Clew is a chart plotting program. Connect a GPS to your laptop, load some maps, and watch the dots crawl across the map as you drive, sail, etc. It currently works with maps scanned/photographed into the computer and any GPS with NMEA output.

A lower corner of a square sail, or the after corner of a fore-and-aft sail.

A loop and thimbles at the corner of a sail.

A combination of lines or nettles by which a hammock is suspended.

A ring of metal which is used to join several flying lines or wires to a single pulling wire.

A device, usually steel plate or iron ring, that allows the transition of a number of lines into one.

An indication from the skipper as to what he might do next.

That which guides or directs one in anything of a doubtful or intricate nature; that which gives a hint in the solution of a mystery.

A ball of thread, yarn, or cord; also, The thread itself.

To direct; to guide, as by a thread.

a ball of yarn or cord or thread

evidence that helps to solve a problem

Device that connects several ropes or cables to one, usually stronger, rope or cable.

roll into a ball