Anchoring is not a precise
science due to the diversity of boat designs, boat profile factors, wind
and weather conditions, wave or tidal action, bottom composition and
conditions where anchoring, etc. Anchor sizing information can only be
approximate, and you are the best person to fully assess which anchor is
best for you.
These anchor recommendations
are from the manufacturer and are based on their knowledge gained from
testing, from figures and writings published by recognized experts; and
from information and data from other anchor manufacturers. Most anchor
sizing is based on 30 knot winds and a suitable size anchor/boat
relationship for normal use (commonly called a ‘working anchor’). A
storm anchor is generally 1 or 2 sizes larger than a working anchor
and is needed for winds up to 42 knots. It is generally understood that at
twice the wind speed you will need 4 times the holding power.
Anchor Dimensions Chart
For safe boating your anchor must be fitted
with an appropriate length and size of anchor rode (rope and chain), and to
allow the correct scope. The scope is the general angle of the rode from
the bow to the anchor on the sea floor. For best results use a scope of 7-1
(i.e. if water depth is 10’ including the height of your bow above the water
line a rode length of 70’ is needed). In good conditions 5-1 can be acceptable
(i.e. 10’ of depth needs a rode length of 50’). Sometimes the rode can be
shortened after the anchor is well set in good conditions in confined
situations. Do not leave your boat unattended on a shortened rode.
Because of the rapid assembly of all HydroBubble® anchors, we suggest
that you consider one for use as your STORM ANCHOR.
Email us your boat size and anchoring needs and we will
recommend the best anchor for you!
* Show us a website that offers an
identical anchor for less and we will beat their price. Must be done
before purchasing from us.
