V-Boom

jviss

.
Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
My boat's spar and boom were made by Offshore Spars. They do some pretty impressive work. I was thrilled when I found that my friend's custom Morris 39' coastal cruiser had the same, exact boom as mine. But then, he has a carbon fiber mast, but that's another story....

Perusing their website, I came upon the V-Boom. It's awesome! This carbon fiber boom has some incredibly useful and cool features. First, per the name, it's a "V" that catches the mainsail. Nice. There are lazy jaack attachment points with a groove, inside them, for the sail cover; I assume the sail cover has luff tape on its edges, so it just slides on from the aft end. Very cool. Then, there's another set of grooves, outside the lazy jack attachment points, to accept awnings. Finally, there are lights built in to the boom to illuminate your evening gatherings under the awnings. Super cool!




I haven't asked for a quote yet, and I'm sure it will be more than I can afford. But I was thinking....

Do you think you could fabricate one of these in aluminum? Start with an extrusion, which is then cut and bent and welded to taper it outboard, and similarly inboard, for the gooseneck fitting. You'd have to be making several for the price of the extruding tool, and extrusion run to make sense. You could address the Beneteau and Catalina market....

http://www.offshorespars.com/booms/v-boom/
 
Jan 7, 2011
5,430
Oday 322 East Chicago, IN
Can use that with a loose footed main? It seems that the sail would rub on the sides of the boom.

But as you say, it has som really neat features.

Greg
 

jviss

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Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
I think it's intended for a loose footed main. I don't see a problem with the sail rubbing; I'm sure they considered this in the design.
 
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jviss

.
Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
Well, I got a quote. It says "confidential quote" on it, but let's just say it's about what a new, reasonably well equipped Ford F150 would be.
 
Jan 7, 2011
5,430
Oday 322 East Chicago, IN
Well, I got a quote. It says "confidential quote" on it, but let's just say it's about what a new, reasonably well equipped Ford F150 would be.
More than my boat is worth!

Guess I will stick with my old Z-Spar.

Greg
 

jviss

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Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
More than my boat is worth!

Guess I will stick with my old Z-Spar.

Greg
Indeed! I kinda feel like the time I walked into a Rolls Royce dealership and the salesmen treated me seriously.

My boom works great, though! I like the single line reefing. There's a mystery line and hardware missing, maybe it's the preventer? Or maybe a topping lift.
 
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Sep 24, 2018
3,256
Catalina 30 MKIII Chicago
Indeed! I kinda feel like the time I walked into a Rolls Royce dealership and the salesmen treated me seriously.
There used to be a Cadillac and Rolls Royce dealership at the same location. When I was young I loved driving my rust bucket of a cargo van over there (to get GM parts) just to see the looks of disgust on the staff's faces :biggrin:

I'm wondering if some properly bent and cut aluminum sheets could achieve the same thing as this boom. I'm thinking it could be attached with screws or rivets to avoid welding
 

jviss

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Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
I'm wondering if some properly bent and cut aluminum sheets could achieve the same thing as this boom. I'm thinking it could be attached with screws or rivets to avoid welding
Were I to make one, I'd hope to be able make several for sale, to amortize the cost of a tool to make an extrusion, to start; then cut, bend, weld....
 
Nov 8, 2010
11,386
Beneteau First 36.7 & 260 Minneapolis MN & Bayfield WI
They used to call them Park Avenue booms here in the US. In France they call them Canoe booms, the rest of Europe, 'Y' booms. They are in Selden's catalog.

http://www.seldenmast.com/en/products/Booms/y-booms.html

Not sure you could make one out of aluminum. Booms use the closed box or tube for three dimensional structure and strength.

You could however add full 'wings' to a traditional tube boom. Some boats do this now; not full wings but sail catchers. I'll find a pic.
 
Nov 8, 2010
11,386
Beneteau First 36.7 & 260 Minneapolis MN & Bayfield WI
OK like this Pogo 50. Note the 'V' sail catchers on each side of the boom, I think three sets. The lazy-jack lines attach to them, giving a wide base for the sail to land when dropped. This is very important for very large mainsails, in particular square-tops.

 
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jviss

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Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
They used to call them Park Avenue booms here in the US.
Offshore Spars still does, they have a Park Avenue boom in the catalog.

The Park Avenue boom was introduced in the 1930's on the J-class yachts. I was fortunate to sail on Shamrock V in Boston and New York harbors in about 1998 - we chartered it for a product introduction. In NY harbor a rip appeared along the foot of the main, and a crewmember climbed up, walked down the boom to the rip, sat down, and stitched it!

Those booms were wood. I'm sure you could make an adequately strong one of aluminum. Sure, it would be heavier than carbon fiber, but could be as strong - just maybe not as stiff.
 
Jan 22, 2008
8,050
Beneteau 323 Annapolis MD
I'm thinking "back in the day", the booms of that ilk were designed to catch rain water off the sails and into a water cask. Like a downspout on a house, into a rain barrel.
 
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jviss

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Feb 5, 2004
7,089
Tartan 3800 20 Westport, MA
I'm thinking "back in the day", the booms of that ilk were designed to catch rain water off the sails and into a water cask. Like a downspout on a house, into a rain barrel.
These kind of booms were only first produced for J-class Americas Cup racers, i.e., millionaire's 120' racing machines. Most didn't even have finished interiors until after their racing days were over.