Search found 206 matches

by EarthBM
Thu 12 Nov 20, 20:38
Forum: DF920 General Topics
Topic: DF920 Touring vs Racing
Replies: 5
Views: 3344

My recollection is that there were only two versions of 920 - think "racing" wasn't something marketed by Quorning as a separate model. I think owners themselves probably added some sporty equipment and designated their boat as "racing". 920 is the only Dragonfly where "extr...
by EarthBM
Fri 26 Jul 19, 19:36
Forum: HULL issues concerning all DFs
Topic: Centerboard Jams
Replies: 3
Views: 3840

Hey John, the memories fade but I think there was a white nylon rectangular bar attached to the board that straddled the width of the trunk and prevented the downhaul line from sliding between the board and the trunk.
by EarthBM
Thu 24 May 18, 21:05
Forum: DF1000 General Topics
Topic: Losing Weight
Replies: 20
Views: 19947

TC, did you tension /adjust the water stays much? Do you happen to have some pictures?
by EarthBM
Thu 12 Apr 18, 2:51
Forum: General
Topic: replacement nets
Replies: 6
Views: 5948

Thanks!

I wanted the Net-sys dyneema nets, but just don’t have the skills/time to saw/lash/design the perimeter properly. ATN makes a finished product in the right dimensions/geometry, ready to install.
by EarthBM
Sat 31 Mar 18, 17:04
Forum: General
Topic: replacement nets
Replies: 6
Views: 5948

The single best safety upgrade I think.

Etienne at ATN sized a polyester open mesh for my 35. Somewhat tricky with the bolt rope hull attachment, needs those individual sliders.
by EarthBM
Tue 13 Mar 18, 3:55
Forum: DF28 Rig/Sails
Topic: Dragonfly for passages
Replies: 1
Views: 4313

The cruisers forum thread is as comprehensive as you’ll get. Not many Df1200s have circumnavigated because not that many have been built. I for one would have no problem going around the globe in my DF 35, if I had the time.
by EarthBM
Wed 28 Feb 18, 19:25
Forum: General
Topic: Capsize
Replies: 30
Views: 56835

Another turtled DF28: https://m.youtube.com/watch?v=8u0wP1mP7v8

Here it looks like attaching a bridle to the ama and main hull bows and towing it over the stearn could right it at sea. And this was the water has the clear escape path from the cabin.
by EarthBM
Tue 19 Dec 17, 5:02
Forum: DF1000 General Topics
Topic: dragonfly 1000 stability with amas folded
Replies: 3
Views: 4882

Ditto
by EarthBM
Wed 06 Dec 17, 19:15
Forum: General
Topic: mooring place with low tide level
Replies: 13
Views: 14576

Feels like hiring an excavator to deepen the bottom could be a good investment
by EarthBM
Thu 01 Jun 17, 16:59
Forum: DF35 Hull
Topic: Rudder downhaul cable
Replies: 6
Views: 6312

Thanks Mika, looks like a good improvement.
by EarthBM
Thu 01 Jun 17, 0:46
Forum: DF35 Hull
Topic: Rudder downhaul cable
Replies: 6
Views: 6312

Great idea about the second rope! This way it will also give the signal that the first one broke (when the rudder slips aft)! Thanks Mika! One-off rudder? Just higher aspect ratio or something else? Have you considered adding winglets? I asked about them here: http://forums.sailinganarchy.com/index....
by EarthBM
Tue 30 May 17, 18:13
Forum: DF35 Hull
Topic: Rudder downhaul cable
Replies: 6
Views: 6312

I am thinking about that. What diameter Dyneema do you use? Do you use thimbles and splicing to preserve breaking strength or just oversized rope? At least on the 35 it goes through a 90-degree bend in the pipe and would rub against it (no way to have a block there). I guess the pipe is smooth enoug...
by EarthBM
Mon 29 May 17, 19:24
Forum: DF35 Hull
Topic: Rudder downhaul cable
Replies: 6
Views: 6312

Rudder downhaul cable

I got a couple splintered strands in the cable that connects the rudder itself to the downhaul line. So remembering Larry's advice I want to replace it, but the eye fitting doesn't get through the 90-degree elbow in the metal tube. I could just cut the cable and replace it with one that has one of t...
by EarthBM
Tue 19 Jul 16, 15:30
Forum: General
Topic: DF35 Centreboard Downhaul
Replies: 3
Views: 5007

I found the diagram, don't know how to post though. Email me at my username at gmail and I'll send it to you .
by EarthBM
Tue 19 Jul 16, 15:23
Forum: General
Topic: DF35 Centreboard Downhaul
Replies: 3
Views: 5007

There is a diagram in the printed boat manual. It is fairly straightforward with the lines in red and green. There is a hole at the corner of the board. The line enters it and then there is a round opening in one of the sides. Not unlike some IKEA furniture. You tie a knot and it resides in that ope...
by EarthBM
Sun 10 Jul 16, 17:49
Forum: DF28 Rig/Sails
Topic: Code Zero for DF28 Touring
Replies: 1
Views: 4683

if your winds are <12 knots half the time it makes sense. If they are <9kt you can use Code 0 cloth, otherwise heavier.

I Used Randy Smyth designed screacher. You are probably looking at something like $5000 for df28

Check threads in the DF 35 section
by EarthBM
Sun 10 Jul 16, 17:44
Forum: DF28 General Topics
Topic: Pressure on helm/rudder
Replies: 6
Views: 8688

I've heard some accounts of how a more stretchable rope (nylon) works better because it absorbs shocks via elasticity rather than slippage. But in general this should not happen. My rudder had to be faired with sandpaper because it did not fit perfectly into the cassette. I pull really hard on the r...
by EarthBM
Sat 04 Jun 16, 1:28
Forum: Rig/Sail issues concerning all DFs
Topic: Replacement Mainsail
Replies: 8
Views: 8459

Are you zipping up the sails when not in use? 3 seasons for Technora sound like something is not done right.
by EarthBM
Thu 14 Apr 16, 22:11
Forum: DF35 General Topics
Topic: What dodger is this?
Replies: 0
Views: 5666

What dodger is this?

Saw it in this http://www.yachtworld.com/boats/2011/Qu ... xAG5fDEynM listing.

Mine has gone totally opaque, perhaps from Port of Long Beach diesel fumes.
by EarthBM
Wed 02 Mar 16, 5:13
Forum: DF35 General Topics
Topic: Air Conditioning
Replies: 2
Views: 4853

Fort Lauderdale -- neighbor! Can't answer directly, because I haven't, but also would chip in that you don't need it. The inside space is simply not big enough to spend a lot of time there. Having said that, the heater system works pretty well, so the ducts are there, no reason one can't put A/C in.
by EarthBM
Sat 27 Feb 16, 4:30
Forum: General
Topic: California - Florida Dragonfly 35/1200 swap?
Replies: 6
Views: 7265

Yep, this is what the owner of another DF 35 Tri Vector did. Cost $12k Oakland - Miami.

Use tax alone on buy/sell transaction will be more than that. Hence I was just thinking shared use / swap.
by EarthBM
Wed 24 Feb 16, 5:36
Forum: General
Topic: California - Florida Dragonfly 35/1200 swap?
Replies: 6
Views: 7265

Yep, this is an option, although feels wrong -- sailing it over is much more in the spirit of it! Sailing it down from Seattle to LA (with our own Steve B!) was one of the weeks in my life that I still look back to fondly. Things look pretty shallow around here and in the Bahamas -- perfect for a Dr...
by EarthBM
Tue 23 Feb 16, 5:30
Forum: General
Topic: California - Florida Dragonfly 35/1200 swap?
Replies: 6
Views: 7265

California - Florida Dragonfly 35/1200 swap?

So I moved to a new job in Boca Raton, FL, and miss my 35 on the west coast. One solution is to sail it down to Panama and then up to Florida. The problem of course is that from Panama it's uphill motoring mostly, as far as I can tell. (and I have a job where I can only take one week vacations far a...
by EarthBM
Fri 09 Oct 15, 22:52
Forum: DF1000 General Topics
Topic: Losing Weight
Replies: 20
Views: 19947

Re: Thanks everyone!

Ivan, pics: Yes. I've a big picture view, but no details as I'm still working out how to finish the edges. Please click on any of the photos to see them enlarged! http://www.dragonfly-trimarans.org/images1000/net1_s.jpg http://www.dragonfly-trimarans.org/images1000/net2_s.jpg Thanks for these -- se...
by EarthBM
Sun 27 Sep 15, 17:03
Forum: General
Topic: Dragonfly 28 capsize ?
Replies: 9
Views: 10772

Virtual copy/paste of my table from another DF 28 capsize thread... the last line shows the "righting moment index": 28S is two times less stable compared to 35T.... the 28 was built to get under 10 meters when folded to get away with registration and tax in some Euro countries. Here is my...
by EarthBM
Sun 27 Sep 15, 16:50
Forum: DF1000 General Topics
Topic: Losing Weight
Replies: 20
Views: 19947

Thanks for the good detailed report!

Could you post pictures of the Net-Systems Ultra Cross trampoline?
by EarthBM
Tue 04 Aug 15, 15:13
Forum: Rig/Sail issues concerning all DFs
Topic: Breaking Battens on DF28
Replies: 7
Views: 8035

or can just execute a regular jibe properly... dead downwind is a pretty mellow place... get to ~160 apparent wind angle, bring the mainsail dead center, both traveler and mainsheet, jibe to 160 apparent on the other side, bring your genoa over, release the mainsheet, move the traveller where you wa...
by EarthBM
Mon 13 Jul 15, 22:00
Forum: Rig/Sail issues concerning all DFs
Topic: Waterstays
Replies: 9
Views: 9559

right, forgot about the hard windshield on the 1000 (1000 is the best looking DF in my view, in part because of that screen and the scoop aft of the traveler.) Very keen to see your result with the nets. I simply can't allocate enough time to the project (restitched the nets with Tenara meanwhile, p...
by EarthBM
Sun 12 Jul 15, 19:10
Forum: Rig/Sail issues concerning all DFs
Topic: Waterstays
Replies: 9
Views: 9559

Great blog!

How did you source the polycarbonate screen ? Looks great.
Did you stitch it to the old dodger?

Bookmarked the blog!
by EarthBM
Mon 15 Jun 15, 22:19
Forum: HULL issues concerning all DFs
Topic: Tramps - repair or replace?
Replies: 6
Views: 7948

I would really like to replace factory trampolines with more open mesh:
http://dragonfly-trimarans.org/phpBB/vi ... .php?t=620

So far this is just a project in my head. But with some threads giving up I may actually try to do something about it later this year
by EarthBM
Wed 03 Jun 15, 16:26
Forum: Rig/Sail issues concerning all DFs
Topic: Main halyard block failure (2:1 purchase)
Replies: 8
Views: 9467

Thanks, but how do you attach the block to the mainsail headboard -- with a rope shackle?
by EarthBM
Mon 01 Jun 15, 16:47
Forum: Rig/Sail issues concerning all DFs
Topic: Main halyard block failure (2:1 purchase)
Replies: 8
Views: 9467

Mika, does your Dyneema halyard not slip through the clutch? (which do you have -- Easylock or Spinlock?)

The Karver block look neat -- do you have a pic of how you attach it to the sail? Does the halyard not get out of the groove when the rope is loose?
by EarthBM
Sun 21 Sep 14, 6:53
Forum: Motor/Equipment/Electrics issues concerning all DFs
Topic: VDO water tank level sensor
Replies: 1
Views: 4832

VDO water tank level sensor

After the tank was empty for a few weeks, the sensor is sending readings al over the place, including twice the tank capacity (eg 200+ liters).

Does anyone know how to reset/recalibrate it?
by EarthBM
Tue 19 Aug 14, 19:16
Forum: HULL issues concerning all DFs
Topic: Has anyone installed hatch locks in the amas?
Replies: 10
Views: 10041

Can report good experience with contacting BSI directly (bsidk.com -- marine -- contact). Bought 10 outside handles at $8/each plus shipping.

BSI part XO2206731
by EarthBM
Fri 15 Aug 14, 6:41
Forum: HULL issues concerning all DFs
Topic: Has anyone installed hatch locks in the amas?
Replies: 10
Views: 10041

I am thinking http://www.defender.com/product3.jsp?pa ... id=1568522

$54/pair

Just need to look at it in person to make sure I understand how it will fit
by EarthBM
Thu 14 Aug 14, 22:47
Forum: HULL issues concerning all DFs
Topic: Has anyone installed hatch locks in the amas?
Replies: 10
Views: 10041

Outside handle... $35 for a single piece of plastic... These custom parts are ready for 3d printing... http://www.rigrite.com/Hardware/Hatch_%26_Port/_derived/Moonlight%20Hatch%20Parts.html_txt_Moon%2062H-HOS.gif Since they are so brittle and I'll need more I'll just replace them with Lewmar. $9.95 ...
by EarthBM
Fri 25 Jul 14, 22:41
Forum: DF35 General Topics
Topic: Haul out harness specs
Replies: 11
Views: 11285

I hear you on aligning the eyebolts! Also on splicing... The problem is that I haven't done it, and this is probably not the best first application... Will find a rigging shop I guess. The excellent http://www.bethandevans.com/load.htm resource basically shows splices in the 95% area of breaking loa...
by EarthBM
Fri 25 Jul 14, 17:32
Forum: DF35 General Topics
Topic: Haul out harness specs
Replies: 11
Views: 11285

Thanks Bo! Looks like sideways loads on the eyebolts are ok for 920's weight, based on the angles in the picture. Larry, I don't have the cradle anymore. Think the link I posed in the previous post is the rail car you just described. I tried lifting with the platform and abandoned it in the process,...
by EarthBM
Fri 25 Jul 14, 6:22
Forum: DF35 General Topics
Topic: Haul out harness specs
Replies: 11
Views: 11285

Thanks Larry, this should work if not too windy.

Have you ever tried using the "platform lift" (you sail over the platform, then blocks are placed under the bottom and drom the sides, then the platform lifts)?

Kind of like this:
http://tiptopwebsite.com/photos4/6400marina/26.jpg
by EarthBM
Fri 25 Jul 14, 1:03
Forum: DF35 General Topics
Topic: Haul out harness specs
Replies: 11
Views: 11285

Found the picture. http://www.dragonfly-trimarans.org/images35/crane_s.jpg Please click on the photo to see it enlarged! It's not a rectangle - just a fore and aft straps to align the rope with the eyebolts... Even if the four ropes going from the eyebolts to the crane hook are long enough to clear ...
by EarthBM
Fri 25 Jul 14, 0:32
Forum: DF35 General Topics
Topic: Haul out harness specs
Replies: 11
Views: 11285

I want to construct my own harness from .5" Dyneema (15.4 ton ISO strength). Splice the ends that go through the eye bolts, and splice+shackles on the other end. I recall that the factory harness had a strap rectangle that united all four lifting roped in the middle. What's its purpose? I cant ...
by EarthBM
Wed 02 Jul 14, 4:32
Forum: General
Topic: DF 800 Weather Helm
Replies: 3
Views: 5627

The easiest is to pull the centerboard up a bit, like 10cm of the board downhaul worth.
by EarthBM
Sun 13 Apr 14, 19:56
Forum: DF1200 Rig/Sails
Topic: Rudder Downhaul
Replies: 3
Views: 8503

Larry, did yours come off? Sounds like a spare that should always be on board.

Is there no synthetic solution?
by EarthBM
Wed 26 Feb 14, 6:44
Forum: DF1000 General Topics
Topic: DF 1000 polar
Replies: 9
Views: 10460

Thanks. That's beyond my knowledge. I did buy a Comar nmea-wifi bridge, installed it last weekend. Seems to work well, so I will start building real world polars in iRegatta soon.
by EarthBM
Fri 07 Feb 14, 18:35
Forum: DF1000 General Topics
Topic: DF 1000 polar
Replies: 9
Views: 10460

What bridge model are you using please? Is it connected to NMEA 183 output wire or something else? Hi EarthBM, Did you get your serial to wifi bridge working? I had similar problems with my own serial to wifi bridge at the beginning. After changing the port to 10110 suggested somewhere over the inte...
by EarthBM
Sun 26 Jan 14, 7:38
Forum: DF1000 General Topics
Topic: DF 1000 polar
Replies: 9
Views: 10460

Hi Mika, how was your Barcelona- Adriatic sail?

The nmea-wifi bridge is from http://www.madmanmarine.com/ , but when I installed it today the nmea sentences were garbled up and iRegatta could not read them.
by EarthBM
Wed 22 Jan 14, 22:44
Forum: DF1000 General Topics
Topic: DF 1000 polar
Replies: 9
Views: 10460

Check out 2007 Yacht World article on the dragonfly.dk press page. It has dr 35 poplars that seem accurate in flat water. I am getting an NMEA - wifi device (just $120 or so), which should allow me to build actual polars in iRegatta. Bottom line you can get close to wind speed on a reach in 10 knots...
by EarthBM
Tue 31 Dec 13, 0:40
Forum: DF35 Rig/Sails
Topic: Code 0
Replies: 38
Views: 734068

Well since we haven't had any posts for months (not even about the Barcelona-Slovenia delivery), here's what I did about the undersized (for the 1:1 screacher halyard) Easylock. I added a rope clutch. It holds the halyard well by itself, but I close the Easylock too just in case. http://imageshack.u...
by EarthBM
Fri 04 Oct 13, 17:21
Forum: General
Topic: Delivery Barcelona-Slovenia
Replies: 6
Views: 7324

How was it?