As I recall, Marin was using a Bruce 33 anchor. In my opinion, a Bruce 44
should be the mimimun size Bruce for a 36 GB.
The issue isn't weight, it's design. The holding power of an anchor is
determined far more by its design than its weight. If this was not true, the
Fortress wouldn't work, yet it is consistently rated at or near the top in
holding power of almost every anchor test that includes it. Weight is a
factor in penetration, but once the anchor has set it has little to do with
how well it stays set at least in the relatively lightweight sizes used on
boats like ours. The fluke size between the 33 and 44 pound Bruce anchors is
very similar. Between 33 and 66 pounds, weight is going to be more of a
factor and of course, the flukes will be much larger. But our boat can't
accommodate a 66 pound anchor and I don't want to pull up a 66 pound anchor in
the event of a windless failure.
In any event, the friend I mentioned has a 36' foot boat considerably lighter
and with less windage than ours, and he uses a 44 pound Bruce, and if
anything, has had it drag more than we did.
After our final, and most dangerous dragging experience with our Bruce I
started paying real close attention to what was on the boats around us.
Thirty three pounds is the weight of just about every Bruce I saw on boats in
our marina in the 34 to 42 foot range. This may be too small an anchor, but I
don't think going to a 44 pound version would make much if any difference.
I'm convinced it's a design that just doesn't scale down very well. The fluke
design, while giving the anchor its fast-setting characteristics, simply
doesn't have the shape, the surface area, the angle, or all three to resist
much pulling, something which seems to be born out in almost every anchor
test.
If I ever buy a North Sea oil rig I'll re-consider the Bruce, but for little
bitty vessels like ours I've become convinced there are far superior anchor
designs out there, particularly today. Any anchor can drag if the conditions
are wrong. But I feel that the design of the Bruce--- when scaled down to the
sizes used on the typical recreational boat--- encourages it.
C. Marin Faure
GB36-403 "La Perouse"
Bellingham, Washington
i put a Bruce 110lbs on the 70 footer i captain and it works very well up
and down the east coast and bahamas. it sets instantly and holds well. boat
has a 20' beam and tall skylounge so it has a lot of windage.
I only ran out of holding power once, 40kts+ storm in Cape Look out bight.
it was a slow, manageable drag so no big deal. i'm not sure anything else
would have performed better. I raise anchor and moved closer to shore to
reduce the fetch, it held fine after that.
I do use 7:1 scope and all chain, when i set it, the boat just snaps in line
instantly.
On the 53 Hatt I'm currently taking to Houston, I recomended to the owner
that he upgrades the FX37 and a steel danforth to a Bruce 66. same results.
great holding, quick set.
pascal
Miami, fl
hatteras 53MY
live helmcam and GE track @ www.sandbarhopper.com