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mid boom sheeting
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return trip
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April 10, 2010 - 6:27 pm
Member Since: October 24, 2009
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anyone changed to mid boom sheeting in order to accommodate a bimini?  suggestions?

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Scott Carle
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April 12, 2010 - 9:46 am
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Jason Rose's Bohdran  a DE32  has mid boom sheeting and there are a few other boats setup that way. We are planning on doing this to Valkyr soon also.

Here is the link to the information on Bohdran http://downeasteryachts.com/th.....m-projects

If you need more detailed info I would talk to Jason at http://www.jasonrose.com

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Scott Carle DE38 Cutter s/v Valkyr
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svbodhran
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April 14, 2010 - 7:45 pm
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I added the Schaefer Bridgedeck Traveller system: http://www.defender.com/produc.....sp?path=-1|118|2234|311658|312111&id=118119 

on my DE 32 just forward of the companionway.  It's held up well and is certainly up to the task for the 32.  It's supposed to be good for boats up to 38, so it should work for your boat as well.  I added two bails to the boom forward and aft of the traveller and run a 4:1 setup.  For the most part I can still handle the main by hand, but I do have a lewmar 16 that I run it to when I need it.  I drilled out the deck and reinforced the traveller holes with epoxy columns before I installed it and it's held up well. 

 

Hope that helps,

Jason Rose

DE32 Bodhran

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Scott Carle
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April 15, 2010 - 8:38 am
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Jason,

I tried to follow the link  but for some reason it didn't work. I even tried to search defenders site for the product description as well as the product id in the link above.  Not sure whant the deal on it is. Were you just looking at it on defender or is it an old link you had that might not  be any good now?

Scott

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Scott Carle DE38 Cutter s/v Valkyr
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svbodhran
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April 15, 2010 - 6:55 pm
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Sorry, I didn't realize that the link got mangled, here's tinyurl link to make sure that it fits properly:

 

http://tinyurl.com/y8y8hln

 

Jason

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Scott Carle
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April 17, 2010 - 8:16 am
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as far as I know there isn't a limitation on the forum for posting long links so I'm not sure what happend with that one. The tiny url worked great though.

scott

 

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Scott Carle DE38 Cutter s/v Valkyr
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return trip
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March 15, 2011 - 6:54 pm
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thanks for the info

at that price it sure would be nice to find a used one!!!

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Gracie Emmett
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March 16, 2011 - 9:30 am
Member Since: February 1, 2010
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Gracie Emmett always had mid-boom sheeting. We've upgrade Harken 32.2 sp ST winches to replace the line stoppers, as well as added boom preventers. Blocks and winch backing plates over sized for safety. Over sized lines mainly for hand comfort. Exact equipment specs (blocks and sheets) available for anyone interested.  de32ge@gmail.com

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Gracie Emmett
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March 17, 2011 - 4:36 pm
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A few have requested spec on the main sheet equipment on Gracie Emmett, so I’ve decided to post the details. The estimate cost for this equipment is approximately $3,000 - $4,000 depending on winch style, not including the custom winch backing plates and miscellaneous fasteners/hardware.

 

MID-BOOM MAIN SHEET- Gracie Emmett:

 

(2)  ½” Sta-Set lines, 50’  (9,600# breaking strength) ($1.99/ 100 LF = $200)

 

l(2)  Schaefer Fiddle Block with becket (Model 705-55)  2 3/8” sheave (2,250 safe working load) takes up to a 9/16” line. ($115/each = $330)

7 Series Fiddle Block with Becket Fiddle Block with Stainless Steel Cheeks and Becket.

 

Features: Universal Head design may be locked in place or allowed to swivel. Delrin sheave maintains strength and low-friction. For boats to 34'. Combine with 705-45 for a 4:1Purchase.

Specifications: Sheave Dia. 2-3/8" (60mm) Thickness 1-3/32" (28mm) Width 3-31/32" (101mm)

Length 8-25/32" (223mm) SWL 2250 lbs. (1020kg) Weight 1lb 5oz (595g) Max Line: 1/2" (13mm

 

(2) Schaefer Double Block  with univ. head(Model 504-25) 2” sheave (1,750 safe working load) takes up to a ½” line. ($92/each = $184)

 

Double aluminum block with high strength head. High-strength head retains three-way locking feature. Use with #747-08 duraratchet for complete mainsheet or vang control. Use with 5 series adapters for custom applications. Length: 5 1/16" Width: 2 1/8" T: 1 21/32" Weight: 8.3 oz.

5 Series blocks offer small to medium sized racing and cruising yachts an extremely high strength to weight ratio and oversized sheet capacity. They are true workhorse blocks and will provide years of trouble-free service. Versatile head design has a three-way, built-in locking feature and accepts multiple universal adapters for custom mounting Choose between brilliant stainless steel or tough, hardcoat anodized aluminum cheeks with UV protected Delrin sheaves or Delrin ball bearing sheaves  Sheave diameter: 2 Pin diameter: 1/4  SWL: 1,750 lbs.; ball bearing: 1,500 lbs.

 

(2) Harken winches 32.2 self tailing, two speed, with ¼” aluminum backing plates with 1” overlap from winch base. ($1,100/each = $2,200)

 

 Features:  Unique self-tailing device permits adjustment to varying line sizes by depressing a spring-loaded flange on the device and turning for proper sheet diameter. Ball bearing feeder greatly decreases friction, protects sheets and increases efficiency. Roller bearings on the interior center shaft. 17-4 PH stainless primary gears.

 

Specifications:

l        #1 Gear ratio: 2.4:1

l        #2 Gear ratio: 4.7:1

l        #1 Power ratio: 16.4:1

l        #2 Power ratio: 32.2:1

l        Fastener circle: 4-1/8"

l        Fasteners (FH): 5" x 1/4"

l        Drum diameter: 2-5/16"

l        Base diameter: 5-7/16"

l        Height: 6-7/16"

l        Weight: 11.2 lbs

l        Line diameter: Minimum – 5/16"

l        Line diameter: Maximum – 1/2"

l        Line entry height: 2-3/4"

 

 

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Isabella
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March 17, 2011 - 10:02 pm
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We recently added a traveler to Isabella.  We'll post  pics in the next few weeks as to what it looks like.  We actually took the gallows off, used the stainless to make the stand for the traveler.  We also received a fair amount of wisdom from Jason!!  He really help guide us thru this process.  Thanks Jason!!!

Suzanne

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Scott Carle
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March 19, 2011 - 8:28 pm
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We are going to be fabricating a hard doger soon for Valkyr and would like anyone that might have an idea of size and strength needed to incorporate a travelor on the back of it over the companionway. It's going to be raised up around 24 inches over the coach roof. We have been trying to figure out what size aluminum or stainless tubing or square section material to fabricate that back part with to handle the loads that the main sheet will put on it.

Scott

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Scott Carle DE38 Cutter s/v Valkyr
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Gracie Emmett
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March 20, 2011 - 6:50 pm
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Here are several photos of a DE32 with a mid-boom traveler. This boat was located in Texas and listed for $80K in 2005.

 

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Scott Carle
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March 21, 2011 - 8:34 pm
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That looks nice and would be easy for us to do.. our problem is that we are going to put it on top of the hard doger which will be about 24 inches higher than the cabin top.. I'm still trying to figure out the design and strengty of the material that is needed.

scott

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Scott Carle DE38 Cutter s/v Valkyr
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Gracie Emmett
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April 1, 2011 - 11:14 am
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These diagrams of the mid boom sheeting are from the original DE32 (cutter rig) owner's boat manual.  Although a little dated, they do show the designer's intent for the main sheet configuration.

 

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Scott Carle
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April 2, 2011 - 6:37 pm
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I have been thinking about doing something similar until I can afford a decent traveler..

scott

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Scott Carle DE38 Cutter s/v Valkyr
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Gracie Emmett
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April 2, 2011 - 7:15 pm
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The most obvious weakness in the original mid-boom sheet arrangement is the lack of purchase at the end of the main sheet. This original layout didn't have a winch, only a single starboard side cleat. You would need arms of steel and faultless sail/boom handling to work the main sheet. One good point about this arrangement is that it has two attachment points/bails on the boom.  Even with an upgraded 4:1 purchase on each side of the main sheet, we still found that sheet stoppers were not sufficient, we needed winches so that all the crew could manage the main sheet.

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Scott Carle
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April 2, 2011 - 7:34 pm
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Yep I am planning on a decent sized winch and line clutch. I haven't decided whether to go with a 4:1 or 6:1 purchase. I like the Idea of 4:1 just for how much less line you need, but the extra purchase on a main the size of ours would be nice. I've got a few projects in front of this one though so it will be a while.

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Scott Carle DE38 Cutter s/v Valkyr
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Scott Carle
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April 2, 2011 - 7:37 pm
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I have put a page up under the DE32's technical pages at http://downeasteryachts.com/th.....ig-details with the PDF's that Duane was kind enough to send in as well as the pictures above he has posted. I probably should link from the DE38 pages to it also as if someone hadn't told me it was for a DE32 I would have thought it was for our DE38.

 

Thanks for the scanned documents Duane 🙂

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Scott Carle DE38 Cutter s/v Valkyr
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timbalfour
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April 2, 2011 - 9:02 pm
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I changed the mid-boom sheeting to end boom which because of the better purchase needs only a four part tackle (at the most 5 part) and no winch (on the DE32). We removed the winch on the cabin top which may have been for the mainsheet or maybe the staysail (which doesn't need one either). So was able to get rid of a lot of extra gear (and expense) and fabricate a better 'garage' for the companionway hatch, dodger and bimini (pics on Pelli re-fit).

Anyway - the cluncky s/s traveller that had been on the cabintop is, I believe, still at the consignment shop down here in Oriental,NC and could be retrieved if anyone wants it.

Tim - 'Pelli'  DE32

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Scott Carle
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April 3, 2011 - 11:42 am
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Tim,

How long is the travelor? How much do you want for it? What size/brand is it for fitings?

 

My plan was to get one that extends the width of the top of the hard doger which will be about 12" less in width than the coach roof at the companionway. 🙂

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Scott Carle DE38 Cutter s/v Valkyr
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timbalfour
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April 3, 2011 - 8:33 pm
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Hey Scott - I think it is only between 3 and 4 ft. long! I  had assumed it was the original, but looking through the original specs/documents etc. it obviously wasn't as she was originally tiller steered with aft sheeting. So the wheel/pedestal and mid-boom sheeting must have been a conversion. The consignment store is closed Mondays, but I'll check it out during the week and take a photo of it with measurements. I can't see many people with siutable boats around that could use it - so it's yours if you want it for free (or anyone else if you don't).

Tim - 'Pelli'  DE32

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Scott Carle
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April 4, 2011 - 11:12 am
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Cool... I'm definately interested... at your convenience though... 🙂 it's not a project that will be happening in the next month or two 🙂

If you can maybe measure the length and width of track and if you can a picture 🙂

 

Thanks,

scott

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