8558<br>Cell/evening (203) 215-5405
</div>
<br><div><div>On Oct 2, 2014, at 1:03 AM, <<a href=3D"mailto:frers-list-r=
equest@lists.frers33.com">frers-list-request@lists.frers33.com</a>></div>=
<div> wrote:</div><br class=3D"Apple-interchange-newline"><blockquote t=
ype=3D"cite">Send frers-list mailing list submissions to<br><span class=3D"A=
pple-tab-span" style=3D"white-space:pre"> </span><a href=3D"mailto:fr=
ers-list@lists.frers33.com">frers-list@lists.frers33.com</a><br><br>To subsc=
ribe or unsubscribe via the World Wide Web, visit<br><span class=3D"Apple-ta=
b-span" style=3D"white-space:pre"> </span><a href=3D"http://lists.frer=
s33.com/mailman/listinfo/frers-list">http://lists.frers33.com/mailman/listin=
fo/frers-list</a><br>or, via email, send a message with subject or body 'hel=
p' to<br><span class=3D"Apple-tab-span" style=3D"white-space:pre"> </s=
pan><a href=3D"mailto:frers-list-request@lists.frers33.com">frers-list-reque=
st@lists.frers33.com</a><br><br>You can reach the person managing the list a=
t<br><span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span><a h=
ref=3D"mailto:frers-list-admin@lists.frers33.com">frers-list-admin@lists.fre=
rs33.com</a><br><br>When replying, please edit your Subject line so it is mo=
re specific<br>than "Re: Contents of frers-list digest..."<br><br>Today's To=
pics:<br><br> 1. Re: Rig tensions (<a href=3D"mailto:Comodore2@a=
ol.com">Comodore2@aol.com</a>)<br> 2. Rig Tension (straight)<br>=
3. Rig tensions (Edgar Smith)<br> 4. RE: Rig tensio=
ns (Dave Nauber)<br><br><div style=3D"margin-top: 0px; margin-right: 0px; ma=
rgin-bottom: 0px; margin-left: 0px;"><span style=3D"font-family:'Helvetica';=
font-size:medium; color:rgba(127, 127, 127, 1.0);"><b>From: </b></span><spa=
n style=3D"font-family:'Helvetica'; font-size:medium;"><<a href=3D"mailto=
:Comodore2@aol.com">Comodore2@aol.com</a>><br></span></div><div style=3D"=
margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><=
span style=3D"font-family:'Helvetica'; font-size:medium; color:rgba(127, 127=
, 127, 1.0);"><b>Date: </b></span><span style=3D"font-family:'Helvetica'; fo=
nt-size:medium;">October 1, 2014 8:32:44 AM EDT<br></span></div><div style=3D=
"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;">=
<span style=3D"font-family:'Helvetica'; font-size:medium; color:rgba(127, 12=
7, 127, 1.0);"><b>To: </b></span><span style=3D"font-family:'Helvetica'; fon=
t-size:medium;"><<a href=3D"mailto:frers-list@lists.frers33.com">frers-li=
st@lists.frers33.com</a>><br></span></div><div style=3D"margin-top: 0px; m=
argin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style=3D"font=
-family:'Helvetica'; font-size:medium; color:rgba(127, 127, 127, 1.0);"><b>S=
ubject: </b></span><span style=3D"font-family:'Helvetica'; font-size:medium;=
"><b>Re: [frers-list]Rig tensions</b><br></span></div><div style=3D"margin-t=
op: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span sty=
le=3D"font-family:'Helvetica'; font-size:medium; color:rgba(127, 127, 127, 1=
.0);"><b>Reply-To: </b></span><span style=3D"font-family:'Helvetica'; font-s=
ize:medium;"><<a href=3D"mailto:frers-list@lists.frers33.com">frers-list@=
lists.frers33.com</a>><br></span></div><br><br>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8">
<meta name=3D"GENERATOR" content=3D"MSHTML 11.00.9600.17280">
<div id=3D"role_body" style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial; COLOR: #=
000000" bottommargin=3D"7" leftmargin=3D"7" rightmargin=3D"7" topmargin=3D"7=
"><font id=3D"role_document" color=3D"#000000" size=3D"2" face=3D"Arial">
<div>Mike, Al gauges shown are for wire rigging. Frers 33 has ROD=20
rigging.</div>
<div>Jack Greifzu (Slingshot)</div>
<div> </div>
<div>
<div>In a message dated 9/30/2014 9:41:12 A.M. Eastern Daylight Time,=20
<a href=3D"mailto:Mike.Hoyt@impgroup.com">Mike.Hoyt@impgroup.com</a> writes:=
</div>
<blockquote style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2=
px solid"><font style=3D"BACKGROUND-COLOR: transparent" color=3D"#1f497d" si=
ze=3D"2" face=3D"Calibri">
<div class=3D"WordSection1"><p class=3D"MsoNormal"><span style=3D"COLOR: #=
1f497d">Hi<o:p></o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-CA" s=
tyle=3D"COLOR: #1f497d"><o:p> </o:p></span></p><p class=3D"MsoNormal"><=
span lang=3D"EN-CA" style=3D"COLOR: #1f497d">I noticed on the=20
tuning guide the numbers reported were the gauge readings rather than the=20=
translated numbers in pounds. I have also noted that Loos makes seve=
ral=20
models of these tension gauges and each would likely give a different=20
number.<o:p></o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-CA" s=
tyle=3D"COLOR: #1f497d"><o:p> </o:p></span></p><p class=3D"MsoNormal"><=
span lang=3D"EN-CA" style=3D"COLOR: #1f497d">Would it be=20
possible to replay with not only the numbers you use for uppers, lowers,=20=
intermediates and forestay as the tension gauge numbers but if possible al=
so=20
the translated pounds value and the model of your tension gauge? If=20=
anyone knows the diameter of rod used in each that would be nice as well=20=
because if it differs from boat to boat it would affect the readings as=20=
well. Our former J boat rig tuning guide was ion pounds=20
=E2=80=A6.<o:p></o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-CA=
" style=3D"COLOR: #1f497d"><o:p> </o:p></span></p><p class=3D"MsoNormal=
"><span lang=3D"EN-CA" style=3D"COLOR: #1f497d">Thanks =20
<o:p></o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-CA" style=3D=
"COLOR: #1f497d"><o:p> </o:p></span></p><p class=3D"MsoNormal"><span la=
ng=3D"EN-CA" style=3D"COLOR: #1f497d">Mike</span></p></div></font></blockquo=
te></div></font></div><br><br><br><div style=3D"margin-top: 0px; margin-righ=
t: 0px; margin-bottom: 0px; margin-left: 0px;"><span style=3D"font-family:'H=
elvetica'; font-size:medium; color:rgba(127, 127, 127, 1.0);"><b>From: </b><=
/span><span style=3D"font-family:'Helvetica'; font-size:medium;">straight &l=
t;<a href=3D"mailto:StrightR@eastlink.ca">StrightR@eastlink.ca</a>><br></=
span></div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0=
px; margin-left: 0px;"><span style=3D"font-family:'Helvetica'; font-size:med=
ium; color:rgba(127, 127, 127, 1.0);"><b>Date: </b></span><span style=3D"fon=
t-family:'Helvetica'; font-size:medium;">October 1, 2014 8:57:12 AM EDT<br><=
/span></div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom:=
0px; margin-left: 0px;"><span style=3D"font-family:'Helvetica'; font-size:m=
edium; color:rgba(127, 127, 127, 1.0);"><b>To: </b></span><span style=3D"fon=
t-family:'Helvetica'; font-size:medium;"><<a href=3D"mailto:frers-list@li=
sts.frers33.com">frers-list@lists.frers33.com</a>><br></span></div><div s=
tyle=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left:=
0px;"><span style=3D"font-family:'Helvetica'; font-size:medium; color:rgba(=
127, 127, 127, 1.0);"><b>Subject: </b></span><span style=3D"font-family:'Hel=
vetica'; font-size:medium;"><b>[frers-list]Rig Tension</b><br></span></div><=
div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-=
left: 0px;"><span style=3D"font-family:'Helvetica'; font-size:medium; color:=
rgba(127, 127, 127, 1.0);"><b>Reply-To: </b></span><span style=3D"font-famil=
y:'Helvetica'; font-size:medium;"><<a href=3D"mailto:frers-list@lists.fre=
rs33.com">frers-list@lists.frers33.com</a>><br></span></div><br><br>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii">=
<meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)"><st=
yle><!--
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<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--><div lang=3D"EN-CA" link=3D"#0563C1" vlink=
=3D"#954F72"><div class=3D"WordSection1"><p class=3D"MsoNormal">Hi Mike,<o:p=
></o:p></p><p class=3D"MsoNormal"><o:p> </o:p></p><p class=3D"MsoNormal=
">As I mentioned previously the Frers 33 is equipped with Rod Rigging. =
The Loos Gauge required is one that is made and calibrated for Rod Rigging.=
The procedure is to measure the rod on the instrument (calibration is=
on the side) then hook on the guage and check the rig tension and adjust as=
appropriate. The numbers are a lot simpler to keep track of than the p=
ounds. As far as I know the readings are similar if not identical on a=
ll Rod Rigging Loose gauges. The reason for the variation in tension o=
n different rigs is probably a reflection of the type of sailing done,=
competition and local conditions. Info on the gauge used is available=
at <a href=3D"http://loosnaples.com/tension-gauges/rod-rigging-gauge"=
>http://loosnaples.com/tension-gauges/rod-rigging-gauge</a>.<o:p></o:p></p><=
p class=3D"MsoNormal"><o:p> </o:p></p><p class=3D"MsoNormal">I believe a=
ll Loos Gauges made for rod rigging will give the same readings if they are u=
sed properly.<o:p></o:p></p><p class=3D"MsoNormal"><o:p> </o:p></p><p c=
lass=3D"MsoNormal">Rod<o:p></o:p></p><p class=3D"MsoNormal">Equinox <o:p></o=
:p></p></div></div><br><br><br><div style=3D"margin-top: 0px; margin-right: 0=
px; margin-bottom: 0px; margin-left: 0px;"><span style=3D"font-family:'Helve=
tica'; font-size:medium; color:rgba(127, 127, 127, 1.0);"><b>From: </b></spa=
n><span style=3D"font-family:'Helvetica'; font-size:medium;">Edgar Smith <=
;<a href=3D"mailto:edgar@geomatrixproductions.com">edgar@geomatrixproduction=
s.com</a>><br></span></div><div style=3D"margin-top: 0px; margin-right: 0=
px; margin-bottom: 0px; margin-left: 0px;"><span style=3D"font-family:'Helve=
tica'; font-size:medium; color:rgba(127, 127, 127, 1.0);"><b>Date: </b></spa=
n><span style=3D"font-family:'Helvetica'; font-size:medium;">October 1, 2014=
11:04:25 AM EDT<br></span></div><div style=3D"margin-top: 0px; margin-right=
: 0px; margin-bottom: 0px; margin-left: 0px;"><span style=3D"font-family:'He=
lvetica'; font-size:medium; color:rgba(127, 127, 127, 1.0);"><b>To: </b></sp=
an><span style=3D"font-family:'Helvetica'; font-size:medium;"><<a href=3D=
"mailto:frers-list@lists.frers33.com">frers-list@lists.frers33.com</a>><b=
r></span></div><div style=3D"margin-top: 0px; margin-right: 0px; margin-bott=
om: 0px; margin-left: 0px;"><span style=3D"font-family:'Helvetica'; font-siz=
e:medium; color:rgba(127, 127, 127, 1.0);"><b>Subject: </b></span><span styl=
e=3D"font-family:'Helvetica'; font-size:medium;"><b>[frers-list]Rig tensions=
</b><br></span></div><div style=3D"margin-top: 0px; margin-right: 0px; margi=
n-bottom: 0px; margin-left: 0px;"><span style=3D"font-family:'Helvetica'; fo=
nt-size:medium; color:rgba(127, 127, 127, 1.0);"><b>Reply-To: </b></span><sp=
an style=3D"font-family:'Helvetica'; font-size:medium;"><<a href=3D"mailt=
o:frers-list@lists.frers33.com">frers-list@lists.frers33.com</a>><br></sp=
an></div><br><br>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii">=
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-=
break: after-white-space; ">Hi Mike:<div><br></div><div>Sounds like you'll b=
e racing your boat, always good to hear. I also came from a J-boat and I thi=
nk you'll find the Frers mast is actually easier to tune. We got the foresta=
y length and rake from the tuning guide and centered the mast before blockin=
g. Then the shrouds were just a matter of sighting up the mast while under s=
ail. First we tension the uppers a few turns with a wrench after hand tight.=
Then I work down, keeping the mast in column at the dock keeping the i=
ntermediates and lowers both a bit looser than the uppers. The goal is t=
ight enough that the leeward upper does not go particularly slack in moderat=
e breeze. I don't see any value in more tension than that. Because the shrou=
ds are not swept back by more than an few inches, you are not controlling fo=
re and aft mast bend with them. So it's really just a matter of going for a s=
ail and making some adjustments to keep it straight under load. I sight with=
mast straight - minimal backstay and runner on so it is easier to judge if t=
he mast is, hooking, falling off or just bending in column. I haven't seen t=
he need for a Loos gauge. Finally if the breeze is really on we might take t=
wo turns on the headstay and one extra turn on the uppers before a race.&nbs=
p;</div><div><br></div><div>Does anybody take a more scientific approach tha=
n we do?</div><div><br></div><div><br><div>
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; font-fa=
mily: Verdana; font-style: normal; font-variant: normal; font-weight: normal=
; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webk=
it-auto; text-indent: 0px; text-transform: none; white-space: normal; widows=
: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-bord=
er-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-=
text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "=
>Edgar Smith</span></div><div><span class=3D"Apple-style-span" style=3D"bord=
er-collapse: separate; font-family: Verdana; font-style: normal; font-varian=
t: normal; font-weight: normal; letter-spacing: normal; line-height: normal;=
orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: non=
e; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizon=
tal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorat=
ions-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-wi=
dth: 0px; font-size: medium; ">Pachyderm<br></span></div></div></div><br><br=
><br><div style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; m=
argin-left: 0px;"><span style=3D"font-family:'Helvetica'; font-size:medium; c=
olor:rgba(127, 127, 127, 1.0);"><b>From: </b></span><span style=3D"font-fami=
ly:'Helvetica'; font-size:medium;">Dave Nauber <<a href=3D"mailto:dnauber=
@classeaudio.com">dnauber@classeaudio.com</a>><br></span></div><div style=
=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px=
;"><span style=3D"font-family:'Helvetica'; font-size:medium; color:rgba(127,=
127, 127, 1.0);"><b>Date: </b></span><span style=3D"font-family:'Helvetica'=
; font-size:medium;">October 1, 2014 11:14:07 AM EDT<br></span></div><div st=
yle=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0=
px;"><span style=3D"font-family:'Helvetica'; font-size:medium; color:rgba(12=
7, 127, 127, 1.0);"><b>To: </b></span><span style=3D"font-family:'Helvetica'=
; font-size:medium;"><<a href=3D"mailto:frers-list@lists.frers33.com">fre=
rs-list@lists.frers33.com</a>><br></span></div><div style=3D"margin-top: 0=
px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><span style=3D=
"font-family:'Helvetica'; font-size:medium; color:rgba(127, 127, 127, 1.0);"=
><b>Subject: </b></span><span style=3D"font-family:'Helvetica'; font-size:me=
dium;"><b>RE: [frers-list]Rig tensions</b><br></span></div><div style=3D"mar=
gin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;"><spa=
n style=3D"font-family:'Helvetica'; font-size:medium; color:rgba(127, 127, 1=
27, 1.0);"><b>Reply-To: </b></span><span style=3D"font-family:'Helvetica'; f=
ont-size:medium;"><<a href=3D"mailto:frers-list@lists.frers33.com">frers-=
list@lists.frers33.com</a>><br></span></div><br><br><meta http-equiv=3D"C=
ontent-Type" content=3D"text/html; charset=3Diso-8859-1">
<meta name=3D"Generator" content=3D"Microsoft Word 12 (filtered medium)"><st=
yle><!--
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<o:shapelayout v:ext=3D"edit">
<o:idmap v:ext=3D"edit" data=3D"1" />
</o:shapelayout></xml><![endif]--><div lang=3D"EN-US" link=3D"blue" vlink=3D=
"purple"><div class=3D"WordSection1"><p class=3D"MsoNormal"><span style=3D"f=
ont-size:11.0pt;font-family:"Calibri","sans-serif";color=
:#1F497D">Wolverine uses Euler=E2=80=99s Equations to compute rig tension, b=
ut sighting up the mast is good too. <o:p></o:p></span></p><p class=3D"MsoNo=
rmal"><span style=3D"font-size:11.0pt;font-family:"Calibri","=
sans-serif";color:#1F497D"><o:p> </o:p></span></p><div><p class=3D=
"MsoNormal" style=3D"text-autospace:none"><b><span style=3D"font-size:10.0pt=
;font-family:"Verdana","sans-serif";color:gray">David Na=
uber</span></b><span style=3D"font-size:10.0pt;font-family:"Tahoma"=
;,"sans-serif";color:gray"><br></span><span style=3D"font-size:10.=
0pt;font-family:"Verdana","sans-serif";color:gray">Presi=
dent<br>Class=C3=A9</span><span style=3D"font-size:10.0pt;font-family:"=
Tahoma","sans-serif";color:gray"><br></span><span style=3D"fo=
nt-size:7.5pt;font-family:"Tahoma","sans-serif";color:gr=
ay"><br></span><span style=3D"font-size:10.0pt;font-family:"Verdana&quo=
t;,"sans-serif";color:gray">C: 860-301-7011 | <a href=3D"http://cl=
asseaudio.com">classeaudio.com</a><br>B&W Group Canada | 5070 Fran=C3=A7=
ois Cusson | Lachine | QC | H8T 1B3</span><span style=3D"font-size:8.5pt;fon=
t-family:"MS Shell Dlg","sans-serif";color:#1F497D"><o:p=
></o:p></span></p><p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><spa=
n style=3D"font-size:9.0pt;font-family:"Verdana","sans-serif&=
quot;;color:#6E6F71">Follow Bowers & Wilkins on: <a href=3D"http://faceb=
ook.com/bowerswilkins">facebook.com/bowerswilkins</a> | <a href=3D"http://tw=
itter.com/bowers_wilkins">twitter.com/bowers_wilkins</a> | <a href=3D"http:/=
/youtube.com/bowerswilkins">youtube.com/bowerswilkins</a></span><span style=3D=
"font-size:7.5pt;font-family:"Verdana","sans-serif";colo=
r:gray"><br><br>This email message is confidential and for use by the addres=
see only. Publication of its contents in whole or in part in any medium (inc=
luding electronic means such as e-mail and web-sites) is expressly forbidden=
without prior written consent. B&W Group Ltd does not accept responsibi=
lity for any changes made to this message after it was sent. The views expre=
ssed in this document are that of the individual and may not necessarily con=
stitute or imply its endorsement or recommendation by B&W Group Ltd. </s=
pan><span style=3D"font-size:10.0pt;font-family:"Tahoma","san=
s-serif";color:black"><o:p></o:p></span></p></div><p class=3D"MsoNormal=
"><span style=3D"font-size:11.0pt;font-family:"Calibri","sans=
-serif";color:#1F497D"><o:p> </o:p></span></p><div><div style=3D"b=
order:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in"><p clas=
s=3D"MsoNormal"><b><span style=3D"font-size:10.0pt;font-family:"Tahoma&=
quot;,"sans-serif"">From:</span></b><span style=3D"font-size:10.0p=
t;font-family:"Tahoma","sans-serif""> <a href=3D"mailto:=
frers-list-admin@lists.frers33.com">frers-list-admin@lists.frers33.com</a> [=
<a href=3D"mailto:frers-list-admin@lists.frers33.com">mailto:frers-list-admi=
n@lists.frers33.com</a>] <b>On Behalf Of </b>Edgar Smith<br><b>Sent:</b> Wed=
nesday, October 01, 2014 11:04 AM<br><b>To:</b> <a href=3D"mailto:frers-list=
@lists.frers33.com">frers-list@lists.frers33.com</a><br><b>Subject:</b> [fre=
rs-list]Rig tensions<o:p></o:p></span></p></div></div><p class=3D"MsoNormal"=
><o:p> </o:p></p><p class=3D"MsoNormal">Hi Mike:<o:p></o:p></p><div><p c=
lass=3D"MsoNormal"><o:p> </o:p></p></div><div><p class=3D"MsoNormal">So=
unds like you'll be racing your boat, always good to hear. I also came from a=
J-boat and I think you'll find the Frers mast is actually easier to tune. W=
e got the forestay length and rake from the tuning guide and centered the ma=
st before blocking. Then the shrouds were just a matter of sighting up the m=
ast while under sail. First we tension the uppers a few turns with a wrench a=
fter hand tight. Then I work down, keeping the mast in column at the do=
ck keeping the intermediates and lowers both a bit looser than the uppers.&n=
bsp;The goal is tight enough that the leeward upper does not go particularly=
slack in moderate breeze. I don't see any value in more tension than that. B=
ecause the shrouds are not swept back by more than an few inches, you are no=
t controlling fore and aft mast bend with them. So it's really just a matter=
of going for a sail and making some adjustments to keep it straight under l=
oad. I sight with mast straight - minimal backstay and runner on so it is ea=
sier to judge if the mast is, hooking, falling off or just bending in column=
. I haven't seen the need for a Loos gauge. Finally if the breeze is really o=
n we might take two turns on the headstay and one extra turn on the uppers b=
efore a race. <o:p></o:p></p></div><div><p class=3D"MsoNormal"><o:p>&nb=
sp;</o:p></p></div><div><p class=3D"MsoNormal">Does anybody take a more scie=
ntific approach than we do?<o:p></o:p></p></div><div><p class=3D"MsoNormal">=
<o:p> </o:p></p></div><div><p class=3D"MsoNormal"><o:p> </o:p></p>=
<div><p class=3D"MsoNormal"><span class=3D"apple-style-span"><span style=3D"=
font-size:13.5pt;font-family:"Verdana","sans-serif";colo=
r:black">Edgar Smith</span></span><o:p></o:p></p></div><div><p class=3D"MsoN=
ormal"><span class=3D"apple-style-span"><span style=3D"font-size:13.5pt;font=
-family:"Verdana","sans-serif";color:black">Pachyderm</s=
pan></span><span style=3D"font-size:13.5pt;font-family:"Verdana",&=
quot;sans-serif";color:black"><br><br></span><o:p></o:p></p></div></div=
></div></div><br><br>_______________________________________________<br>frer=
s-list mailing list<br><a href=3D"mailto:frers-list@lists.frers33.com">frers=
-list@lists.frers33.com</a><br><a href=3D"http://lists.frers33.com/mailman/l=
istinfo/frers-list">http://lists.frers33.com/mailman/listinfo/frers-list</a>=
<br><br></blockquote></div><br></div></div></div></blockquote></body></html>=
--Boundary_(ID_G7qOOLJ346aWwgRr6jxlzQ)--