[C38] J measurement

[dmills3 at comcast.net]

Our boat is extremely easy to get a rough J measurement because of the slopeing foredeck and the placement of the foreward hatch. I went down to my boat, opened the foreward hatch, attached a tape measure to the stem fitting with a twisty wire from a loaf of bread and pulled the tape through the hatch to the forward side of the mast and presto, mine is 15'- 5". The J is the measurement taken at a   90 degree angle from the front of the mast to forestay attachment. On our boat it is very easy to take that measurement. It's not perfect but it is close. 

Were you there when he took his measurements? I believe he made an error. 

Dan #108 



----- Original Message -----


From: "Steven Ribble" <steve.ribble at gmail.com> 
To: Larrypi at roadrunner.com, "Catalina 38 Listserve" <listserve at catalina38.org> 
Sent: Tuesday, January 31, 2012 2:19:59 PM 
Subject: Re: [C38] J measurement 

Thanks Larry...the sailmaker took the measurements and asked me if I knew why the boat didn't match the published dimensions. 

On Tuesday, January 31, 2012, Larry Malmberg < Larrypi at roadrunner.com > wrote: 
> My suggestion would be to ask one of the local sail makers to come out and make all the appropriate measures for you, jot them down and go from there.  Maybe even two of them at different times.  I have found they are very cooperative if they think there is a sail purchase in the future. 
>   
> 
> 
> 
> Best regards, 
> 
> Larry Malmberg 
> Team Hassle 
> 
>   
> ________________________________ 
> From: listserve-bounces at catalina38.org [mailto: listserve-bounces at catalina38.org ] On Behalf Of Steven Ribble 
> Sent: Tuesday, January 31, 2012 10:57 AM 
> To: Catalina 38 Listserve 
> Subject: Re: [C38] J measurement 
> 
> Yes I have roller furling, but the measurement is to the point it attaches to the bow/deck. 
> 
> On Tuesday, January 31, 2012,  < dmills3 at comcast.net > wrote: 
>> Do you have roller furling and are measuring to the tack fitting on the drum? That seems to be the only possibility. 
>> 
>> Dan 
>> 
>> ________________________________ 
>> 
>> From: "Steven Ribble" < steve.ribble at gmail.com > 
>> To: "Catalina 38 Listserve" < listserve at catalina38.org > 
>> Sent: Tuesday, January 31, 2012 12:21:00 PM 
>> Subject: Re: [C38] J measurement 
>> 
>> Measurement is from the front of the mast to the forestay tack...I could see an inch or so, but 6 seems like a lot of error. 
>> 
>> On Tuesday, January 31, 2012,  < dmills3 at comcast.net > wrote: 
>>> Where are you taking your measurement? PHRF says, "Distance perpendicular from foreside of mast line to the point of intersection of the forestay with deck". If you set a spinnaker pole as low as possible and drop a plumbob down to the the forestay attachment and take a measurement from the mast to where the plumbob is attached to the spinnaker pole it should be 15.5 feet. The measurement is not from the track on the front of the mast. You have to add the thickness of the track to get the real measurement. Also make sure the boat is level ( not bowdown or sterndown ) When building a spinnaker pole you have to take into consideration the thickness of the track the spinnaker car and the diameter of the ring. The spinnaker pole will be several inches shorter than 15.5 feet.  
>>> 
>>> Dan #108 
>>> 
>>> ________________________________ 
>>> 
>>> From: "Steven Ribble" < steve.ribble at gmail.com > 
>>> To: "Catalina 38 Listserve" < listserve at catalina38.org > 
>>> Sent: Tuesday, January 31, 2012 10:08:17 AM 
>>> Subject: [C38] J measurement 
>>> 
>>> Hi Folks, I'm getting a new headsail and need a little help verifying the J dimension.  Published data indicates we have a J of 15.5 feet but mine measures 15' (1980, #64)...has anyone else had this situation?  If mine is different from the rest/majority should this impact my rating? 
>>> 
>>> -- 
>>> Steve Ribble 
>>> 207/852-0971 
>>> 
>>> _______________________________________________ 
>>> Listserve mailing list 
>>> Listserve at catalina38.org 
>>> http://catalina38.org/mailman/listinfo/listserve_catalina38.org 
>>> 
>> 
>> -- 
>> Steve Ribble 
>> 207/852-0971 
>> 
>> _______________________________________________ 
>> Listserve mailing list 
>> Listserve at catalina38.org 
>> http://catalina38.org/mailman/listinfo/listserve_catalina38.org 
>> 
> 
> -- 
> Steve Ribble 
> 207/852-0971 
> 

-- 
Steve Ribble 
207/852-0971 

_______________________________________________ 
Listserve mailing list 
Listserve at catalina38.org 
http://catalina38.org/mailman/listinfo/listserve_catalina38.org 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://catalina38.org/pipermail/listserve_catalina38.org/attachments/20120201/c555496f/attachment-0001.htm>