Especially with the Mediterranean (Croatia, Turkey and Greece) in mind, all experts agree on the following recommendations:
* The ship should carry at least two different anchors to suit a wider variety of seabeds. No single anchor design is best in all conditions. By far the best combination is a genuine!
Danforth with a CQR.
* A Bruce anchor is useless and unacceptable, but can be handy as a third anchor in very calm conditions because it is so easy to set and handy on a rocky seabed.
* For a 45 feet sailing yacht the anchor chain should be 80 metres minimum, for a yacht of 35 feet a minimum of 60 metres is recommended. Most charter yachts in Greece are fitted with shorter chains → find reliable charter agencies.
* The Danforth type anchor:
o should be of a good brand and size (Performance 37, Fortress FX 37), and not the usual cheap and dangerous imitation!
o should at least have a stock of good length, if the stock doesn't protrude well from the flukes (>10 cm at both sides) the anchor is useless and will simply skid along the seabed on its side.
o preferably have an adjustable fluke angle that can be changed from the normal angle of 32 degrees to a soft or muddy seabed angle of 45 degrees (like the Fortress FX).
* There should be no main anchor. The stern anchor plus rode must be as safe and reliable as the bow anchor when used without a second anchor.
Bron:
http://www.sailingissues.com/yachting-guide/anchoring-tips.html
Groet Martin