FWT
Guru
- Joined
- Dec 10, 2020
- Messages
- 1,600
- Vessel Name
- Resilient
- Vessel Make
- Helmsman Trawlers 38E
btw, i grew up boating on the long island sound and we didn't need anchors, because we were always running aground
btw, i grew up boating on the long island sound and we didn't need anchors, because we were always running aground
Hi Mako,
3-1 scope is fine and despite what you read more or less the norm in the PNW.
But Rocna isn’t the best short scope anchor. They are awesome at long scope but the Manson Supreme bests them for short (normal) scope IMO and in a big comprehensive anchor test. But see them perform here in TF on Steve’s anchor vids.
Then, I thought....well that wouldn't be available then as an emergency anchor rode....so the question....
how long would a line last stowed at the bottom of the chain locker if never or rarely used...and is it worth that sacrifice vs stowing the rode out of the locker just in case?
It'll last a while, but it will hold dirt and moisture. If you could build a little shelf off to the side you could put the line there (will depend on locker shape) and let the chain sit separately. Just have to stop retrieving, move the line and continue any time you use it.
Does Helmsman really deliver boats in the PWN with only 200' of chain? I find that hard to believe, so would quiz them some more on the limit. Perhaps you can find some Helmsman owners (like dhays) operating with more than 200' who can comment on performance and handling? Assuming 3/8" chain, adding 100' is 150 lbs. I find it really hard to believe that will be noticeable in any way on a 40,000 - 50,000 lb boat.
If in the end you are convinced that 200' is the limit, then just proceed with that constraint. We cruised from the Gaspe peninsula to the Bahamas with 200' of chain. You just adapt, and it's no big deal. If it were the PNW, I'd have a problem with 200' of chain.
What size chain does the 38E come with? Depending on that and the windlass in question, you might be able to swap the gypsy and downsize the chain a size (and go up a strength grade) to save some weight and then add more length. 5/16" is just over 2/3 the weight per foot of 3/8, for example. So dropping a size and adding 100 feet might work out about the same in total weight and locker space.
TwistedTree:
After that long-winded answer it occurs to me the answer is more simple.
A difference in perspective.
You have a gigantic Nordhavn. (Yeah, green with envy!) 400 ft of chain on a boat like that is probably nothing. We little people have to contend with the limitations of boat smaller than yours.
we cruised a similar size boats all over the east coast with 200' and never felt it wasn't enough.
The builder knows the boat better than any of us. I'm taking their advice.
A short tether secures the boat end and can be cut easilyIf you go with all chain, how do you cut the chain in the event of an emergency where you need to get rid of the anchor?
A short tether secures the boat end and can be cut easily
I may be in a minority here, but prefer a nylon/chain rode. Why carry extra weight that you don't need to and may rarely or never use? Also, why deal with bridles if you don't have to? One rule of thumb is to use about a boat's length of chain and the rest nylon (strongly suggest 8-plait).....
You don't/can't cut the chain. On most boats the bitter end of the chain is tied (signal cord sized rope) to something in the chain locker. You must let out almost all the chain and then cut the securing rope in the chain locker to let the end go overboard. Some skippers have tied a fender, with enough scope to reach the surface...near the chain's bitter end...before letting it all go overboard...to mark the anchor's
location.
We've been cruising Maine (and Nova Scotia and New Brunswick, which are similar) and, for that matter, as my handle says, around the world. In fifty years I don't think I ever have used more than 200' of rode except once when we had to anchor in Nantucket Sound in 25 knots of wind. We've dragged only once -- in Fintry, with 150' of 5/8 stud link chain in 25 feet of water and a 400 pound anchor in 20 knots of wind -- on a flat granite slab (which obviously I didn't know).
By all means have a couple of hundred feet of appropriately sized nylon to bend on if you get into an odd spot and also to tie to a reserve anchor if you get in a spot where having two anchors would be good.
Jim
Equally important to length of scope is type of anchor(s) given the varying bottom conditions.
I've had Deltas drag in the soupy mud of the Chesapeake and Danforths unable to set in grassy conditions.
This one is windlass dependent. If you expect to use both often, get a windlass that will pull rope with the gypsy and splice it to the chain. My Maxwell HRC 10 handles the transition pretty nicely, just need to slow down sightly when the splice comes through on retrieval in deep water when there's some tension on it.
I figure the ideal is enough chain to cover most situations and allow a decent depth without line reaching the bottom in anchorages where bottom chafe is an issue. But then add line after the chain (assuming it'll fit in the locker) to allow deeper anchoring. There's not much reason to carry around additional heavy chain if it'll only get used once or twice a year.