Thread Tools Search this Thread Display Modes
Old 08-05-2019, 02:02 PM   #21
Veteran Member
DCDC's Avatar
City: New Orleans
Country: USA
Vessel Name: Stella
Vessel Model: Seaton 56
Join Date: Sep 2017
Posts: 59
I changed from a 100# Manson plow to a 125# Mantus. After review I concluded that the current generation of Rocna, Mantus, & Manson anchors perform similarly. Would have gone with the less costly Manson but I donít think it would have fit the bow roller.

I picked Mantus because their website has templates, which I printed and made a cardboard mock-up to ensure a fit with our somewhat unusual roller arrangement. They also offered a discount and free shipping so less expensive than a Rocna.
Attached Thumbnails
Click image for larger version

Name:	4439F8B1-EF27-4377-AEEF-7B3271F2DA8C.jpeg
Views:	17
Size:	156.4 KB
ID:	91956   Click image for larger version

Name:	9585B8CD-9576-4573-B49E-22453597158D.jpeg
Views:	19
Size:	160.5 KB
ID:	91957  

DCDC is offline   Reply With Quote
Old 08-12-2019, 01:19 PM   #22
rgano's Avatar
City: Southport, Florida
Country: USA
Vessel Name: FROLIC
Vessel Model: Mainship 30 Pilot II since 2015. Owned wooden 1972 Grand Banks 42 from 1986 to 2015
Join Date: Oct 2007
Posts: 505
Send a message via Skype™ to rgano
With a vessel that size, I assume you will be carrying more than one anchor. Heck, I carry three (a 16-lb claw for stern-to-the beach use, a bower 35-lb shovel anchor from SuperMax, and a big disassembled Fortress in the bilge) on this little boat. So what I am getting around to is that unless it is a financial consideration for "trading in" that Rocna, keep it aboard. I have very successfully anchored our family's two Grand Banks 42s (around 80,000 pounds) rafted together with a 72-lb Rocna in soupy bottom in 30 MPH winds.

Rich Gano
FROLIC (2005 MainShip 30 Pilot II)
Panama City area
rgano is offline   Reply With Quote
Old 08-12-2019, 01:25 PM   #23
Veteran Member
garychurch's Avatar
City: Green Cove Springs
Country: US
Vessel Name: Laa-Dee-Dah
Vessel Model: 64’ Grand Banks Aleutian
Join Date: Feb 2018
Posts: 28
80 pound anchor is a pretty light anchor for a 60,000 boat. Keep it as a second anchor (kedge, lunch, etc.) and get A 120-160 pound Mantus.

What is your chain. A G4/G43 is notia my stronger than a BBB for example. 3/8 inch G43 weighs in at 1.5 pounds per foot. Sounds like your 2,500 Windless is sized for about any reasonable anchor and chain you want to do.
garychurch is offline   Reply With Quote
Old 08-12-2019, 02:42 PM   #24
SailorPat's Avatar
City: Grosse Pointe Park, MI
Country: USA
Vessel Name: Barefeet
Vessel Model: Jeanneau Sun Odyssey 40 DS
Join Date: Jun 2018
Posts: 3
Previously mentioned, but not dwelled upon, is the risk of hooking into something heavy and cumbersome to deal with as you try to retrieve your fouled anchor. Rather than rigging up and diving down 25 or 35 feet, I would much rather winch it up to the surface and deal up with the extra item(s) from my dinghy and/or boat. This approach adds to the hauling power requirement in size of windlass calculations.
SailorPat is offline   Reply With Quote
Old 08-12-2019, 04:07 PM   #25
Senior Member
BrianSmith's Avatar
City: Wherever Smartini is
Country: USA
Vessel Name: Smartini
Vessel Model: 2002 Kristen 52' Flybridge Trawler
Join Date: Mar 2014
Posts: 344
Originally Posted by Group9 View Post
Yes, because you might find yourself as I did, crossing the Gulf of Mexico, wondering why the boat was handling so bad, and discovering the entire chain and anchor had paid out and was swinging beneath the boat. (Thank God it happened in deep water).

It was pretty rough that night, and I really loved my windless that night as I watched as it just reeled all of the chain and anchor in at the push of a button .
And only yesterday, as I was figuring out a way to absolutely, positively secure my anchor to the bow when not in use, I was wonding "Is this really necessary?". Yep, I guess it is!
BrianSmith is offline   Reply With Quote
Old 08-12-2019, 08:35 PM   #26
City: Gig Harbor
Country: USA
Vessel Name: MoonDance
Vessel Model: Bayliner 4788
Join Date: Oct 2012
Posts: 19
Originally Posted by Kawini View Post
One responder suggested a call to Imtra/Muir. That seemed like a good idea. Just called this a.m. and the customer service was excellent.
IMTRA just rebuilt my Cougar. They were great to deal with on the phone and turned the job around very promptly, highly recommend their service (they are based US East Coast so you don't have to send it to Australia!).
AlanT is offline   Reply With Quote
Old 08-13-2019, 09:42 AM   #27
Veteran Member
City: Southampton
Country: Bermuda
Join Date: Jul 2014
Posts: 48
While the question posed is maximum anchor size for the windlass, Inferring the objective is to ensure adequate ground tackle, does it unduly complicate or help to reference this article?
Recb is offline   Reply With Quote
Old 08-13-2019, 05:24 PM   #28
Veteran Member
City: Barnegat Bay
Country: US
Vessel Name: Hey Jude
Vessel Model: KK42-94
Join Date: Aug 2014
Posts: 69
Originally Posted by Recb View Post
While the question posed is maximum anchor size for the windlass, Inferring the objective is to ensure adequate ground tackle, does it unduly complicate or help to reference this article?
I'd say it helps to have that kind and quality of information available in the overall ground tackle system decisions that need to be made. Another very thorough article by Nigel Calder.
I'll never grow up, nope, not me.
... Peter Pan
KapnKarl is offline   Reply With Quote
Old 08-13-2019, 05:36 PM   #29
Veteran Member
City: Santa Fe, NM
Country: USA
Join Date: Aug 2013
Posts: 48
That article has some good information.

At the end, Calder concludes that you should up-size your anchor for gale force winds and 2 sizes larger than suggested for your boat.

I'm already on board for the "bigger is better" approach to ground tackle. My main concern was how much is "too much" for the windlass I'm about to acquire with a new to me boat.

My mind is at ease, however. After speaking with the excellent people at Imtra which manufactured my Muir windlass, I now know that I can go for that 125 pound Mantus - two sizes larger than recommended by the Mantus table.

Kawini is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

All times are GMT -5. The time now is 04:38 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012