Hi Doug,

As Tom mentioned I installed an older CDI FF2 on our M17 this past summer and 
will try and answer your questions. My wife and I owned a M15 for many years so 
I'm familiar with the 15's rigging setup.

> Does the turnbuckle have to be adjusted every time you trailer?

No, the turnbuckle does not need to be adjusted every time you trailer. In 
fact, it would be difficult to do as the furler drum covers the turnbuckle. To 
create the proper forestay tension, on the 17 I use a backstay tensioner to 
tighten the forestay. I slack the tension on the backstay, which eases the 
tension on the forestay, allowing me to pin the toggle which protrudes from the 
FF2's drum to the deck plate.  On the 15, you would need some mechanical 
advantage to slack the forestay in order to pin the drum to the deck. On our 15 
we used our jib halyard to put forward tension on the mast and put some slack 
in the forestay; made it much easier to attach and un-attaching the forestay, I 
think could work just as well with a furler.

> Does the forestay have to come off every time you trailer?

No, I don't remove the forestay when trailering. I think it would be a big 
hassle to remove the furler when trailering. With the CDI FF2 there is a 2" 
wide plastic luff extrusion that slides over the forestay for 95% of the 
forestay length. The furler drum attaches to the bottom of plastic luff, and is 
held in place by the forestay turnbuckle, at the base of the forestay. When 
trailering the head sail is furled around the luff extrusion which makes for a 
semi-rigid forestay bundle (head sail wrapped around plastic extrusion which 
encloses the forestay). This semi-rigid bundle will lay on top the mast while 
trailering without removing it. If you did remove it, it would be awkward to 
store (think of trying to store a 20ft long piece of 2" PVC pipe).

The sail/luff bundle is longer than the mast on the 17, and extends beyond the 
end of the mast by apx. 18". With the 15 being fractional rigged you could 
disconnect the upper end of the forestay and slide the forestay/sail/luff 
bundle up the mast so it doesn't extend beyond the end of the mast for 
trailering.  There is a downloadable .pdf file from the CDI web site. The .pdf 
file does a pretty good job of showing how thing work and fit together.

> If not what do you do with drum end?

The drum stays attached, just hangs over the end of the mast on our 17 while 
trailering.
Since adding the FF2 and 150 furling Genoa to our 17 this past summer, I'm 
personally convinced that a furler is one of our best addition to our 17. It 
does make the mast heavier when raising, as you raise not only the mast but the 
furler and sail also. And, you need to add a toggle to the top of your forestay 
to allow the forestay to flex without putting stress on a compression fitting. 
The CDI FF2 does require a turnbuckle at the drum end of the forestay. The 
turnbuckle is integral to how the FF2 fits together.

I shopped many furling units before settling on the CDI FF2. I think the CDI 
offers some advantages over other comparable units, it also happens to be the 
least expensive. CDI offers a ball bearing upgrade, but the used FF2 I purchase 
had the nylon bushing. Had I bought new I would have probably opted for the 
ball bearing upgrade ($60). But since using the nylon bushing I find it fully 
adequate and see no need for the upgrade.

Best Wishes to Everyone for a Great 2008,
Sincerely,
Randy Graves
M17 #410
________________________________________
From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Tom Smith [EMAIL 
PROTECTED]
Sent: Monday, December 31, 2007 9:17 AM
To: For and about Montgomery Sailboats
Subject: Re: M_Boats: CDI furler experience

Although they all sail M17s, Randy, Larry and Gary all use roller
furling and trail their boats.  I'm sure one of them can address your
question Doug.  I don't believe there's a turnbuckle used in at least
Larry and Randy setups, but I'm just guessing.

Having owned and sailed an M15 for some years, I hear what you're
getting at.  I left Chukar's rig fairly loose too, but I think an M15
with furling would require more rig tension.  I believe there are
quick-release turnbuckles available (from Johnson maybe?) that could
be used with the sidestays that would solve the problem.  t

On Dec 31, 2007 8:56 AM, Doug Kelch <[EMAIL PROTECTED]> wrote:
> Can anyone share the process for using the CDI furler on a trailerable boat?
>
> The CDI furler seems to require a turnbuckle as part of the forestay.  I have 
> an M15 with the "floppy" rig and no turnbuckle.  Does the turnbuckle have to 
> be adjusted every time you trailer?
>
> Does the forestay have to come off every time you trailer?
>
> If not what do you do with drum end?
>
> Thanks
>
> Doug Kelch
> M15 #310
> "Seas the Day"
>
>
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--


Tom & Jane
M17 dharma bum

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