Skrew anchor says:
Originally Posted by Scout 30
I think you're confusing anchoring
with a mooring. Helix anchors are used for moorings & requires special machinery to screw them into the sea bed
. There are several types of mooring anchors but other than the Helix they are usually quite heavy & require some sort of crane or davit to get them out of the boat. Some people will even use an engine
block but that's probably illegal & they don't work very well anyway.
when it is necessary “to anchor:” something temporarily or definitively in the ground, soft ground or sand.
I understand both, but as mentioned the Skrew mooring anchor also refers to temporary/anchor, vs mooring, as I sited above. It shows two divers screwing it in with a pipe, and refers to this ease of installation
often on it's site. The site even says to use a pipe and mentions nothing of needing an auger to screw it in. This lead me to believe you could set it and remove each season. The helix which you are probably thinking of, is longer and harder to install, but I have read it can also can be done DIY if you are clever enough and not in a medium/hard bottom. but I digress.
The original question is without a Skrew, I just don't see how dozens and dozens of live-a-board boats stay at anchor each season and never move, vs my small boat with a quite over sized plow anchor moving with some big waves even on a shallow angle of the rode
and plenty of heavy chain. Gulfport, FL has a soft mud bottom, with no mooring field.
After half a day of research
it seems as though plow anchors are the cheap
option for manufactures and the Mantus
, Sarca excel or super sarca have much better setting and holding like a rocna
you mentioned, but videos show the rocna won't reset that well after being covered in mud.
I feel more confident now if I got a Mantus
, and maybe set a GPS alarm
and stay aboard for the first few weekends, then switch to leaving overnight by it's self for the weekends