yellowsub asked for some how-to on anchor trolleys. I've got a pretty low cost, low tech version. Saw it on another site and thought the design was pretty elegant.
Loop then knot the ends of a 20" length of shock cord and slide the loop through eyelets mounted on either end of the yak. The knot should be big enough to not slip through the eyelet. These provide your shock absorbers for waves, wake, wind, etc... and enough flex to allow you to make a loop around the cleat
From there you clip a carabiner to the looped shock cord, and run the trolley line through the carabiners. Attach both ends of the trolley line to on O-ring. Anchor line runs through the O-ring.
The beauty of this model is that you simply pop the carabiners off, slip the loops of shock cord out of the eyes, and the whole thing is instantly removed from the boat.
But it didn't quite work for me - the eyes that my shop installed are too small to slip the doubled shock cord through, so I used the next best thing to Duct Tape - cable ties! Its a little less elegant than the original, but has worked well so far.
Parts list:
2 small carabiners (I cheaped out and went with zinc)
1 O-ring (1.5-2")
4' shock cord
30' trolley line (I used 4mm cord)
2 eyelets
1 cleat
optional: 2 cable ties (do yourself a favor and get a big enough eyelet, or smaller shock cord)
eyelet at each end attached to the kayak
cable tie, shock cord & carabiner at front
cable tie, shock cord & carabiner at rear
O-ring
cleat
