It lands the right way up every single time...
Thanks to the SPADE's unique triangular
ballast chamber the anchor is designed to land at the optimum angle for
penetration every time (a similar angle to a chisel being used in wood).
...it digs in...
As well as tipping the anchor to the optimum
angle, the ballast chamber positions a staggering 50% of the anchors weight
directly over the penetrating tip, maximising its ability to dig in.
The SPADE anchor actually begins to dig in the second it lands on the
seabed, in exactly the same way as your foot starts to bury if you stand in
a sand pool for a few minutes. Having the right angle and weight
distribution assists the SPADE to penetrate thick weed and kelp, where other
anchors would simply slide over the top and gather the weed.
Once it has dug in, the SPADE presents its
full surface area towards the direction of load - the larger the surface
area, the greater the holding power. Any load sufficient enough to
move the anchor will cause it to bury further, Whereas a convex* blade
can pull out with a sudden wind or tide shift, the SPADE's concave blade
will remain buried. A concave blade acts a bit like a parachute under
the seabed and continues to remain buried and offer maximum resistance
even when the load is so great that it begins to move. The SPADE will
not pull out during wind or tide shifts, instead it chisels its way around
to the new direction.
...and keeps holding... full stop!
There have been reports of SPADEs holding
during earthquakes, hurricanes and even Tsunamis. SPADE anchors are
built to withstand enormous loads as they keep holding long after other
anchors have dragged. On the larger sizes** the shanks are fabricated
to form a triangular box section to maximise strength without compromising
weight distribution. SPADE anchors are built for optimum performance
rather than down to a price and come with a six month manufacturers full
*Convex blades are found on many anchors such
as plough anchors.
**Model 80 and above.