Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 16-12-2009, 15:08   #1
Registered User

Join Date: Feb 2008
Location: Vancouver Canada
Boat: Cooper Maple Leaf 42
Posts: 130
Lifting Mast - Advice Please

Lifting mast.
Hi everyone I am getting ready to remove the mast it is approx 55 ft aluminum.
8 to 9 “oval shape, 2 self tailing winches & 4 halyards. I will be lifting from a 70 foot crane hook attached via bowline loop at approx. 40 feet. This is a 5/8”halyard for the Main sail. Held close to mast at 38 foot level just below 2ed spreader bars by a separate 5/8” loop around the mast to prevent mast from falling over. The halyard will continue down to base of mast where it will be secured below the winches.
My question is how heavy is an average mast with all the (8) ¼” ,(2) 5/16 (1) 3/8 forestay SS wire (11) SS turn buckles and (1)roller furling
Is this weight too much for halyard or is this normal procedure. I am out on the hard away from any marina so crane operator will have to rely on me for instructions, as I do not expect he has ever lifted a mast, (Maybe light pools etc)
Any advice appreciated
Sergy is offline   Reply With Quote
Old 16-12-2009, 15:53   #2
Registered User
 
scook1's Avatar

Join Date: Apr 2009
Location: Bourbonnais, Illinois
Boat: McGregor venture 15 "IMP"
Posts: 506
Tough one! There must be some sailor out there who knows. Good luck,
Spencer
__________________
Live in the sunshine, swim the sea, drink the wild air…
-Ralph Waldo Emerson
scook1 is offline   Reply With Quote
Old 16-12-2009, 16:09   #3
Registered User
 
sailvayu's Avatar

Join Date: Mar 2006
Location: Fort Myers FL
Boat: Irwin 40
Posts: 878
Ok I'll take a stab at it. I am guessing your rig is about 1000 lbs. It is about the same size as my mast and I did mine similar to what you are doing. I would use a webbed lifting strap rather than a halyard. I don't trust knots as much for this type of thing. Balance should be good but you will know when you start to pick it up, it should balance pretty well and you should be able to push the bottom down with one hand. Don't be afraid to set it back down to reset. Trust the crane operator but if you have a gut feeling he is wrong follow your gut. Pad the hook on the crane end so it will not mess up the mast as it stands upright. Make sure your lines and rigging are all straight first hard to straighten out in the air. above all be careful and take your time this is not something you want to rush.

Good Luck
__________________
Capt. Wayne Canning, AMS
www.projectboat.info
https://sailvayu.com/
sailvayu is offline   Reply With Quote
Old 16-12-2009, 17:08   #4
Registered User

Join Date: Aug 2008
Location: Ottawa ON
Boat: Pearson 424 Ketch
Posts: 93
I agree that a web strap is normally used under the spreaders. I don't think the weight will be as much as 1000 lbs. Three of us carried my 55 ft mast with the forestay and furler attached off the truck onto the saw horses.

If the mast has been on the boat for a while, I would spray the mast step with PB Blaster a few times a couple of days before you try to remove it. It is fairly common to have masts that have not been removed in a long time to be stuck and the whole boat will sometimes lift before the mast comes loose. Have a sawzall ready just in case it needs to be cut off. However, if the mast has been removed yearly, it should come off pretty easy.

Good luck

Paul
Paul Lefebvre is offline   Reply With Quote
Old 16-12-2009, 18:02   #5
Registered User

Join Date: Mar 2007
Location: Santa Cruz
Boat: SAnta Cruz 27
Posts: 6,887
Mast will be closer to 500 lbs than 1000, but you may need to pull more than 1000 lbs to break it loose from the step. The 5/8 line is fine-- make one bowline loop around the mast above the balance point, and another bowline loop on the tail to hook on the crane, then secure the bottom to the gooseneck, vang or other heavy fitting. I typically lift from the aft side of the mast. I would let the bottom fitting rather than the spreaders take the lifting load. If the mast doesn't pop out, be patient, and have the crane operator wiggle it a bit from side to side. As mentioned, pad the hook, and be prepared to put a pad under the butt of the mast when the crane starts to lay it down.
donradcliffe is offline   Reply With Quote
Old 16-12-2009, 18:28   #6
Registered User
 
FSMike's Avatar

Join Date: Aug 2009
Location: Bahamas/Florida
Boat: Solaris Sunstar 36' catamaran
Posts: 2,686
Images: 5
The hard part is determining the balance point. You definitely do not want it to be drastically top heavy. Attach two lengths of line to the bottom of the mast to be used by you and an assistant to control the mast without having to put your selves next to or under it while moving it away from the boat. Make a note of the ideal lifting spot for future reference. If you are way off, after you get it down move the lifting rope/sling and have the crane operator lift slightly to test the balance so you will know next time.
FSMike is offline   Reply With Quote
Old 17-12-2009, 08:36   #7
Registered User

Join Date: Feb 2008
Location: Vancouver Canada
Boat: Cooper Maple Leaf 42
Posts: 130
Thanks everyone for your valued advice. It is appreciated. I will most likely lift the mast after the Holidays.
Sergy is offline   Reply With Quote
Old 17-12-2009, 10:02   #8
Registered User
 
Stillraining's Avatar

Join Date: Oct 2008
Location: Puget Sound
Boat: Irwin 41 CC Ketch
Posts: 2,878
Around 500 to 600 lbs.

I can tell you how not to do it..
Attached Thumbnails
Click image for larger version

Name:	000_0019-1.jpg
Views:	192
Size:	338.5 KB
ID:	11837   Click image for larger version

Name:	000_0012-4.jpg
Views:	191
Size:	340.9 KB
ID:	11838  

__________________
"Go simple, go large!".

Relationships are everything to me...everything else in life is just a tool to enhance them.
Stillraining is offline   Reply With Quote
Old 17-12-2009, 12:04   #9
Registered User

Join Date: Feb 2008
Location: Vancouver Canada
Boat: Cooper Maple Leaf 42
Posts: 130
Thanks but mine is a deck step so I hope It will not look like this. One thing I am not sure of is should I expect to see quick disconnecters for wires at the bottom of mast when I lift up a foot or two. 5,6. wires below lead into deck support post so I am guessing the disconnect are above???
Sergy is offline   Reply With Quote
Reply

Tags
mast


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lifting an OM636 engine counsellormort Engines and Propulsion Systems 7 16-10-2009 20:02
Lifting One Hull for Maintenance svcattales Multihull Sailboats 13 28-06-2009 15:42
Lifting system for jetski, hobie. freetime Multihull Sailboats 17 22-06-2008 16:04
Need advice - wood rot on my main mast Islandmike Construction, Maintenance & Refit 18 02-06-2008 16:56
location of lifting rings captden Auxiliary Equipment & Dinghy 3 19-01-2007 15:44

Advertise Here


All times are GMT -7. The time now is 07:45.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.