"PBM" writes:
Looking at anchors, I notice that the Delta carries a recommended
chain size smaller than a Bruce or CQR. In other words, an 88# Delta
with 3/8" chain versus a 66-75# anchor of another type with 1/2"
chain.
snip

Take a look at C4 grade, 3/8" chain, with the Delta 88.

It is what my windlass supplier is recommending for my 60,000 lb boat.

SFWIW, they do a lot of work in the commercial and military markets.

HTH

Lew