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Glenn Ashmore
 
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Default Demonstration footage of boat anchors

A few observations:

First I noticed a number of other patterns on the beach including a Spade
but no test results for them.
Second, beach sand reacts very different from ocean bottom. And most
important, the test were done with effectively infinite scope. Zero angle
between the rode and the beach. This works against fixed shank patterns
like the claw and the plow because it holds the shank down keeping it from
righting. Setting on a normal 4 or 5 to 1 scope the rode is angled upward
which lifts the shank and helps right the anchor. When set on a 4:1 scope
the claw type will set easier than almost any other pattern which accounts
for its popularity. It just doesn't have the holding power.

The Rocna does have good holding power and is relatively inexpensive but the
big hoop just compensates for poor balance.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"Mic" wrote in message
...
http://video.google.com/videoplay?do...61924924082592

" Demonstration and comparison testing footage of plow and claw type
boat anchors vs a Rocna. Includes interview footage ... all »"

8 Minutes 20 sec ,

Mic 67