On Fri, 1 Aug 2008 13:18:54 -0400, "Roger Long"
wrote:

Someone asked here quite a while ago about a sail track lubricator that
could be sent up and down the mast to spray dry lube into the track. I
found myself in need of such a device so I built one.

http://home.maine.rr.com/rlma/TrackLube.htm

Took about 15 minutes to make and worked perfectly. Sail now zips up and
down freely again.

My version has a small rocket and parachute.