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<P>When I first took the readings, I was surprised to see how much of a range there was from the tighest to the slackest. I threw out the 3 highest and and all the lowest ones with backstay under 200 and took my averages from the rest of the list. <BR><BR>Mike Lehman </P></DIV>
<DIV></DIV>"Gilleleje" #505
<DIV></DIV>
<DIV></DIV>"What is the use of a house if you haven't got a tolerable planet to put it on?" Henry David Thoreau
<DIV></DIV>
<DIV></DIV>
<DIV></DIV>
<DIV></DIV>----Original Message Follows----
<DIV></DIV>From: Brian and Elaine Timmins <TIMMINS@OPTONLINE.NET>
<DIV></DIV>Reply-To: Alberg 30 public list <PUBLIC-LIST@ALBERG30.ORG>
<DIV></DIV>To: Alberg 30 public list <PUBLIC-LIST@ALBERG30.ORG>
<DIV></DIV>Subject: Re: [Alberg30] Re: BRIANS #'S
<DIV></DIV>Date: Sun, 15 Sep 2002 23:33:48 -0400
<DIV></DIV>
<DIV></DIV>What Alfredo has submitted is the original list that I used to come up
<DIV></DIV>with my numbers (basically by averaging).
<DIV></DIV>Here is my last posting that included my numbers:
<DIV></DIV>>
<DIV></DIV>> Here is the text from the previous message.
<DIV></DIV>>
<DIV></DIV>> These are the conclusions I drew from the list when it was published in
<DIV></DIV>May
<DIV></DIV>>
<DIV></DIV>> Average tensions of the whole list:
<DIV></DIV>> Forestay/Backstay............733
<DIV></DIV>> Backstay only...................726
<DIV></DIV>> Forestay only....................735.6
<DIV></DIV>> Uppers.............................685
<DIV></DIV>> Fwd Lowers.....................495
<DIV></DIV>> Aft Lowers........................0 (loose)
<DIV></DIV>>
<DIV></DIV>> Race Boats Only Averages:
<DIV></DIV>> Forestay only....................811
<DIV></DIV>> No backstay only
<DIV></DIV>> Uppers..............................862
<DIV></DIV>> Fwd Lowers......................679
<DIV></DIV>>
<DIV></DIV>> Based on these numbers and info taken from Brion Toss's video on rig
<DIV></DIV>tuning
<DIV></DIV>> (and his web site), This is how I set up my mast.
<DIV></DIV>> Starting with the mast vertical, tighten the forestay to snug/tight but
<DIV></DIV>not
<DIV></DIV>> to pull the mast forward of vertical.
<DIV></DIV>> Tighten the backstay to 625
<DIV></DIV>> Tighten uppers to 750
<DIV></DIV>> Tighten Fwd lowers to 620
<DIV></DIV>> Tighten Aft lowers to slack/100
<DIV></DIV>>
<DIV></DIV>> After sailing a bit, I reset the backstay to 700
<DIV></DIV>> These numbers worked very well for me and the boat was nicely balanced.
<DIV></DIV>>
<DIV></DIV>> Don't ask me to explain my logic anymore (this was done in June). I just
<DIV></DIV>> happened to come across my note sheet from doing the job.
<DIV></DIV>> All tensions were done with a Loos Model B, part # 90 gauge
<DIV></DIV>>
<DIV></DIV>Regards,
<DIV></DIV>Brian ex#497 "Free Spirit"
<DIV></DIV>----- Original Message -----
<DIV></DIV>From: "Alfredo" <NJ95GXE@YAHOO.COM>
<DIV></DIV>To: <PUBLIC-LIST@ALBERG30.ORG>
<DIV></DIV>Sent: Sunday, September 15, 2002 7:08 PM
<DIV></DIV>Subject: [Alberg30] Re: BRIANS #'S
<DIV></DIV>
<DIV></DIV>
<DIV></DIV>> Is this what you guys are looking for???
<DIV></DIV>>
<DIV></DIV>> A.
<DIV></DIV>>
<DIV></DIV>> > For the benefit of those without Excel, I've
<DIV></DIV>> converted Mike's list
<DIV></DIV>> > to plain ASCII text. I also sorted the values by
<DIV></DIV>> tension on the
<DIV></DIV>> > uppers and forward lowers.
<DIV></DIV>> >
<DIV></DIV>> > Hull 277 seems to be listed twice, but I'm sure
<DIV></DIV>> that's just a typo.
<DIV></DIV>> > If anyone can draw some general conclusions from
<DIV></DIV>> this list,
<DIV></DIV>> > I think we'd all like to hear it.
<DIV></DIV>> >
<DIV></DIV>> >
<DIV></DIV>> > Alberg 30 Tensions
<DIV></DIV>> > Chesapeake Appreciation Days
<DIV></DIV>> > October 26, 1991
<DIV></DIV>> >
<DIV></DIV>> > Boat # Forestay Uppers Forward Backstay
<DIV></DIV>> > Lowers
<DIV></DIV>> > 211* BA 1340 1200 BA
<DIV></DIV>> > 129* BA 1340 1000 BA
<DIV></DIV>> > 277* BA 1340 600 BA
<DIV></DIV>> > 277* 585 1150 520
<DIV></DIV>> > 433* 780 1000 1100
<DIV></DIV>> > US17* 890 890 640
<DIV></DIV>> > 227* 1520 890 480
<DIV></DIV>> > 247* BA 780 320 BA
<DIV></DIV>> > 89 710 780 320
<DIV></DIV>> > 252 RF 780 192 1520
<DIV></DIV>> > 244* BA 710 928 BA
<DIV></DIV>> > 76* 264 710 640
<DIV></DIV>> > 548* 1340 710 600
<DIV></DIV>> > 196 RF 710 600 300
<DIV></DIV>> > 584 RF 710 520 460
<DIV></DIV>> > 451 495 530 640
<DIV></DIV>> > 543 780 460 240
<DIV></DIV>> > 138 RF 440 416 890
<DIV></DIV>> > 488 RF 380 320 890
<DIV></DIV>> > 450 RF 380 320 300
<DIV></DIV>> > 484* 300 380 120
<DIV></DIV>> > 454 460 380 120
<DIV></DIV>> > 262 460 300 168
<DIV></DIV>> > 416 780 264 168
<DIV></DIV>> > 505 890 240 520
<DIV></DIV>> > 584 780 216 192
<DIV></DIV>> >
<DIV></DIV>> > Notes:
<DIV></DIV>> > Upper Shrouds - 1/4"
<DIV></DIV>> > Lower Shrouds - 3/16"
<DIV></DIV>> > RF - Roller Furling Head Sail - tension taken on
<DIV></DIV>> backstay
<DIV></DIV>> > BA - Backstay Adjuster - Tension not available
<DIV></DIV>> > * - Indicates Racing Boat
<DIV></DIV>> > Boats with no backstay tension means fore/backstays
<DIV></DIV>> were the same
<DIV></DIV>> > Data collected by Mike Lehman
<DIV></DIV>>
<DIV></DIV>> > ATTACHMENT part 3.2 message/rfc822
<DIV></DIV>> > Date: Sat, 14 Sep 2002 07:34:38 -0400
<DIV></DIV>> > From: chrishardy <CHRISHARDY@TDS.NET>
<DIV></DIV>> > To: Alberg 30 public list <PUBLIC-LIST@ALBERG30.ORG>
<DIV></DIV>> > Subject: Re: [Alberg30]
<DIV></DIV>> >
<DIV></DIV>> > I think I saved his e-mail with the rig tension
<DIV></DIV>> > database on my computer
<DIV></DIV>> > at home but I know they must be in the archives last
<DIV></DIV>> > fall sometime maybe
<DIV></DIV>> > nov.? He had printed out a survey of rig tension
<DIV></DIV>> > from a gathering of
<DIV></DIV>> > a-30's at some point. I will try to find it chris
<DIV></DIV>> >
<DIV></DIV>> >
<DIV></DIV>>
<DIV></DIV>> =====
<DIV></DIV>>
<DIV></DIV>> Licet & Alfredo
<DIV></DIV>>
<DIV></DIV>> Free Spirit #497
<DIV></DIV>>
<DIV></DIV>>
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