I also shop www.anchoring.com
make sure that your anchor rode is at least 7 times your depth (minimum of 5:1, max of 10:1), so if your anchoring in only 20' of water, you will need about 140' of anchor rode. if you anchor in 50' of water, you will need about 350' of anchor line.
Long Island Sound averages 60' of depth and has up to 7' of tide surge, so I would recommend a minimum of 400' of line, and maybe even go to 500'
http://njscuba.net/sites/site_li_sound.html
/The 1/2" Twisted Nylon is good and strong, but the 1/2" Braided Nylon is a bit softer and easier on your hands, if you have to handle it much. Good Luck!
go with 1/2. i agree with above you will need more rode to anchor in the sound. i have 600 ft.and have used 300 ft.plus to anchor in some spots.
OK but just so we are clear I don't have a windless so 200 feet should be OK right also the above site anchoring.com seems very good but I have a anchor do I need to buy the rope and chain kit or just rope as you can tell I'm new so I need to ask a lot of questions sorry
OK, I know I'm going to get flack here, but I would consider 400' - 500' of 1/2" anchor rhode on a 19' boat quite a bit of overkill for Long Island Sound. I would consider about 200' of 3/8" or 7/16" to be more realistic. There are real reasons why not to go oversize on diameter, and why would you want to anchor in the middle of the sound?
ok thanks i'm going to order 200 feet but the about site i do need chain with the rope because i don't think i will be able to attach myself also i was told 1/2 should be good i have a 19 foot silverlineI would completely agree. I chortled a bit on that one. I boat on the LI Sound. The average depths, yadda, yadda, yadda. There are a thousand protected coves and that's where you'll be anchoring. The average depth in most anchorages is more like 4-20 feet. You'll spend 90% of the time anchored in around 7 ft. of water. You're not going to drop anchor in the middle of the sound, even if you're broke down. Drift until you get closer to shore and drop anchor there to keep yourself out of trouble. Seatow/BoatUS will be along well before that anyway.
As for diameter, use the line manufacturers recommendation for the size and weight of the boat. 150-200 Ft of line is very common and typically more than enough. Now if you plan on anchoring in deep water to fish or dive, then that might be different, however I didn't get that impression from the OP.
I have a 28 ft. boat (8-9K) and use 200 ft. of 1/2 braided. I've had a couple of anchors drag, but yet to have a line part.
PS- I'd strongly suggest a boating education class - take it locally through US Power Squadron or CG Auxiliary. The people teaching the course boat where you do. Seriously, if you don't know the basics of how to figuire out how much and what kind of anchor rode you need, I guarantee there's a lot more that you don't know. How/why do you even think you need 1/2"?
This isn't a criticism- just trying to help you keep yourself safe out there. LI Sound is some serious water.
... Braided is generally not preferred for anchoring as it doesn't 'give' (stretch) as much as 3-strand, and consequently doesn't provide the shock absorption that 3-strand does. Braided can make for a 'jerky' ride at anchor.
... If you plan to spend nights 'on the hook', you really need a rode length (the total length of anchor rope and chain is known as the 'anchor rode') that'll let you achieve at least a 7:1 scope (and up to as much as 10:1). If you're strictly day-tripping you can probably get away with less as long as you're keeping an eye on things.