Like this, you mean?
You are, to my mind, the unchallenged King, Queen, Crown Prints and Grand Vizier of anchoring
, Noelex77, and I salute your consummate flair for -- and command of -- the practicalities and possibilities.
Here's my illustration, as promised.
The shackles should be used 'back-to-back', in pairs, so you can use the largest size possible.
An added advantage is the considerable water
resistance and energy absorption arising not just from the surface area of the extra chain, but from the energy it takes to cause the various pendulums to oscillate and undulate in a viscous medium, at different frequencies. This applies to the horizontal plane, IOW sailing around at anchor, a serious problem for some vessels in some circumstances, as well as to the presentation of snatch loads to the anchor in particular, but also to the bow.
This statistical smoothing prevents the oscillations aggregating and presenting in the form of chain shaking at the bow, and helps avert the horrific resonance phenomena which occasionally afflict kellets - which in shallow hurricane
holes have been known to be flung into the air in extreme instances)
The action of the loops of chain, unlike kellets, is progressive. In light winds but some current
, the boat lies very quietly rather than ranging around like a restless caged feline, due to the piles of chain on the bottom.
And I guess it's obvious but I'll point it out anyway: getting all chain out of the locker is a Good Thing, in conditions when the bow is plunging.
I have mentioned the main drawback in an earlier post. And the main benefit; short scope
anchoring in confined circumstances (whether from company of from enclosure) without resorting to (Boo , Hiss) multiple anchors.