Posted by mdurki (vaughan@…>)
Does anyone have a way of inspecting the sheave on an F30 without
pulling the mast?
I assume that if you are pulled up the mast there would be too much
weight on the sheave to tell if it turns freely.
Posted by William A. Cormack (wacormack@…>)
On the other hand if you can get pulled up the mast without undue effort
then you can be pretty sure it is free.
To be sure, when you get to the top, tie on to any convenient strong object
up there and have the halyard slacked. You can then test the sheave.
Bill
William A. Cormack, CPA
Principal and Chief Financial Officer
Whelan Associates LLC
Corporate Real Estate Services
Bourne Counting House at One Merrill’s Wharf
New Bedford, MA 02740
Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828
MailTo:wacormack@…
----- Original Message -----
From: “mdurki” <vaughan@…>
To: <freedomyachts2003@yahoogroups.com>
Sent: Friday, January 30, 2004 8:31 AM
Subject: [freedomyachts2003] Inspecting masthead sheave
\
Does anyone have a way of inspecting the sheave on an F30 without
pulling the mast?I assume that if you are pulled up the mast there would be too much
weight on the sheave to tell if it turns freely.Yahoo! Groups Links
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Posted by Bay Skipper (bayskipper@…>)
I rigged a block and tackle system that allows me to go up the mast single handed.
I suppose if you had heavy enough tackle rigged for a flag halyard block you could go up that way. (I don’t think I would want to do it, but I believe it could be done). 50 feet is a long fall.
I’ve been up the mast on my F-30 a number of times and can report that Freedom carbon fiber masts are not as user friendly to mast climbers who go up high (visualize a pole vaulter with a biggger pole) as stiff aluminum masts. For those who haven’t been up a carbon fiber mast yet, be aware that the mast flex increases significantly as you go higher than the point where the forestay attaches.
Assuming one got to the masthead and tied off, it is hard for me to imagine someone positioning themselves where they get enough leverage to pry out a sheave that is as corroded and frozen into place as mine was.
My Marina has a crane that is used to launch sailboats for day racing. I have seen people use it as a hoist for a bosun’s chair and by heeling the boat over with a halyard gaining access to the masthead.
I have seen pictures illustrating how people in northern areas actually position their boats to go aground at a place where there is a soft sandy or mud bottom and guide the boat to lay on its side in the desired position as the tide recedes. You can work on the masthead using this scenario, if you can reach it a from a bank, ladder, etc. once the boat has settled aground. Note, in this scenario, it is just as essential to assist the boat as it floats off the bottom when the tide comes back in, to prevent it from swamping and to make sure that it rights properly.
In other areas I’ve heard of people changing bulbs and doing masthead work from piers, overhead bridges, etc., without having to go up and/or pull the mast. Sometimes you can locate a dock or deck where you can heel the boat over with a halyard and gain access to the masthead.
If your main is significantly more difficult to raise than it use to be, it is likely the sheave. If you bought the boat used and the main has always been hard to raise, it is also likely the masthead sheave. Everything working properly, the main sail on a F-30 should not be overly difficult to raise. I agree with Bill. It should take undue effort. If you need two men on the wench to hoist someone up the mast – the sheave is not assisting.
Lee
Califia F30#76
“William A. Cormack” <wacormack@…> wrote:
On the other hand if you can get pulled up the mast without undue effortthen you can be pretty sure it is free.To be sure, when you get to the top, tie on to any convenient strong objectup there and have the halyard slacked. You can then test the sheave.Bill_________________________________________________William A. Cormack, CPAPrincipal and Chief Financial OfficerWhelan Associates LLCCorporate Real Estate ServicesBourne Counting House at One Merrill’s WharfNew Bedford, MA 02740Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828MailTo:wacormack@…----- Original Message ----- From: “mdurki” <vaughan@…>To: <freedomyachts2003@yahoogroups.com>Sent: Friday, January 30, 2004 8:31 AMSubject: [freedomyachts2003] Inspecting masthead sheave> Does anyone
have a way of inspecting the sheave on an F30 without> pulling the mast?>> I assume that if you are pulled up the mast there would be too much> weight on the sheave to tell if it turns freely.>>>>> Yahoo! Groups Links>> To visit your group on the web, go to:> http://groups.yahoo.com/group/freedomyachts2003/>> To unsubscribe from this group, send an email to:> freedomyachts2003-unsubscribe@yahoogroups.com>> Your use of Yahoo! Groups is subject to:> http://docs.yahoo.com/info/terms/>>>>
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