[Rhodes22-list] Genoa too long for my GBI furling tube

Tue Sep 21 21:39:23 EDT 2004

Bob,

If you can find the appropriate sized tubing, Todd's suggestion is a good
one.  Having the internal "splice" will help hold the entire assembly in
alignment during welding.  A certified welder would be able to butt weld the
two pieces together in the manner I originally suggested & it would be
acceptably strong.  However, any yayhoo should be able to weld the two
pieces together using Todd's suggestion.  Since, you may not be able to find
a certified welder, Todd's suggestion is cheap insurance.

Good luck!

Roger Pihlaja
S/V Dynamic Equilibrium

----- Original Message -----
From: "Todd Tavares" <sprocket80 at mail.com>
To: "The Rhodes 22 mail list" <rhodes22-list at rhodes22.org>
Sent: Tuesday, September 21, 2004 6:58 PM
Subject: Re: [Rhodes22-list] Genoa too long for my GBI furling tube

>
>    Bob,
>
>        I'd like to add one additional suggestion to Roger's post.   Try
>    to find a piece of aluminum tubing that will fit tightly inside the
>    furling tube.  Cut a length of this tube approximately four inches
>    long.  This section should be slid inside the furling tube and extend
>    at least two inches into each of the furling tube and the add on
>    section.  Have the welder put a couple of "rosette" welds on either
>    side of the joint to be welded.  Roger may think this is overkill
>    but,  better to be safe than sorry.
>
>    Todd
>
>    ----- Original Message -----
>    From: "Roger Pihlaja"
>    Date: Mon, 20 Sep 2004 22:03:17 -0400
>    To: "The Rhodes 22 mail list"
>    Subject: Re: [Rhodes22-list] Genoa too long for my GBI furling tube
>    > Mark,
>    >
>    > OK, thank-you, now I understand! I will have to look at doing
>    something
>    > like this with my Harken Unit 0 roller furler. If I could avoid
>    having to
>    > connect & disconnect the forestay from the masthead when I trailer
>    Dynamic
>    > Equilibrium, it would significantly speed up my rigging/unrigging
>    process.
>    >
>    > So Bob, if you are still listening to all of this; go to the
>    hardware store
>    > & buy a piece of aluminum tubing with the same OD as your furling
>    tube. Cut
>    > this tube to the additional length required on your forestay. Take
>    your
>    > present furling tube to a welding shop that specializes in MIG
>    welding of
>    > aluminum &a mp; have them weld the additional tubing onto the end of
>    your present
>    > furling tube. Tell the welder that the joint is going to be subject
>    to a
>    > combination of tension, compression, & torsional loading & that you
>    need
>    > 100% weld penetration. Be sure to have them grind the weld joint
>    smooth.
>    > This will provide the additional luff length you want for your
>    oversize
>    > genoa.
>    >
>    > But now, if you don't disconnect the forestay from the masthead, the
>    furling
>    > drum will stick out about 2 feet beyond the butt end of the mast
>    when you
>    > trailer the boat. The furling drum will be supported only by the
>    furling
>    > tube as a cantilever load. The furling tube wasn't designed to be
>    loaded in
>    > that manner. The furling tube isn't sufficiently strong to tolerate
>    this
>    > sort of load for very long. If you don't support the furling drum;
>    then,
>    > you may bend your furling tube as you drive down t he road due to
>    aerodynamic
>    > loading & vibration. I would expect the furling tube will crack &
>    fail in a
>    > short cycle fatigue mode if you don't support the furling drum. So,
>    for
>    > trailering, go back to the hardware store & buy yourself a piece of
>    PVC pipe
>    > or a piece of wood that fits tightly into the butt end of your mast.
>    You
>    > will have to rig up a way to secure your furling drum to this PVC
>    pipe or
>    > piece of wood when it is sticking out of the butt end of the mast -
>    > something as simple as a bungee cord would probably work just fine.
>    >
>    > Roger Pihlaja
>    > S/V Dynamic Equilibrium
>    >
>    > ----- Original Message -----
>    > From: "Mark Kaynor"
>    > To: "'The Rhodes 22 mail list'"
>    > Sent: Monday, September 20, 2004 8:00 PM
>    > Subject: RE: [Rhodes22-list] Genoa too long for my GBI furling tube
>    >
>    >
>    > ; > Roger,
>    > >
>    > > As an owner of the CDI furler, I think Rummy is saying that the
>    CDI furler
>    > > foil is cut to be just short of the upper end of the forestay.
>    When you
>    > > lower the mast, the furler sticks out a couple of feet beyond the
>    base of
>    > > the mast. The solution for transporting it is to stick a piece of
>    wood, a
>    > > piece of PVC, etc. up into the mast such that an amount
>    approximately
>    > equal
>    > > to the "extra" length of the CDI furler to support the furling
>    drum. The
>    > > excess foil / drum is then tied to the support.
>    > >
>    > > Mark Kaynor
>    > >
>    > > -----Original Message-----
>    > > From: rhodes22-list-bounces at rhodes22.org
>    > > [mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of Roger
>    Pihlaja
>    > > Sent: Monday, September 20, 2004 7:50 PM
>    > > To: The Rhodes 22 mail list
>    > > Subject: Re: [Rh odes22-list] Genoa too long for my GBI furling
>    tube
>    > >
>    > > Rummy,
>    > >
>    > > I'm not following your explanation; but, it doesn't matter. The
>    real
>    > > question is; In your opinion, is this a viable solution for Bob?
>    > >
>    > > Roger
>    > >
>    > > ----- Original Message -----
>    > > From:
>    > > To:
>    > > Sent: Monday, September 20, 2004 5:02 PM
>    > > Subject: Re: [Rhodes22-list] Genoa too long for my GBI furling
>    tube
>    > >
>    > >
>    > > > Roger,
>    > > > The new CDI furling drum that is coming from the factory is
>    longer in
>    > > > the manner you described. They dealt with the extra length by
>    using a
>    > > > piece of
>    > > PVC
>    > > > inserted into the mast and then tie the extra length to it. This
>    way
>    > > > the entire length can be supported for transit.
>    > > >
>    > > > Rummy
>    > > > __________________________________________________
>    > > > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
>    > > >
>    > > >
>    > >
>    > >
>    > > __________________________________________________
>    > > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
>    > >
>    > >
>    > > __________________________________________________
>    > > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
>    > >
>    > >
>    >
>    >
>    > __________________________________________________
>    > Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
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>
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