37c stay-sail boom ?

[Morrie]

If anyone has access to your H37c fairly easily, could you give me a measurement for the stay-sail boom - exact feet and inches for just the aluminum tube itself, NOT including the end fittings. Mine came without a boom and I'd like to replace it.

I ask questions about the boom a while back on this forum and got a lot of great pictures sent to me. That allowed me to find a place I can get the end fittings. But the shipping cost to get the boom itself to Hawaii is outrageous. I'm going to try to find a used spar that will work locally.

Thanks in advance to anyone who has the time,
Morrie

 

[Johnb]

Morrie,

According to my records my boom is 117" long, not including the end fittings. I will be at the boat this weekend and double check that.

John Brecher

 

[Ed Schenck]

Boy I would give almost anything to be able to run over to the boat and get those measurements Morrie. But the boat is 1200 miles away and I am now a fulltime caregiver. There are a few guys around that seem to be working on their H37Cs almost every day. One of them will have the numbers. I do know that the foot of the staysail is 9 feet, 6 inches. The tack cringle would be about 3" forward of the "tube" end. The outhaul connects to the clew cringle so it is about 3'' short of the aft end of the tube. So very close to 9' 6" for the tube. But you want the real number. Good luck. (Picture is tack end).

 

[Bill1565]

It's 9+PM and I am old. Boom is in garage. Will meaure, post manana.

 

[Bill1565]

My boom extrusion is right at 10 feet long. Aft end cut away with 2 shivs (outhaul?, reef?) just like a main boom. I am waiting on a local rigger to show up to install stay, then I will install boom, staysail.

 

[Ed Schenck]

Morrie, you do realize I know that the end hardware fits inside the extrusion. In other words the shape and dimensions have to match the end fittings exactly. Are our staysail booms like 3550 or 3756? - http://www.rigrite.com/Spars/Kenyon_Spars/KENYON.html#Boom Sections

 

[Morrie]

Thanks all

Thanks to everyone who sent measurements and advice. I'm not sure what I'm going to do at this point. I just want to try and find something that will work locally.

Ed, nice to hear from you - sorry you're not getting as much boat time as you'd like. Thanks for the picture - that helps too.

Morrie

 

[guidera48]

Stay Boom measurement

Sorry to be so late to the party, but I did take a tape to the boom and mine measures 117 inches long. (actual pipe ) with a 2 1/4 notch at one end with a sloped cut.
Let me know if you need additional pictures. My mast and booms are at my business.

Cheers

Jose Guidera
S/V Bonheur

 

[Johnb]

Boom dimension

My boom extrusion is 116 7/8 " long. By the way, it does not clear the mast by much - just 2" when horizontal.

We had some interesting weather over the weekend - Saturday it was supposed to be clear between rainstorms but that did not happen untill the evening.

John Brecher

 

[Ed Schenck]

John, looks like your sheeting is original. Does it still go to starboard and back? I installed a turning block at the base of the mast. I run it through a deck organizer to the winch and cleat on the port cabin top.

I guess since she is a cutter you can't "Sailed on the sloop John B. My grandfather. .".

 

[Johnb]

Ed,

Yes the sheets go as you described. I have thought of making a change similar to what you describe, it would eliminate a lot of friction. In light air when I let the sheet out it just lays on the deck and the boom does'nt move.

One thing though. I used to get a lot of "pumping" movement from the boom in the vertical direction. That got worse wtih my new sails that are a bit heavier. I solved that by moving the traveller stops outwards and then sheeting in a bit tighter so the sheet put a more vertical force on the end of the boom. How would that be affected by bringing the sheet near the center of the traveller?

 

[Ed Schenck]

Nothing changes John. I do the same thing, our only recourse without the ability to add a vang I think. I don't have any pictures but basically you just turn your blocks upside down. The sheet comes off the bottom block and to the mast block. The over to the deck organizer and back.

I bought and installed double deck organizers on both sides some years ago. But the only line going back is that staysail sheet. Easy to do since the winch and cleat were already there from the old mainsheet days.

 

[Johnb]

Ed,

So whichever tack you are on the sheet would go to center from the lower block. That would result in a force pulling the traveller inwards - does that create any problem?

 

[Ed A]

booms not all the same.

My 1984 37c had roller furling on the staysail.
The staysail boom did not attatch to the stay, but to a 4 or 5 inch dia. 8 or 10 inch post behind the staysail on the deck.

this enabled the furler to work, and it had a bit shorter boom than one without the furling.

Wish i knew where the boat went, New jersey i think.

 

[Ed A]

the staysail sheets ran back to a winch on the cabin house. it was very hard to use because of the sheet being run forward and then back again to the winch. made it all work stiff.

never liked it much.

Ed S i think had a picture of it somewhere not sure if he still has it.

 

[Ed Schenck]

Hey Ed, whatcha' doin' down there? Don't know how I missed John's followup question. With my new setup he is wondering if the force of the sheet pulling from the mast base will affect the staysail trim. Since I only use the staysail in a good breeze I have never had the problem of pulling the slider away from the stop. I guess you could move the other stop over but that requires going forward at every tack. Plus the angle is more back and not in line with the traveler so I don't think the block is going to be pulled away from the stop. Confusing eh?