Fitting a jib boom

[pcatterall]

My Neptunian Ketch 'came' with a jib boom which I would like to trial. These were often discarde by owners who fitted furling gennys. The last owner fitted a bowsprit and new forstay with furling genny but retained the inner stay. We fitted the 'inner jib' to the jib boom yesterday and it seemed to work fine. We were not sure how the tack end of the jib boom was meant to fit though, we just clipped it around the stay and the short wire strop attached to the deck. Is there a 'proper way' to attach the boom?
We noted that the jib had reefing points. If we were using this jib conventionally ( without the boom is there any reason why we could not use this reefed as a sort of storm sail?)
Thanks guys.

 

[vyv_cox]

We noted that the jib had reefing points. If we were using this jib conventionally ( without the boom is there any reason why we could not use this reefed as a sort of storm sail?)
Thanks guys.

This used to be quite common, I guess much less so with roller reefing now being almost mandatory. I have owned two boats that had reefing jibs, sounds useful but in practice quite difficult to use on the water. I seem to remember that a recent PBO said something about them. Probably easier on your more stable platform but on my narrow, low buoyancy boats it was a wet job.

 

[VicS]

Many years ago I sailed with a friend who had modified his Golden Hind to cutter rig.

Never quite sure quite sure of the correct names for head sails but he put the original jib on to a boom to make it self tacking. The boom pivoted from raised fitting on the foredeck. Only the clew of the sail was attached to the boom, obviously.

Sorry so long ago that's about all I remember, apart from a brilliant home-made self steering gear.

 

[pcatterall]

The jib is fitted along the boom with the normal bolt rope. It was very convienient when we tested it (tacking from side to side in the harbour!) but then the wind died!!
We filled in the time trying to set up the autopilot with no success at all !! only when we re-read the instructions did we find that the guy who installed it had wired the motor the wrong way!!
We had thought to use the boom jib with the furling genoa, we expect the genoa to hard to tack with as the new forstay is very close to the inner stay, we expect to have to wind it almost right in to tack.

 

[William_H]

Jib boom

A jib on a boom is a great arrangement for an inner jib because it can be made self tacking. Further the jib can be made to hold a better shape especially off the wind. The jib works very much like a mainsail on a boom.
You can have a sheet that runs from the middle of the deck to the boom just like a main.
However just like a main you have the problem of pulling the boom down when you ease the sheet. If you don't pull the boom down when you ease the sheet the leach loses tension and the top of the jib falls away losing drive.
You can have a boom vang but mostly the boom has a gooseneck close to the deck and there simply is not room enough between the boom and the deck.
I have wondered whether anyone has used a spar or hydraulic ram from forestay down to the boom to hold it down. Like a pushing vang.
One other way to solve this problem is to have a broad traveler track across the foredeck for the sheet to run on. This needs then traveler control lines and of course must run freely enough for the self tacking.

Anyway this is only speculating. good luck with your experiments olewill

 

[Gordonmc]

Farewell is a cutter ketch with a self-tacking jib, or staysail. The jib boom attaches to the inner forestay with the gooseneck equivalent bolting onto a tube which is free to move up and down the stay.
The only way I could get it right was to set the sail on the boom (slugs with clew outhaul) and raise the head as far as it would go, then use a strop from the deck to the bottom of the gooseneck gizmo to tension the luff.
Experience may show I need to adjust the arrangement.
BTW, the jib has two reefs and a substantial downhaul, sugesting it may have been used as a storm sail.

 

[RAI]

Many years ago I sailed with a friend who had modified his Golden Hind to cutter rig.

Never quite sure quite sure of the correct names for head sails but he put the original jib on to a boom to make it self tacking. The boom pivoted from raised fitting on the foredeck. Only the clew of the sail was attached to the boom, obviously.

Sorry so long ago that's about all I remember, apart from a brilliant home-made self steering gear.

Maybe a Hoyt boom. I fitted one. It can be used with a furling gear.

http://www.garryhoyt.com/id38.html