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Project

Junk Rig

Active / evolving

Building and developing Seeker’s three-masted junk rig, including masts, sails, battens, yards, rigging, reefing, sail handling, and lessons learned at sea.

Featured video

Chinese Junk Sails and the Mast

Published 2016-09-03

Start here for the Junk Rig story.

Starts at 03:13

Videos

Videos follow the project timeline. When Part 1 of a series is reached, the complete series stays together before the timeline resumes.

Cummins Diesel from School Bus to Sailboat
Bringing Home a Sailboat Mast
Paul's 65ft Origami Steel Chinese Junk Sailboat
SUBMARINE FOR SALE
Origami Boat Building - Bulkheads - Part 3
Origami Boat Building - Deck Braces - Part 2
Boat Building Tour and Invitation
Bulwarks - Part 3
SV Seeker Tour and Invitation
Cabin Tops - Part 2
Deck Crane - Part 1
Rails to Sails
Sticking the Hull
Chinese Junk Sailboat - Catwalks and Keels and Engine
Mast, Keels, and Portholes
Dragons and the Main Mast
Dragons and the Main Mast - Part II
Main Mast and Gangway and Assorted Repairs
Portlights and Rigging and thinking about moving
Fix a Bent Lawn Mower Shaft
Mast, Capstan, and Frames
Junk Sails and Beautiful Frames
Mast and Chinese Junk Sails and other stuff
Sails & Keels & Frames & Viewports
Fuel Tank Lids and Junk Sails
Tanks, Flooring, Layout, and Salty Dogs
Foremast & Sole & Deck Hatch & CNC Routing
Engine Room Sole and Mainmast Step
Bow Roller, Rudder, Deck Crane and more
ROV Wiring - Arduino, Relays, ESC, Outrunners, Bow Thruster and more.
Seeker LIVE Feb 18, 2017 - ROV and Davits
Seeker LIVE - Apr 22, 2017 - Bulwarks, Casting Anodes, Chain Gypsy, Welder Generator, New Mugs, ButtonUp Kickstarter
Seeker LIVE - Apr 29, 2017 - Sewing Sails, New T-Shirts, Hause Hole, Tesla
Seeker LIVE - May 6, 2017 - Welding, Work Table, Sailmaking, Grommets
Mizzen Mast Step, Davits, Rudder Chain and Cable
Seeker LIVE - May 13, 2017 - Hand Rails, Davits, Roping Sails, Tornadoes
Roping Sails, Hatches, Handrails and Build or Buy a Boat
SV Seeker Live - Jun 3, 2017 - Hatches, Deck Bolts, Sails, Boat for Sale, Pulley Design
SV Seeker Live - June 10, 2017 - Davit Winch, Deck Bolts, Block & Tackle
Junk Rig Sailmaking - the Mizzen Sail
SV Seeker Live - June 17, 2017 - Deck Tiles, Tender Winch, Sewing Sails, T-Shirt Sale
SV Seeker Live - June 24, 2017 - Keel Fuel Tank, Truck Axles, Shop Safety, Makercise
POR15 Fuel Tank Sealer - Big Boat Trailer and more
Main Mast Pipes Joined Together
Sailboat Mast and Sails
Bow Rollers, Sails, Tormach CNC and more
Junk Sails, False Seams, ROV Wiring, Reed Switches, Pololu 2808
Draken Harald Hårfagre - Mystic Seaport, Connecticut
Mystic Seaport - Mystic Connecticut
Coast Guard Patrol Boat to Chinese Junk Motorsailer Conversion
DIY Boat Building - Welding Stainless Steel Pipe, Painting, and Engine Room Stuff
Building A Chinese Junk - Engine Exhaust, Water Tanks, Hatches and Gaskets
SV Seeker Live - Jan 27,2018 - Tender, Mastheads, NiFe Batteries
Sail Masthead and VMAC Multifunction Welder
Finishing the Masthead and making a home for the VMAC
Diesel Jet Boat Build - Part 6 - Flotation Foam
Building Their Own Ocean Going Boats
The Mind of a Boat Builder - Acorn to Arabella
The Mind of a Boat Builder - Zora
Sailmaking - Chinese Junk Sails - Step by Step
SV Seeker Live - Main Hatch Opener, Kamando Joe, Diesel Jet Boat
Live - Tour and Future Plans
Roping Sails
Hydraulics - Part 1 - Bending, Fitting, Threading, and TIG Welding
Chinese Junk Rig, Roping, Grommets, Patches, Sheaves, and Battens
CNC Mill-Lathe Sheaves and Alloy Junk Rig Battens
Yards and Sheaves and Other Boat Building
Mast Heads - CNC Pulleys - Sheaves for you sailors
Naval Architect Marine Surveyor - Boat Tour
Painting the Boat - Part 4 - Rudder, Foksal and Air Conditioning
Painting the Boat - Part 10 - Spraying Epoxy Paint
Red Cedar, Head, Helm, Mermaids, Fiberglass Boat, and CNC
Industrial Coatings - Example of Failures
Welcome to SV Seeker
Wheels for the Boat - Part 2
Wiring the Boat - Part 1
Navigation Lights and Sail Rigging - Part1
Navigation Lights and Sail Rigging - Part 2
Boat Building - Odds and Ends
Navigation Electronics - Part 1 - Selecting a System
Lazy Jack Boom
Wheels for the Boat - Part 10 - Brakes and a Flat Tire
Sailing Camp - Part 1
Sailing Camp - Part 2 - Basics of Bluewater Sailing
Sailing Camp - Part 3 - Routes and Charts
Sailing Rig Failure at Sea
SV Seeker Launch
Fire, Flood, Listing, Engine Failures and other Dockside Calamities
Starting Down the River
Raising Sails - Part 1
Raising Sails - Part 2
Raising Sails - Part 4
Engine and Sails
Raising Sails - Part 4 - Mistakes Were Made With Jubilant Swearing
Raising Sails - Part 5 - Adding Parrels to a Junk Rig parrels
Raising Sails - Part 6 - Welding in the Mast
Masterbuilt Propane Grill
Down the Mississippi at Historic Low Water - Vicksburg to Baton Rouge
Into the Gulf of Mexico
Back to Work on the Boat
My Oil Spill and Some Sail Work
B&G WS320 Wireless Wind Sensor
Boat Brackets Braces and Supports
Raising Sails - Part 7 - with Eric d'Alliy
Raising Sails - Part 8 - First Sail
Raising Sails - Part 9 - Foresail Modifications
Raising Sails - Part 9 - Foreward Sail Modifications
Railsing Sails - Part 10 - More Foresail Mods and TIG Weld Distortion - Patrons Only
Raising Sails - Part 11 - Cheek Blocks - Patrons Only
Raising Sails - Part 11 - Cheek Blocks
Raising Sails - Part 10 - More Foresail Mods and TIG Weld Distortion
Mainsail Yard Reinforcement - Patron Only
Mainsail Yard Reinforcement
Mast Conduit Problem
Mast Climbing - Patrons Only
Mast Climbing -- No ads for our supporters
Block and Tackle - Patrons Only
Block and Tackle and Rigging a Chinese Junk
No More Clanging Mast - Patrons Only
No More Clanging Mast
Rick Day - Boats and Friends - Patrons Only
Rick Day - Boats and Friends
Seeker Anchors in the Twilight Zone
SV Seeker Training Video - Part 1 -Tour
Sailing Trials and Modifications
Save Electricity with a Simple Meter
Davit Upgrade, Sheet Clutch Dissection, and Sharks - Patrons Only
Davit Upgrade, and Sharks
Sailing into Failure
Sail Repair - Part 1
Rebuilding from Failure
Hurricane Two Step
Make a Deck Shade from Scratch
Black Water Tank and Other Upgrades
The Ultimate Sailboat Workshop
Stopping the Crazy Gybe
Build the Box from Pallets but Think Outside It
Fixing the Broken Battens
Fort Pierce Repairs - Part 1
Worst Possible Time
Stormy Sailing North to St Augustine
Stormy Weather Sailing to St Augustine
St Augustine Repairs
Bracing for Hurricane Milton
Shipwrecked by Hurrican Milton
Shipwrecked by Hurrican Milton Part 1
Welcome to Sailing Vessel Seeker
Red over Green I'm a Sailing Machine
Wind, Current and Depth for Sailing
B&G WS320 Wireless Wind Sensor Installation and Repair After 2 Years
Diesel Engines for Boats or Submarines
Two Examples of Origami Boat Structural Design
Your Dreams
Savannah to Key West
Helping a Friend
Main Halyard Chafing Mitigation
Inflexible Schedule Ends Expedition

Components & concepts

Principles demonstrated

Evidence sources

Sources are ordered by their role and reliability, not by volume.

Journey

Sources and discussion

Primary evidence appears first. Community discussion follows. Outside forums are commentary and may include speculation or inaccuracies.

Primary evidence

Videos

Videos, transcripts, website material, and Doug-authored project posts.

Raising Sails - Part 4

Videos · weight 7.64

Bringing Home a Sailboat Mast

Videos · 2011-08-29 · weight 6.00

Mast, Keels, and Portholes

Videos · 2016-04-11 · weight 6.00

Dragons and the Main Mast

Videos · 2016-05-24 · weight 6.00

Dragons and the Main Mast - Part II

Videos · 2016-06-01 · weight 6.00

Main Mast and Gangway and Assorted Repairs

Videos · 2016-06-07 · weight 6.00

Chinese Junk Sails and the Mast

Videos · 2016-09-03 · weight 6.00

Mast, Capstan, and Frames

Videos · 2016-09-14 · weight 6.00

Junk Sails and Beautiful Frames

Videos · 2016-09-19 · weight 6.00

Mast and Chinese Junk Sails and other stuff

Videos · 2016-09-26 · weight 6.00

Fuel Tank Lids and Junk Sails

Videos · 2016-10-12 · weight 6.00

Mizzen Mast Step, Davits, Rudder Chain and Cable

Videos · 2017-05-13 · weight 6.00

Junk Rig Sailmaking - the Mizzen Sail

Videos · 2017-06-13 · weight 6.00

Main Mast Pipes Joined Together

Videos · 2017-07-05 · weight 6.00

Sailboat Mast and Sails

Videos · 2017-07-11 · weight 6.00

Sailmaking - Chinese Junk Sails - Step by Step

Videos · 2018-08-21 · weight 6.00

140 additional references are indexed for search.

Primary evidence

Transcripts

Videos, transcripts, website material, and Doug-authored project posts.

Bringing Home a Sailboat Mast

Transcripts · 2011-08-29 · weight 2.25

Can't here we are taking a mast off the

Mast, Keels, and Portholes

Transcripts · 2016-04-11 · weight 2.25

it home somehow. We went after a mast,

Chinese Junk Sails and the Mast

Transcripts · 2016-09-03 · weight 2.25

mast. It doesn't need to be welded,

Foremast & Sole & Deck Hatch & CNC Routing

Transcripts · 2016-12-07 · weight 2.25

the mast step and the center of the boat

Engine Room Sole and Mainmast Step

Transcripts · 2016-12-13 · weight 2.25

That's the main mast step going in,

Engine Room Sole and Mainmast Step

Transcripts · 2016-12-13 · weight 2.25

that, the mast hollow

SV Seeker Live - Jan 27,2018 - Tender, Mastheads, NiFe Batteries

Transcripts · 2018-01-27 · weight 2.25

main mass. And we're a Chinese junk rig

SV Seeker Live - Jan 27,2018 - Tender, Mastheads, NiFe Batteries

Transcripts · 2018-01-27 · weight 2.25

mast, all the sails on a junk rig,

SV Seeker Live - Jan 27,2018 - Tender, Mastheads, NiFe Batteries

Transcripts · 2018-01-27 · weight 2.25

to the port side of the mast. And the

SV Seeker Live - Jan 27,2018 - Tender, Mastheads, NiFe Batteries

Transcripts · 2018-01-27 · weight 2.25

main mast, this one, they're over on

SV Seeker Live - Jan 27,2018 - Tender, Mastheads, NiFe Batteries

Transcripts · 2018-01-27 · weight 2.25

mast. It's only a six inch pipe, I

Finishing the Masthead and making a home for the VMAC

Transcripts · 2018-02-05 · weight 2.25

on that mast down there

Mast Heads - CNC Pulleys - Sheaves for you sailors

Transcripts · 2019-06-03 · weight 2.25

the top of the mast. There's ropes that

Mast Heads - CNC Pulleys - Sheaves for you sailors

Transcripts · 2019-06-03 · weight 2.25

here because we have three mast. This

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

do in fact I gotta straighten that mast

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

that I do need to lower the mast. But

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

mast and there's a lot of steel

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

of the mast passed through the deck so

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

we're working on that mast up there this

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

mast, I think some lead ballast stuck

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

where the mast comes through from above

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

mast, and it's actually a fantastic

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

down a steel mast through a steel hole

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

the mast into the water. Captain Cook

Raising Sails - Part 6 - Welding in the Mast

Transcripts · 2022-08-16 · weight 2.25

anchor chain hauled to the top of a mast

146 additional references are indexed for search.

Community discussion

Facebook discussion

Questions and discussion from the Seeker community. Useful context, but not automatically verified engineering evidence.

Facebook comment

Facebook discussion · Sean McCambridge · 2025-06-24T21:27:25.000Z · weight 1.00

Thanks for the wisdom! Have to remember to live today. I keep hoping to sail by your junk rig with my junk rig. One day soon...

Facebook comment

Facebook discussion · Peter Heuke · 2025-09-19T22:45:59.000Z · weight 1.00

Mast envy?😳

Facebook comment

Facebook discussion · Chris Maus · 2025-09-20T02:19:59.000Z · weight 1.00

Welcome to the Patuxent. Nice chatting with ya when I popped by on the jet ski. Night mast lights look awesome!

Facebook comment

Facebook discussion · Bob Mink · 2026-01-09T17:09:44.000Z · weight 1.00

...you included your designers. Just wondering .... A lot of your metal hull design and junk rig look a lot like Tom Colvin boats. Any connection ? I almost bought one of his boats 30 years ago. Since then I have owned a Morgan and O'Day. Fair winds !

Facebook reply

Facebook discussion · John Gordon · 2026-03-13T20:40:14.000Z · weight 1.00

Doug Jackson 4 mast "climbs" this week. 2 on a friend's boat and 2 on ours. Couldn't ask for a nicer place than the Bahamas to do it!

Facebook reply

Facebook discussion · Thad Van Gilder · 2026-04-08T15:25:44.000Z · weight 1.00

Doug Jackson that’s true… I guess she is technically a tern schooner with a junk rig

Facebook comment

Facebook discussion · Bob Hartzell · 2026-05-05T22:46:56.000Z · weight 1.00

love me a junk rig! I feel like the rarest rare having sailed on once for a month in west florida...

Facebook comment

Facebook discussion · Vince Williams · 2026-06-03T18:06:08.000Z · weight 1.00

Tell her she can see better from the tractor seat on the mast

Commentary

Sailing Anarchy

Public commentary and opinion. It may include speculation, errors, or incomplete information and should not be treated as verified technical evidence.

Sailing Anarchy post #1055 page 53

Sailing Anarchy · weight 0.80

...eading his books & correspondence over many years, plus sailing my own and a friend's junk rig. I'm no expert. FKT Why the fuck does he all those welded metal pipes in his sail? What the hell is wrong with this guy?

Sailing Anarchy post #1065 page 54

Sailing Anarchy · weight 0.80

...lming, editing and publishing. So chances are there will be a spectacular capsize (or mast breakage) but we won’t see it.

Sailing Anarchy post #11089 page 555

Sailing Anarchy · weight 0.80

Tom recommended Top Gun for junk sails and used it himself for many years. I sewed mine 6 years ago and they've been trouble-free ever since. Unlike the Hasler type rigs my sails have vertical seams so the sail is very strong. Unlike marconi type sails, the ju...

Sailing Anarchy post #11100 page 555

Sailing Anarchy · weight 0.80

...stly. There are a bunch of people on the Junk Rig Association that have made cambered junk sails to improve windward performance. A friend of mine did it, keeps trying to talk me into doing it too. Not going to happen, if I want to point higher I just fire up...

Sailing Anarchy post #11997 page 600

Sailing Anarchy · weight 0.80

Other than the tractor seat atop the main mast, I haven't seen a lot of humour in Dugg's creations. I think he takes himself quite seriously.

Sailing Anarchy post #1224 page 62

Sailing Anarchy · weight 0.80

...ma. After all, there's no fixed boom gooseneck and (generally) no topping life with a junk rig, you really need the lazy jacks to hold the lowered sail bundle. FKT He's got the harbor freight blue clicky strap lazy jack system..

Sailing Anarchy post #1264 page 64

Sailing Anarchy · accnick · weight 0.80

Bit late, but why the fuck is the fwd mast raked so far fwd is that how it's going to stay ? What the fuck is that yellow ladder thing on the stb side ? How are they going to sheet the aft most sail that hangs way off the stern ?

Sailing Anarchy post #1265 page 64

Sailing Anarchy · accnick · weight 0.80

...popcorn, this project is like a fuckup fractal. Bit late, but why the fuck is the fwd mast raked so far fwd is that how it's going to stay ? What the fuck is that yellow ladder thing on the stb side ? How are they going to sheet the aft most sail that hangs wa...

Sailing Anarchy post #1266 page 64

Sailing Anarchy · accnick · weight 0.80

Junk rig It's to make up for not a forward jib/jenny. Balance the sail plan. That's the idea - Not that the maker of this boat has any clue about sail plans or rigging. He read it in a book, and thought it would look cool. Like the mermaids on the side of his...

Sailing Anarchy post #1275 page 64

Sailing Anarchy · weight 0.80

...d explanation in one of Tom Colvin's books. FKT Bit late, but why the fuck is the fwd mast raked so far fwd is that how it's going to stay ?

Sailing Anarchy post #1277 page 64

Sailing Anarchy · weight 0.80

You don't need a fucking downhaul on a junk rig. Trust me. FKT OK, well this EXPLAINS it. The lack of any way to downhaul and sheet in these sails as the vessel sits in the water today is because they don't show on this drawing

Sailing Anarchy post #1281 page 65

Sailing Anarchy · blunderfull · weight 0.80

Hey, come on now , I’m here for the sailing. Never seen a junk rig under sail. As long as he never tries to sail it...

Sailing Anarchy post #1282 page 65

Sailing Anarchy · weight 0.80

...lly when your battens are made from steel pipe You don't need a fucking downhaul on a junk rig. Trust me. FKT

Sailing Anarchy post #1283 page 65

Sailing Anarchy · weight 0.80

...Martin used to say, "Well EXCUUUSE ME!!!!". As you can see, I dont know diddly about junk rigs except for the model one of my ancestors brought back from the other side of the world many decades ago that sits on my shelf. The foot is secured to the mast with...

Sailing Anarchy post #12870 page 644

Sailing Anarchy · weight 0.80

...se, how many alleged "sailing vessels" have a tractor seat welded to the top of their main mast and a water maker that makes nothing? That Dugg, he is something else! Exactly. And I bet that glorified dinghy didn't have a Tormach lathe, 3-D printer and an ice...

Sailing Anarchy post #1307 page 66

Sailing Anarchy · weight 0.80

...if it annoys me more that this thing is going to besmirch the good name of the modern junk rig for a generation, or because Doug in his infinite knowledge and skill probably built retro flat panel sails rather than cambered.

Sailing Anarchy post #13089 page 655

Sailing Anarchy · weight 0.80

Nice thing about junk sails - you just lower them into the lazy jacks and presto - there's your flaked sail. Nothing more required. Mine sit in crutches and yeah I do lash them down because I learned that despite the weight of the sail bundle, battens and top...

Sailing Anarchy post #1310 page 66

Sailing Anarchy · weight 0.80

Sigh. \*I\* built flat panel sails. Do you have a junk rig? If so, did you build it yourself including sewing the sails? Lots of arguments around flat vs cambered panel sails and I don't plan on buying into it here. All I'll say is, if you don't have one, have...

Sailing Anarchy post #1313 page 66

Sailing Anarchy · weight 0.80

They have 3 junk sails. That's a lotta running rigging that they haven't set up yet. Do they have pin rails? I have a total of 16 belaying pins & use most of them. I have 2 junk sails and a jib. My 380 sq ft mail was bigger than I wanted to handle down here so...

Sailing Anarchy post #1316 page 66

Sailing Anarchy · weight 0.80

I know nothing about junk sails but your comments are making me think that Doug managing 2,200 square feet of junk sails without any experience rigging or sailing them is something we can all look forward to. Ha ha. That should go well. I can't see how in hell...

Sailing Anarchy post #13234 page 662

Sailing Anarchy · weight 0.80

...e made from Top Gun synthetic canvas, so most likely not. It's excellent material for junk sails. I have Top Gun sails, no sail covers, and they're still in perfect shape after 7 years. FKT Over time Doug's sails are gonna fade more, get more frayed edges, mor...

Sailing Anarchy post #13856 page 693

Sailing Anarchy · weight 0.80

...a steel lamp post...that would make me think that if he used the same section for the main mast it might not survive a big blow or a big gybe. Looks like they were sailing by the lee.

Sailing Anarchy post #13857 page 693

Sailing Anarchy · weight 0.80

...d like to see how all the bracing and weld look around the base of that mast now. The main mast he built not using a lamp post. I don't know if that means its stronger or weaker though. That mast sure moved around a lot for a steel lamp post...that would make...

Sailing Anarchy post #13858 page 693

Sailing Anarchy · weight 0.80

At the time I did point out the huge inspection hole in his main mast was a weak point as well.

Sailing Anarchy post #13859 page 693

Sailing Anarchy · weight 0.80

...a steel lamp post...that would make me think that if he used the same section for the main mast it might not survive a big blow or a big gybe.

126 additional references are indexed for search.