CF Bowsprit - SailNet Community
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post #1 of 16 Old 3 Weeks Ago Thread Starter
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CF Bowsprit

Wanted a sprit for the asym. Liked the selden one. loved the Trogear one. But $1700 not so much. Then I found this fitting on the inter-web which looks like it might be the forward end of the Trogear Sprit.
I purchased 2" CF Tubes on eBay. I'm about to form the attachment ends. I gotta plan for those. Might make one out of solid rod of delrin and use it to make a mold. Bought a yard of CF fabric.....
I purchased the "U" brackets to be attached to the anchor roller. Bought a solid rod of delrin to mill into the bushing for the forward fitting. Trogear uses titanium. If I can finish this for under $400 I'll be happy.
So far with the "U" brackets I'm in about $250.
I bought 3 of the forward fittings.... incase.
I'll post updates.
I had to sand the male ends of the forward fitting to fit the tubes. 'bout .5 mm. CF dust is bad news. I wore full face respirator and all the garb. I looked like Hans solo in Empire Strikes Back.
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1985 C&C 35 MK 3 #150
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Re: CF Bowsprit

Looks cool! I assume you are running that with a bob stay?

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post #3 of 16 Old 2 Weeks Ago Thread Starter
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Re: CF Bowsprit

Yes, with Adjustable bob stay. Following Trogear set up. Low friction eyes...

Just received the black 2' solid Delrin rod. Gunna put them on the lathe tomorrow.

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post #4 of 16 Old 1 Week Ago
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Re: CF Bowsprit

where did you find the fitting?
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Re: CF Bowsprit

What kind of boat is this going on? I would be concerned about the anchor roller not being ready for this kind of loading, even with a bobstay.
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Re: CF Bowsprit

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Originally Posted by eowin View Post
where did you find the fitting?
Fitting is from the manufacturer of the Trogear sprit in china. I bought three. if you want one it was $35 plus $20 for shipping. Or i'll make 2 more complete sprits or sell a kit. The parts are all out there. Mounting options are many. Length is what ever you want. As Paulk mentions, if you use the bow roller make sure it's sturdy enough. My bow roller is sturdy and I'm mounting near the stem. Farther out I would imagine increases loads. Remember the load comes from the halyard or tortion rope of a top down fuller. With the adjustable bob stay working against. The majority of the loads are compression with the bowsprit being pressed aft. I'm obviously no engineer. But I've seen one on TV.

oh, as to the make and model boat. C&C 35-3

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post #7 of 16 Old 1 Week Ago Thread Starter
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Re: CF Bowsprit

The mounting fittings.
The end pieces solid delrin. milled to fit CF tube and cut down. A hole will be drilled to fit mounting brackets.

https://www.facebook.com/photo.php?f...type=3&theater

https://www.facebook.com/photo.php?f...type=3&theater

https://www.facebook.com/photo.php?f...type=3&theater

1985 C&C 35 MK 3 #150
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post #8 of 16 Old 1 Week Ago
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Re: CF Bowsprit

Quote:
Originally Posted by jppp View Post
The mounting fittings.
The end pieces solid delrin. milled to fit CF tube and cut down. A hole will be drilled to fit mounting brackets.

https://www.facebook.com/photo.php?f...type=3&theatere

https://www.facebook.com/photo.php?f...type=3&theater

https://www.facebook.com/photo.php?f...type=3&theater
I Cant open the links to see the photos. Error message says “Content not found. The link you followed may be broken, or the page may have been removed.“

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Re: CF Bowsprit

Quote:
Originally Posted by jppp View Post
Fitting is from the manufacturer of the Trogear sprit in china. I bought three. if you want one it was $35 plus $20 for shipping. Or i'll make 2 more complete sprits or sell a kit. The parts are all out there. Mounting options are many. Length is what ever you want. As Paulk mentions, if you use the bow roller make sure it's sturdy enough. My bow roller is sturdy and I'm mounting near the stem. Farther out I would imagine increases loads. Remember the load comes from the halyard or tortion rope of a top down fuller. With the adjustable bob stay working against. The majority of the loads are compression with the bowsprit being pressed aft. I'm obviously no engineer. But I've seen one on TV.

oh, as to the make and model boat. C&C 35-3

The loads on the bowsprit are in compression when you tighten the halyard and bob stay to furl with a top down furler. the halyard needs to be tight but these loads are small in comparison to the side loads on the sprit when the sail is deployed and is on a close to beam reach. the sail at the tack pulls very hard to leeward and forward on the sprit. the bobstay takes the lifting load the sail puts on the bow of the boat but the sprit has to take the side and forward loads on the sprit. so the sprit has compression load on the leeward side of the sprit and a tension load on the windward side, trying to twist the bow roller off the boat

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The links are pics on the C&C owners group on Facebook. I’ll post the pics directly.
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