Canadian Yachting May 2020 - 18

Figure 7. Anchor Alarm

Figure 6. Vulcan Anchor

We anchored one evening with a nice
offshore breeze. There were already three
or four boats in this small anchorage, so
our first attempt was in about 20 feet of
water. Our charter boat had 75 feet of
chain and 75 feet of rope. With 5 feet of
bow out of the water, the best we could
accomplish was a 6:1 scope (150 feet
divided by (20+5) or 25 feet). We dragged
on our first attempt, so we hauled the
anchor in and proceeded to re-set it.
On the second try in 10 feet of water,
we were able to set the anchor solidly. The
18

Can adian Ya cht i ng

weather called for light winds overnight,
but they were to shift briefly from offshore.
For that reason, I chose to sleep in the
cockpit. Besides, it is so beautiful looking
at the star filled sky in the islands when you
have escaped a cold Canadian winter. You
can see in the photo that the wind did shift
and put us in a lee shore situation, but with
light winds. I reset the anchor alarm circle
on my iPad and slept lightly with the alarm
by my ear. I got a good night's sleep with
no alarm going off. (By the way, I have
used Anchor! by Marie Jullo on my iPhone
and iPad for the past five or six years with
complete confidence.)
Once the anchor and anchor alarm are
both set, we notice our boat tended to sail
at anchorage. For a noon anchoring - at a
scope of 5:1 - I was able to get some pictures of the anchor's activity on the bottom.
With the anchor set just outside the
top of the image and the boat swinging, or
yawing at the bottom of the image, you
can see how much the boat moves even in
a moderate breeze. Most monohulls will
stay within an arch of under 60-degrees.

Catamarans have been known to swing
through an arch of 100 to 120-degrees.
With sufficient scope to keep the
results of the yawing away from the anchor
itself, this swinging can be a little uncomfortable but not dangerous. When the
wind increases and the rode is pulled taut,
the yawing action can cause the shank of
the anchor to pivot back and forth, churning up the bottom and releasing the grip
the anchor has. The result is the boat
starts to drag slowly at first but then can
suddenly release if the anchor hits a soft
spot or picks up a rock or piece of coral.
As you can see in the photo, chain
holds the shank still and keeps the shank
down in the bottom, resisting anchor rotation. When the anchor is deeply set, the
shank also acts as a vertical fluke to reduce
the anchor's desire to shift. Yawing can be
significantly reduced with a riding sail, a
kellet or a bridle - effectively increasing
the holding ability of the anchor.
A two-point anchor bridle (shown page
20 on a catamaran) will reduce this yaw
significantly and result in a better night's
MAY 2020



Canadian Yachting May 2020

Table of Contents for the Digital Edition of Canadian Yachting May 2020

At the Helm: Uncharted Waters
Marina Yacht Club: Krates Marina, Keswick
Special Feature: Eye Care - Beware of What You Cannot See
Special Feature: Anchoring - Science, Art and Experience
Power Review: Greenline 33 Hybrid
Sail Review: Beneteau 30.1
The Port Hole: May 2020
DIY/Maintenance: Cored Deck Repair
Crossing the Line: Kjallarinn
Canadian Yachting May 2020 - Intro
Canadian Yachting May 2020 - Cover1
Canadian Yachting May 2020 - Cover2
Canadian Yachting May 2020 - At the Helm: Uncharted Waters
Canadian Yachting May 2020 - 4
Canadian Yachting May 2020 - 5
Canadian Yachting May 2020 - Marina Yacht Club: Krates Marina, Keswick
Canadian Yachting May 2020 - 7
Canadian Yachting May 2020 - 8
Canadian Yachting May 2020 - 9
Canadian Yachting May 2020 - Special Feature: Eye Care - Beware of What You Cannot See
Canadian Yachting May 2020 - 11
Canadian Yachting May 2020 - 12
Canadian Yachting May 2020 - 13
Canadian Yachting May 2020 - 14
Canadian Yachting May 2020 - 15
Canadian Yachting May 2020 - Special Feature: Anchoring - Science, Art and Experience
Canadian Yachting May 2020 - 17
Canadian Yachting May 2020 - 18
Canadian Yachting May 2020 - 19
Canadian Yachting May 2020 - 20
Canadian Yachting May 2020 - Power Review: Greenline 33 Hybrid
Canadian Yachting May 2020 - 22
Canadian Yachting May 2020 - 23
Canadian Yachting May 2020 - 24
Canadian Yachting May 2020 - 25
Canadian Yachting May 2020 - Sail Review: Beneteau 30.1
Canadian Yachting May 2020 - 27
Canadian Yachting May 2020 - 28
Canadian Yachting May 2020 - 29
Canadian Yachting May 2020 - 30
Canadian Yachting May 2020 - The Port Hole: May 2020
Canadian Yachting May 2020 - 32
Canadian Yachting May 2020 - 33
Canadian Yachting May 2020 - 34
Canadian Yachting May 2020 - 35
Canadian Yachting May 2020 - 36
Canadian Yachting May 2020 - 37
Canadian Yachting May 2020 - 38
Canadian Yachting May 2020 - 39
Canadian Yachting May 2020 - 40
Canadian Yachting May 2020 - 41
Canadian Yachting May 2020 - 42
Canadian Yachting May 2020 - 43
Canadian Yachting May 2020 - 44
Canadian Yachting May 2020 - 45
Canadian Yachting May 2020 - 46
Canadian Yachting May 2020 - 47
Canadian Yachting May 2020 - 48
Canadian Yachting May 2020 - 49
Canadian Yachting May 2020 - 50
Canadian Yachting May 2020 - 51
Canadian Yachting May 2020 - DIY/Maintenance: Cored Deck Repair
Canadian Yachting May 2020 - 53
Canadian Yachting May 2020 - 54
Canadian Yachting May 2020 - 55
Canadian Yachting May 2020 - 56
Canadian Yachting May 2020 - 57
Canadian Yachting May 2020 - 58
Canadian Yachting May 2020 - 59
Canadian Yachting May 2020 - 60
Canadian Yachting May 2020 - 61
Canadian Yachting May 2020 - Crossing the Line: Kjallarinn
Canadian Yachting May 2020 - Cover3
Canadian Yachting May 2020 - Cover4
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