Posted for "Bart D. Hull" <bdhull@inficad.com>:

 Ron,
 
 Plastic media blasting or walnut shell blasting is what is used for stripping
large commercial aircraft. Gets rid of the paint without
 doing too much damaged to aluminum, plastic etc. Nice thing about walnut
shells is there is no abrasive residue left over by the process
 and anything left can rot away. Just don't get too much left in an engine as
it will expand and clog up a oil pump screen.
 
 Bart D. Hull
 bdhull-nospam@inficad.com
 Tempe, Arizona