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Old 10-22-2016, 08:19 AM   #21
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With the right rigging and planning it's a one person job - I do it regularly alone on my 46' GB Classic.
For a first timer best bet is to have some extra hands available and plenty of time!
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Old 12-05-2019, 09:41 AM   #22
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Mast

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Originally Posted by psneeld View Post
That is why I originally asked if it laid forward or aft...mine goes forward so nothing to rig....

But if weight is a concern, some pole like the boom makes the action much easier.
Does anyone know what size are the nuts that hold the mast up she folds foward 1972 36 GB thanks
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Old 12-06-2019, 05:54 AM   #23
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Plan B could be to get a flag pole base as used in Skool yards .


They are aluminum with a geared 1/4 of a circle ring that can simply be cranked up and down.
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Old 09-13-2022, 06:33 PM   #24
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Wondering if anyone has a still better approach to lowering their mast?
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Old 09-14-2022, 05:35 AM   #25
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Wondering if anyone has a still better approach to lowering their mast?
There are a lot of variables depending on how your mast is set up.

It then depends on which way you want it to lower, I chose forward but it did make the flybridge almost unusable while down unless I stripped the rigging.
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Old 09-14-2022, 09:00 AM   #26
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Wondering if anyone has a still better approach to lowering their mast?
Better than what?
We lower it once a year. A person on each upper shroud. They lower the mast down to me as I am standing on the aft cabin. I lower the mast into the crutch. If lowering the mast more frequently I would rig a block and tackle. One end connected over the mast spreaders and the other running forward to a connection point at center of flybridge helm station. Would then be an easy 1 or 2 person job.
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Old 09-14-2022, 02:23 PM   #27
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Exactly. My wife and I could lower ours in about 3 minutes to either “half mast” or all the way.
Then I’d take a few minutes securing things while she continued running the boat.
We would raise it during spring commissioning usually in LI sound after we cleared the RR bridge and raise it for storage on our way back up the CT river.
Then probably 2 times during the summer to half mast when we anchored in Sag Harbor cove.
We also ran the NY canals at half mast for the entire trip.
All my hardware and rigging fit in a small plastic bin under the helm seat. I think I had about $30 invested in rigging.
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Old 10-04-2022, 08:29 AM   #28
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Jay did you use a pully up high on a pole/2x4 to get a better angle? Then it seems it would be a one person job.
I was thinking of using the boom set into a wood block. There is already a pully on the aft end of the boom.
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Old 10-04-2022, 08:42 AM   #29
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Similarly, what are thoughts about the attachment point(s) on the fly ridge? For me the current radar unit is older (heavier) and there’s more weight on the mast that others might have.
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Old 10-04-2022, 10:38 AM   #30
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Similarly, what are thoughts about the attachment point(s) on the fly ridge? For me the current radar unit is older (heavier) and there’s more weight on the mast that others might have.
Check your seats to see how they are attached to the deck. If those attachment points are robust enough, a pad eye on the side of the seats will suffice. If you don't like that, a well secured pad eye on the floor should suffice.

Remember, your seats have to stay in place with the weight of people crashing against them when you are in a seaway. That can be a lot of force.
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Old 10-04-2022, 06:47 PM   #31
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The solution for Unicorn V probably will not appeal to some owners as it requires the boom to be sacrificed. The mast must be lowered to access the boat house. However it has served the boat well for 40 years and is easily handled by an 80 year old in 3 minutes, up or down.
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Old 10-04-2022, 06:59 PM   #32
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The solution for Unicorn V probably will not appeal to some owners as it requires the boom to be sacrificed. The mast must be lowered to access the boat house. However it has served the boat well for 40 years and is easily handled by an 80 year old in 3 minutes, up or down.
Doesn't look like the boom had to be sacrificed, just a different boom/mast crutch.
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Old 10-04-2022, 07:12 PM   #33
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No, it had to go as the hydraulic ram fastens to the mast permanently. I have considered revisiting it by reducing the mast height about 18" but probably won't as we've lived with it all these years. Besides, and this may be heresy, but I think the mast just gets in the way. However it is in the garage!
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Old 10-04-2022, 07:22 PM   #34
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No, it had to go as the hydraulic ram fastens to the mast permanently. I have considered revisiting it by reducing the mast height about 18" but probably won't as we've lived with it all these years. Besides, and this may be heresy, but I think the mast just gets in the way. However it is in the garage!
Just saw that the boom gooseneck looked clear and the mast could fold down over it....seen a lot of setups like that.

Guess I would have made the ram detachable for just raising and lowering...but if inside and a daily thing I get it....I just used my boom a lot and considered it essential equipment.
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Old 10-05-2022, 07:59 AM   #35
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I mounted the pad eye as high up on the mast as I could reach. Made up a short line with 2 clips one for the mast the other for the block and tackle.
I’m on the road now in our travel trailer. When I get home next week I’ll look for some pictures
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Old 10-05-2022, 08:37 PM   #36
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I bought a GB42 Classic a few months ago and inherited this mast lowering system. It works well for me and is easy for one person to use.

Lateral stability while lowering the mast is provided by the (approx) 10" width of the hinge plate (apologies - I forgot to take a close up of the plate).

There is a removeable strut which mounts on the mast front and has a wire rope guy which goes to the radar bracket. This strut maintains a decent "lever arm" distance when the mast is in the lower positions.

Regards,
Nick
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