Archimedes screw / Helical embedded screw anchor - Wharram Builders and Friends2024-03-28T22:08:14Zhttp://wharrambuilders.ning.com/forum/topics/archimedes-screw-helical-embedded-screw-anchor?commentId=2195841%3AComment%3A58721&feed=yes&xn_auth=notry this
http://www.youtube…tag:wharrambuilders.ning.com,2011-10-18:2195841:Comment:590282011-10-18T23:02:24.093Zalexhttp://wharrambuilders.ning.com/profile/alexvg
<p>try this</p>
<p> </p>
<p><a href="http://www.youtube.com/watch?v=HPAMUEAAMII" target="_blank">http://www.youtube.com/watch?v=HPAMUEAAMII</a></p>
<p><a href="http://en.wikipedia.org/wiki/Screwpiles" target="_blank">http://en.wikipedia.org/wiki/Screwpiles</a> more information</p>
<p><a href="http://www.screwpile.com.au/Moorings-Marine/applications/38" target="_blank">http://www.screwpile.com.au/Moorings-Marine/applications/38</a></p>
<p> </p>
<p>i hope this could…</p>
<p>try this</p>
<p> </p>
<p><a href="http://www.youtube.com/watch?v=HPAMUEAAMII" target="_blank">http://www.youtube.com/watch?v=HPAMUEAAMII</a></p>
<p><a href="http://en.wikipedia.org/wiki/Screwpiles" target="_blank">http://en.wikipedia.org/wiki/Screwpiles</a> more information</p>
<p><a href="http://www.screwpile.com.au/Moorings-Marine/applications/38" target="_blank">http://www.screwpile.com.au/Moorings-Marine/applications/38</a></p>
<p> </p>
<p>i hope this could help</p>
<p>alex</p>
<p> </p>
<p> </p> Thanks for all the good ideas…tag:wharrambuilders.ning.com,2011-10-15:2195841:Comment:588922011-10-15T02:54:46.511ZTomhttp://wharrambuilders.ning.com/profile/Tom
<p>Thanks for all the good ideas. I'll be sure to post some pics of whatever system we cobble together :)</p>
<p>Thanks for all the good ideas. I'll be sure to post some pics of whatever system we cobble together :)</p> A tractor tyre full of concre…tag:wharrambuilders.ning.com,2011-10-15:2195841:Comment:586312011-10-15T00:33:29.706ZGeminidawnhttp://wharrambuilders.ning.com/profile/Geminidawn
A tractor tyre full of concrete will weigh about two tonne but that's the idea. We get the tyres for free and sometimes the concrete too or get it cheap. We wait for a delivery or pouring at a construction site near by and offer to take the dregs. We make up the mooring between the tidelines at a low tide, this gives the concrete just enough time to kick off before the tide comes in and covers it. When the tide is high we float a raft over it with a gantry fitted with a chain block and tackle…
A tractor tyre full of concrete will weigh about two tonne but that's the idea. We get the tyres for free and sometimes the concrete too or get it cheap. We wait for a delivery or pouring at a construction site near by and offer to take the dregs. We make up the mooring between the tidelines at a low tide, this gives the concrete just enough time to kick off before the tide comes in and covers it. When the tide is high we float a raft over it with a gantry fitted with a chain block and tackle and lift it just enough to clear the sea bed and move it into place. We got a galvi well made heli…tag:wharrambuilders.ning.com,2011-10-14:2195841:Comment:587262011-10-14T13:13:01.336ZAnn and Neville Clementhttp://wharrambuilders.ning.com/profile/AnnandNevilleClement922
We got a galvi well made helix mooring purpose built at a hardware store in Florida. It wasn't much money and it was easy to install either by hand using the strength of two young men who wanted bottles of rum as their thanks or else a simple type of reverse bilge type pump that blew sand away as it drilled a hole into which we simply dropped the 6 foot long inch and a quarter thick shaft with its 10 inch wheel helix screw. Next day we had a 40 knot wind and the helix just stayed in the hole…
We got a galvi well made helix mooring purpose built at a hardware store in Florida. It wasn't much money and it was easy to install either by hand using the strength of two young men who wanted bottles of rum as their thanks or else a simple type of reverse bilge type pump that blew sand away as it drilled a hole into which we simply dropped the 6 foot long inch and a quarter thick shaft with its 10 inch wheel helix screw. Next day we had a 40 knot wind and the helix just stayed in the hole and gradually the hole has filled in nicely. The entire helix is under the sand now and only a very heavy mooring chain is seen going down there. Likely the cement for that tractor tire would cost more than we paid and weigh more too. Hi Tom,
The simple system we…tag:wharrambuilders.ning.com,2011-10-14:2195841:Comment:582662011-10-14T08:59:59.447ZGeminidawnhttp://wharrambuilders.ning.com/profile/Geminidawn
<p>Hi Tom,</p>
<p>The simple system we use here is old tyres with a galvanized steel hoop, filled with concrete, Ideal for sandy bottoms, simple, cheap and secure. The size of the tyre denotes the size of the boat you want to secure. For a Pahi 63 you'd be looking a an old large tractor tyre at the very least.</p>
<p>Hi Tom,</p>
<p>The simple system we use here is old tyres with a galvanized steel hoop, filled with concrete, Ideal for sandy bottoms, simple, cheap and secure. The size of the tyre denotes the size of the boat you want to secure. For a Pahi 63 you'd be looking a an old large tractor tyre at the very least.</p> A friend used one from the po…tag:wharrambuilders.ning.com,2011-10-14:2195841:Comment:586282011-10-14T05:27:27.164Zvernhttp://wharrambuilders.ning.com/profile/vern
A friend used one from the power poles that hydro uses, it's been there for 4 years. holds a 36' steel boat works great! only problem was with the tides and boat swinging it unscrewed it some, so he put a small anchor with a chain attached to the eye and that stopped it from turning. there galvanized so will last for many years.
A friend used one from the power poles that hydro uses, it's been there for 4 years. holds a 36' steel boat works great! only problem was with the tides and boat swinging it unscrewed it some, so he put a small anchor with a chain attached to the eye and that stopped it from turning. there galvanized so will last for many years. In the Arabian Gulf we used t…tag:wharrambuilders.ning.com,2011-10-14:2195841:Comment:587212011-10-14T04:59:50.201ZTrevor Lowmasshttp://wharrambuilders.ning.com/profile/TrevorLowmass
In the Arabian Gulf we used to chain 2 or 3 engine bocks together, float them out with a couple of of oil drums before dropping them to the bottom. Didn't move much and seemed to be enough to hold 30feet monohulls. Cheap and cheerful but it was in relatively sheltered water.
In the Arabian Gulf we used to chain 2 or 3 engine bocks together, float them out with a couple of of oil drums before dropping them to the bottom. Didn't move much and seemed to be enough to hold 30feet monohulls. Cheap and cheerful but it was in relatively sheltered water. Well I found one made of stai…tag:wharrambuilders.ning.com,2011-10-14:2195841:Comment:586262011-10-14T03:29:55.763ZTomhttp://wharrambuilders.ning.com/profile/Tom
<p>Well I found one made of stainless, but it looked kind of like some kid had made it in his high school welding class. Didn't have the helix right and the welds weren't worth...anyway, it was a waste of time on somebody's part.</p>
<p> </p>
<p>I did find a company that seems to make them properly at <a href="http://www.helicalanchorsinc.com/" target="_blank">http://www.helicalanchorsinc.com/</a> but that's a lot of weight to be sending overland.</p>
<p> </p>
<p>Sam, thanks for the idea of…</p>
<p>Well I found one made of stainless, but it looked kind of like some kid had made it in his high school welding class. Didn't have the helix right and the welds weren't worth...anyway, it was a waste of time on somebody's part.</p>
<p> </p>
<p>I did find a company that seems to make them properly at <a href="http://www.helicalanchorsinc.com/" target="_blank">http://www.helicalanchorsinc.com/</a> but that's a lot of weight to be sending overland.</p>
<p> </p>
<p>Sam, thanks for the idea of checking with the local power company. They are used locally to anchor the posts that the electrical lines are run on.</p>
<p> </p>
<p>David, please excuse my poor memory for names, and thanks for enlightening me as to JMT. Yes launch was fun, great to be in the water :) Still have a lot of work to do though.</p>
<p> </p>
<p>Meanwhile, I'm going to go find a couple more small engine blocks. Hate to be getting a bigger hammer when I could just use my brain and others to create a more elegant solution, but unfortunately I lack the welding skills. Definitely a project for later though :)</p> Tom ,the photos of your boat…tag:wharrambuilders.ning.com,2011-10-09:2195841:Comment:581892011-10-09T16:18:33.951Zboatsmithhttp://wharrambuilders.ning.com/profile/qe0j3ojqb10
Tom ,the photos of your boat look great. Must fell terrific to launch even with violated savings. JMT was meant to mean just my thoughts. David
Tom ,the photos of your boat look great. Must fell terrific to launch even with violated savings. JMT was meant to mean just my thoughts. David i have heard of people using…tag:wharrambuilders.ning.com,2011-10-09:2195841:Comment:578902011-10-09T08:02:49.973Zsamhttp://wharrambuilders.ning.com/profile/sam
i have heard of people using screw anchors here in nz .they are fairly easy to get the power & telephone companys use them to stay poles with
i have heard of people using screw anchors here in nz .they are fairly easy to get the power & telephone companys use them to stay poles with