What should i make a dinghy mast out of?

Jun 5, 2014
209
Capital Yacths Newport MKIII 30 Punta Gorda, Fl
I have a Dinghy I have converted to a Sailing Dinghy. A friend gave me a nice sail, boom, and a kick up rudder. I made Lee Boards for both sides of the dinghy. I had made a mast out of an old pool cleaning pole I had laying around. It looked good but broke on the first sail upwind.

Question: What would yall recommend I make an inexpensive mast out of for my dinghy. It needs to be 12' long. My support hole is currently for a 1" diameter mast but can be changed. Would a 12' piece of 2x4 cut and shaped to fit in the support hole be strong enough?

Thanks Mike
 
  • Like
Likes: jason357

MitchM

.
Jan 20, 2005
1,031
Nauticat 321 pilothouse 32 Erie PA
contact john at chesapeake light crafts in annapolis MD. they have wooden masts on all their sailing dinghys and maybe one of their designs would work for you. their masts are square-bottom so you might have to add a wooden square casing to your desk to fit their mast design. i have 2 of th CLC boats, Skerry' 16 ft row and sail, and eastport pram. each came fitted with the square masts and they are fine performers up to about 18 knots (after which you really don't want to be out in an 8 foot boat ) the masts can come UPS.
 
Feb 8, 2014
1,300
Columbia 36 Muskegon
Sunfish, Sailfish, and the like use a simple aluminum tube. Most metal suppliers have the material in stock and can recommend an appropriate wall thickness. A thicker wall would be much stronger than the pole you used.

A solid piece of wood like a 2x4 would be too heavy, and a hollow Sitka spruce mast would be crazy expensive.
 
Mar 1, 2012
2,182
1961 Rhodes Meridian 25 Texas coast
Totally off the subject, but do you know my friend Tom Scott, who lives in Punta Gorda? Sails a Morgan 30 named Whimsey"
 
Jun 5, 2014
209
Capital Yacths Newport MKIII 30 Punta Gorda, Fl
Totally off the subject, but do you know my friend Tom Scott, who lives in Punta Gorda? Sails a Morgan 30 named Whimsey"
I do know a Tom in our sailing club, but not sure of his last name or boat name. Not sure. I;ll have to ask at the next meeting. We have over 200 members.
 
Oct 17, 2011
2,809
Ericson 29 Southport..
One inch? Hmm, if it were me, I would have to try a piece of top rail for a chain link fence. I would think it would be more stout than a pool cleaning pole. Just a thought..
 

kito

.
Sep 13, 2012
2,011
1979 Hunter Cherubini 30 Clemmons
This post brings up some memories. I built a wood version of a Sunfish back when I was in high school. I made it a cat rig instead of the standard Sunfish setup. Not having much money I made my spars from schedule 80 pvc pipe! Needless to say , it failed miserably...Haha! We ended up swimming to shore. My brother was kind enough to buy me a used mast for graduation. Sailed great then....even with a pvc boom lol
 
Nov 9, 2008
1,338
Pearson-O'Day 290 Portland Maine
1 1/4 inch schedule 40 alum pipe. About 1.66 inch diameter with a wall thickness of around 5/32. If you want, slide a length of 1 inch into the first 4 feet.
 
  • Like
Likes: McIntoshUSA
Jan 27, 2008
3,092
ODay 35 Beaufort, NC
I made a mast like you need for a sailing dinghy I built. Here's how to make it strong. Rip three pine 1" boards with no knots in them to 2.25 inch width. A 1" board is 3/4 thick so three of them will be 2.25 thick. Now mix some epoxy with microfibers and bond the three boards together using bar clamps or c-clamps all along the length to make a good bond. Alternate the grains in the wood for maximum strength. You should end up with a 2.25 square beam.. Now mark each side of the beam into thirds, so there should be two lines along the length of the beam at 3/4 inches from each corner. Now take a block plane and plane each corner until you hit the lines. You will now have an eight sided beam. Now plane each of the eight corners until you have a 16 sided beam. At this point it will look almost round. You can hit each corner again with the plane or what I did was use a belt sanding belt like shining your shoes, and sand along the length to make it round. You now have a strong wooden mast that is 2.25 in diameter. This sounds like a lot of wrk but it is incredibly easy, The time for planing is minimal and it becomes round very fast. You can leave it square at the bottom if that is what you want by stopping the planing at a certain length. Now get a sheave and a stainless rod to fit the sheave, drill two holes and use a jig saw to cut a slot near the top of the mast to fit the sheave. Drill a hole for the pin and install the sheave and pin and bond the pin in with wood plugs. Now you have a sheave at the top of the mast for the halyard. I have a lugsail rig but you could add a track to the mast, or use rings on the sail for a Marconi rig etc. A sprit rig is popular for a small boat also. Coat the outside of the mast with epoxy to seal it and then varnish or cetol or whatever for UV protection. My mast is 15 years old and still working.
 
  • Like
Likes: McIntoshUSA
Oct 10, 2015
4
AMF/Alcort Minifish Lake Belton
The top rail of a fence is just a bad idea. That's not meant to be a load bearing pole and would be questionable for a 3X5 ft flag.

Limiting yourself to such a small diameter is a serious mistake.
The boom on a Minifish is bigger and that is a SMALL sail.
Try the mast from a sailboard and limit yourself to the sail area of that sailboard maybe...
 
  • Like
Likes: McIntoshUSA
Sep 15, 2009
6,244
S2 9.2a Fairhope Al
the main part or body of the mast doesn't need to be 1 inch only the part that fits in the hole...make it larger say 2 inches and then make a 1 inch tenon where it goes into the hole

oh and use ash for the material
 
  • Like
Likes: McIntoshUSA
Oct 24, 2010
2,405
Hunter 30 Everett, WA
I made a mast like you need for a sailing dinghy I built. Here's how to make it strong. Rip three pine 1" boards with no knots in them to 2.25 inch width. A 1" board is 3/4 thick so three of them will be 2.25 thick. Now mix some epoxy with microfibers and bond the three boards together using bar clamps or c-clamps all along the length to make a good bond. Alternate the grains in the wood for maximum strength. You should end up with a 2.25 square beam.. Now mark each side of the beam into thirds, so there should be two lines along the length of the beam at 3/4 inches from each corner. Now take a block plane and plane each corner until you hit the lines. You will now have an eight sided beam. Now plane each of the eight corners until you have a 16 sided beam. At this point it will look almost round. You can hit each corner again with the plane or what I did was use a belt sanding belt like shining your shoes, and sand along the length to make it round. You now have a strong wooden mast that is 2.25 in diameter. This sounds like a lot of wrk but it is incredibly easy, The time for planing is minimal and it becomes round very fast. You can leave it square at the bottom if that is what you want by stopping the planing at a certain length. Now get a sheave and a stainless rod to fit the sheave, drill two holes and use a jig saw to cut a slot near the top of the mast to fit the sheave. Drill a hole for the pin and install the sheave and pin and bond the pin in with wood plugs. Now you have a sheave at the top of the mast for the halyard. I have a lugsail rig but you could add a track to the mast, or use rings on the sail for a Marconi rig etc. A sprit rig is popular for a small boat also. Coat the outside of the mast with epoxy to seal it and then varnish or cetol or whatever for UV protection. My mast is 15 years old and still working.
I second the wooden mast project. Then drill insert a metal 1 inch pin in epoxy inside the bottom for the mounting. If the mast is to be unsupported you may need to use stronger wood such as spruce. Wooden masts can also be made hollow and or tapered depending on how much labor you want to invest. You should be able to find some examples online. A few years ago someone posted a how to on www.trailersailors.com
Ken
 
  • Like
Likes: McIntoshUSA

DougM

.
Jul 24, 2005
2,242
Beneteau 323 Manistee, MI
Find an old windsurfer mast. They are tapered Fiberglas tubes make a plug to fit the inside diameter of the tube, then cut the square shape you need for the step out of a scrap piece of hardwood, like maybe an old baseball bat.
 
Nov 6, 2015
4
Catalina Capri 14.2 Lake Tillery
Sounds a lot like the procedure Norm Abram used on New Yankee Workshop when making a wooden flag pole