[C38] FW: Re: Symetrical Spinnakers and now radar mounts
Joseph Launie
jlaunie at cox.net
Fri Aug 3 22:08:28 EDT 2012
thanks Tom - you have remembered way more than I know Joe
On 8/3/2012 3:20 PM, tdtron at earthlink.net wrote:
> Hello Joe again,
> As I was cutting our lawn a few minutes ago I was thinking of
> the email below and suddenly remembered that a SO238 is probably the
> chassis mounted connector for a PL-259 VHF connector like the
> connectors on the back of our VHF radios and not the barrel connector
> used to connect to PL259's together. I have not taken the time to go
> look up the names of the connectors to be certain but any Radio Shack
> or ham radio store can help you with the connectors once you identify
> the coax type.
> It's been a long time since I worked with that stuff and now I think I
> have CRS but I forgot what that stands for.
> Tom Troncalli
>
> ----- Original Message -----
> *From:* tdtron at earthlink.net <mailto:tdtron at earthlink.net>
> *To: *Catalina 38 Listserve <mailto:listserve at catalina38.org>
> *Sent:* 8/3/2012 4:04:37 PM
> *Subject:* Re: [C38] Symetrical Spinnakers
>
> Hello Joe,
> You don't have to spice the coax. Depending on the type of coax,
> there are couplers and barrel connectors to match. For instance,
> on RG58 or similar coax cables, you put a PL259 on each side of
> the cut and then connect both connectors to a female barrel
> connector which may be a SO238. I am working on memory here but
> any ham radio store should be able to help you if you identify the
> coax.
> Installing solder type PL259 connectors is a pain but don't be
> tempted to use the solderless type, they invite trouble on boats.
> They should also offer sealing putty also to wrap the connection
> for a water tight connection. Even a well wrapped connection
> using quality electrical tape will work. I often use WD40 on the
> actual connectors before I connect them and then clean the
> outsides for a good bond with either the putty or tape.
> This is more difficult than a conventional splice but using these
> connectors allows easy removal in the future if needed and also
> keeps the inductance of the cable uniform for best conductivity
> and minimum loss at the high frequencies of radar.
> Tom Troncalli
>
> ----- Original Message -----
> *From:* Joseph Launie <mailto:jlaunie at cox.net>
> *To: *listserve at catalina38.org <mailto:listserve at catalina38.org>
> *Sent:* 8/3/2012 3:23:01 PM
> *Subject:* Re: [C38] Symetrical Spinnakers
>
> Tom,
> Thank you - I like the idea of shimming to a smaller
> diameter aluminium post since mine is stainless. It would be
> very difficult to unthread the co-ax so I wonder if I can cut
> and splice it - voids waranty but that is long gone anyway. Joe
> On 8/3/2012 7:18 AM, tdtron at earthlink.net wrote:
>> Hello Joe,
>> What is the Inside diameter 6' post? If you can find out
>> that dimension and locate a piece of similar material but
>> smaller with an outside diameter of the inside diameter of
>> the standing 6' post, you could easily telescope the two
>> pieces together making the post mount any height you want.
>> As you know, the strains are less higher up the post vs. the
>> lower section so you will not lose any strength by using a
>> smaller diameter post extension and your wind resistance will
>> be less also than a uniform diameter post to the new height.
>> I have made similar projects and finding exact size tubes
>> that have telescoping dimension properties is often difficult
>> but the radio industry has sources for telescoping
>> materials. If your existing post does not have a
>> corresponding smaller post material that is compatible, you
>> can shim the smaller post with something like plastic tape
>> (not duct tape) to take out the dimensional differences if
>> they are small. I have also used the shim method to
>> transition from steel to aluminum with good results since the
>> materials are isolated by the dielectric qualities of the
>> plastic tape. Any ham radio outlet should be able to give
>> you resources to find the materials you need to make a post
>> extension. This is a regular problem with building radio
>> antennas and towers.
>> If this procedure of using an inside post to modify the
>> height of your existing post will work for you, you may be
>> able to leave the existing post mounted to your boat which
>> will save a lot of time.
>> I wish you were closer to me so I could help you with this
>> project. I have a fairly complete weld shop and machine shop
>> so that I can still practice my abilities of being a
>> technical blue collar nerd wannabe.
>> Good luck,
>> Tom Troncalli
>> ----- Original Message -----
>>
>> *From:* Joseph Launie <mailto:jlaunie at cox.net>
>> *To: *listserve at catalina38.org
>> <mailto:listserve at catalina38.org>
>> *Sent:* 8/3/2012 3:01:36 AM
>> *Subject:* Re: [C38] Symetrical Spinnakers
>>
>> Steve,
>> Thanks - now how do I go from a 6 foot post to a 10
>> foot one? I have lots of xtra cable. I guess I have to
>> discard this one and build the ten foot out of aluminum.
>> It would be way easier if I could cut the co-ax. Joe
>> On 8/2/2012 10:22 PM, Steve Smolinske wrote:
>>>
>>> Joe,
>>>
>>> When I did my post I did the calculations so that the
>>> bowman assuming he is six feet tall would be missed by
>>> the beam, our post is 10 tall and mounted so the base is
>>> where the fuel line vent use to be. If I remember
>>> correctly the angle off the the radome for the beam is
>>> 2-2.5 degrees
>>>
>>> Steve
>>>
>>> *From:*listserve-bounces at catalina38.org
>>> [mailto:listserve-bounces at catalina38.org] *On Behalf Of
>>> *Joseph Launie
>>> *Sent:* Tuesday, July 31, 2012 10:14 AM
>>> *To:* listserve at catalina38.org
>>> *Subject:* Re: [C38] Symetrical Spinnakers
>>>
>>> we have another rigging issue.We let the idiot "rigger"
>>> for the local J boat dealer install our radar. He put it
>>> on a post 6 feet above the deck. We are afraid to use it
>>> for fear of radiation damage. Any thoughts? Joe
>>>
>>> On 7/31/2012 9:39 AM, William Knowles wrote:
>>>
>>> Jay are you using the external spin block or an
>>> internal one say your spare jib haylard, that could
>>> be a problem.
>>>
>>> Bill
>>>
>>> On Tue, Jul 31, 2012 at 11:24 AM, Donald Strong
>>> <drstrong at ucdavis.edu <mailto:drstrong at ucdavis.edu>>
>>> wrote:
>>>
>>>
>>> Jay: I feel for you man. We have had lots of spinny
>>> drama. We always roller furl the jib when flying
>>> spinnaker. The rest of your questions are beyond my
>>> experience.
>>> Don
>>>
>>> >
>>> > ------_=_NextPart_002_01CD6EB3.1776DEB4
>>> > Content-Type: text/plain;
>>> > charset="us-ascii"
>>> > Content-Transfer-Encoding: quoted-printable
>>> >
>>> > Hello All,
>>> >
>>> >
>>> >
>>> > We flew our 0.75 oz spinnaker for the first time
>>> yesterday during a
>>> > family sail and have a couple of questions for the
>>> group.
>>> >
>>> >
>>> >
>>> > 1. During the douse the spin
>>> halyard got stuck and
>>> > appeared to be caught on the roller furling gear
>>> near the masthead. Is
>>> > this common? Also, is it normal to roller furl
>>> the jib when using a
>>> > symmetrical chute or do you really need to drop it
>>> on deck? I race on a
>>> > Serendipity 43 and Swan 51 with a deck sweeper
>>> jibs that are dropped
>>> > when flying a chute, and on a J-105 that rolls the
>>> jib while flying an
>>> > asymmetrical, so having a roller furler and a
>>> symmetrical chute is new
>>> > to us.
>>> >
>>> > 2. While working to get the
>>> chute down we added a few
>>> > new tears to the many that were there previously
>>> so was going to put out
>>> > a call to anyone who might have a used symmetrical
>>> spinnaker(s)
>>> > (0.5-0.75oz) laying around that they are not
>>> using. Will pay a
>>> > reasonable price plus shipping!
>>> >
>>> > 3. And lastly, does anyone who
>>> uses very light
>>> > spinnaker sheets in light air have a preference
>>> for light weight
>>> > shackles. The plastic Lewmar ones we use on the
>>> Serendipity tend to
>>> > open up under load and I thought one of you may
>>> have a preferable
>>> > option?? Or maybe we'll just tie on light line!
>>> >
>>> >
>>> >
>>> > Thanks much!
>>> >
>>> >
>>> >
>>> > Jay & Dorothy Sorensen
>>> >
>>> > C-38 #311 Broad Reach
>>> >
>>> > San Diego, CA
>>> >
>>> >
>>> >
>>> >
>>> > ------_=_NextPart_002_01CD6EB3.1776DEB4
>>> > Content-Type: text/html;
>>> > charset="us-ascii"
>>> > Content-Transfer-Encoding: quoted-printable
>>> >
>>> > <html
>>> xmlns:o="urn:schemas-microsoft-com:office:office"
>>> > xmlns:w="urn:schemas-microsoft-com:office:word"
>>> > xmlns:st1="urn:schemas-microsoft-com:office:smarttags"
>>> > xmlns="http://www.w3.org/TR/REC-html40">
>>> >
>>> > <head>
>>> > <meta http-equiv=Content-Type content="text/html;
>>> <meta name=Generator content="Microsoft Word 11
>>> (filtered medium)">
>>> > <o:SmartTagType
>>> >
>>> namespaceuri="urn:schemas-microsoft-com:office:smarttags"
>>> > name="State"/>
>>> > <o:SmartTagType
>>> >
>>> namespaceuri="urn:schemas-microsoft-com:office:smarttags"
>>> > name="City"/>
>>> > <o:SmartTagType
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>>> namespaceuri="urn:schemas-microsoft-com:office:smarttags"
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>>> > <!--[if !mso]>
>>> > <style>
>>> > st1\:*{behavior:url(#default#ieooui) }
>>> > </style>
>>> > <![endif]-->
>>> > <style>
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>>> > /* Style Definitions */
>>> > p.MsoNormal, li.MsoNormal, div.MsoNormal
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>>> > font-size:12.0pt;
>>> > font-family:"Times New Roman";}
>>> > a:link, span.MsoHyperlink
>>> > {color:blue;
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>>> > {mso-style-type:personal-compose;
>>> > font-family:Arial;
>>> > color:windowtext;}
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>>> >
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>>> > <div class=Section1>
>>> >
>>> > <p class=MsoNormal><font size=2 face=Arial><span
>>> > style='font-size:10.0pt;
>>> > font-family:Arial'>Hello
>>> All,<o:p></o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal><font size=2 face=Arial><span
>>> > style='font-size:10.0pt;
>>> > font-family:Arial'><o:p> </o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal><font size=2 face=Arial><span
>>> > style='font-size:10.0pt;
>>> > font-family:Arial'>We flew our 0.75 oz spinnaker
>>> for the first time
>>> > yesterday
>>> > during a family sail and have a couple of
>>> questions for the
>>> > group.<o:p></o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal><font size=2 face=Arial><span
>>> > style='font-size:10.0pt;
>>> > font-family:Arial'><o:p> </o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal
>>> >
>>> style='margin-left:.75in;text-indent:-.5in;mso-list:l0
>>> level1
>>> > lfo1'><![if !supportLists]><font
>>> > size=2 face=Arial><span
>>> > style='font-size:10.0pt;font-family:Arial'><span
>>> > style='mso-list:Ignore'>1.<font size=1 face="Times
>>> New Roman"><span
>>> > style='font:7.0pt "Times New
>>> > Roman"'>
>>> > </span></font></span></span></font><![endif]><font
>>> > size=2 face=Arial><span
>>> > style='font-size:10.0pt;font-family:Arial'>During
>>> the douse the spin
>>> > halyard
>>> > got stuck and appeared to be caught on the roller
>>> furling gear near the
>>> > masthead. Is this common? Also, is it normal to
>>> roller furl
>>> > the jib
>>> > when using a symmetrical chute or do you really
>>> need to drop it on deck?
>>> > I
>>> > race on a Serendipity 43 and Swan 51 with a deck
>>> sweeper jibs that are
>>> > dropped
>>> > when flying a chute, and on a J-105 that rolls the
>>> jib while flying an
>>> > asymmetrical, so having a roller furler and a
>>> symmetrical chute is new to
>>> > us.<o:p></o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal
>>> >
>>> style='margin-left:.75in;text-indent:-.5in;mso-list:l0
>>> level1
>>> > lfo1'><![if !supportLists]><font
>>> > size=2 face=Arial><span
>>> > style='font-size:10.0pt;font-family:Arial'><span
>>> > style='mso-list:Ignore'>2.<font size=1 face="Times
>>> New Roman"><span
>>> > style='font:7.0pt "Times New
>>> > Roman"'>
>>> > </span></font></span></span></font><![endif]><font
>>> > size=2 face=Arial><span
>>> > style='font-size:10.0pt;font-family:Arial'>While
>>> working to get the chute
>>> > down
>>> > we added a few new tears to the many that were
>>> there previously so was
>>> > going to
>>> > put out a call to anyone who might have a used
>>> symmetrical spinnaker(s)
>>> > (0.5-0.75oz) laying around that they are not
>>> using. Will pay a
>>> > reasonable
>>> > price plus shipping!<o:p></o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal
>>> >
>>> style='margin-left:.75in;text-indent:-.5in;mso-list:l0
>>> level1
>>> > lfo1'><![if !supportLists]><font
>>> > size=2 face=Arial><span
>>> > style='font-size:10.0pt;font-family:Arial'><span
>>> > style='mso-list:Ignore'>3.<font size=1 face="Times
>>> New Roman"><span
>>> > style='font:7.0pt "Times New
>>> > Roman"'>
>>> > </span></font></span></span></font><![endif]><font
>>> > size=2 face=Arial><span
>>> > style='font-size:10.0pt;font-family:Arial'>And
>>> lastly, does anyone who
>>> > uses
>>> > very light spinnaker sheets in light air have a
>>> preference for light
>>> > weight
>>> > shackles. The plastic Lewmar ones we use on the
>>> Serendipity tend to
>>> > open
>>> > up under load and I thought one of you may have a
>>> preferable
>>> > option?? Or
>>> > maybe we'll just tie on light
>>> > line!<o:p></o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal><font size=2 face=Arial><span
>>> > style='font-size:10.0pt;
>>> > font-family:Arial'><o:p> </o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal><font size=2 face=Arial><span
>>> > style='font-size:10.0pt;
>>> > font-family:Arial'>Thanks
>>> > much!<o:p></o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal><font size=2 face=Arial><span
>>> > style='font-size:10.0pt;
>>> > font-family:Arial'><o:p> </o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal><font size=2 face=Arial><span
>>> > style='font-size:10.0pt;
>>> > font-family:Arial'>Jay & Dorothy
>>> > Sorensen<o:p></o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal><font size=2 face=Arial><span
>>> > style='font-size:10.0pt;
>>> > font-family:Arial'>C-38 #311 Broad
>>> > Reach<o:p></o:p></span></font></p>
>>> >
>>> > <p class=MsoNormal><st1:place w:st="on"><st1:City
>>> > w:st="on"><font size=2
>>> > face=Arial><span
>>> style='font-size:10.0pt;font-family:Arial'>San
>>> > Diego</span></font></st1:City><font
>>> > size=2 face=Arial><span
>>> style='font-size:10.0pt;font-family:Arial'>,
>>> > <st1:State
>>> >
>>> >
>>> w:st="on">CA</st1:State></span></font></st1:place><o:p></o:p></p>
>>> >
>>> > <p class=MsoNormal><font size=3 face="Times New
>>> Roman"><span
>>> > style='font-size:
>>> > 12.0pt'><o:p> </o:p></span></font></p>
>>> >
>>> > </div>
>>> >
>>> > </body>
>>> >
>>> > </html>
>>> >
>>> > ------_=_NextPart_002_01CD6EB3.1776DEB4--
>>> >
>>>
>>>
>>> _______________________________________________
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>>>
>>>
>>> --
>>> W H Knowles
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>>
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>>
>>
>>
>>
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