A lot has been added to Stirling Engine knowledge since 1983, but an awful lot of the basics and the not so basic were know well before then. Also, a 12v 200 W battery charger design paper published in 1994 gives an intimate look at the design of the most commercially successful Stirling Engine system ever developed (in NZ or anywhere else :-) ). Excellent links page which most of the following came from http://home.comcast.net/~snapburner/Links.html ___________ Stirling Engine Design Manual, 2nd edition 1983 The great and famous] William Martini. NASA, Lewis Research Centre grant, 410 pages of copied PDF's. Old clunky and ultra-superb. Any Stirling Engine wannabee designer should have a copy. 410 page pdf. 18.7 MB http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19830022057_1983022057.pdf First edition of same. 1978 370 pages. 19 MB http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19780016056_1978016056.pdf Technology assessment of external heat systems for Stirling heat pumps. 117 page pdf. 6.4 MB. Martin Marietta. Oak Ridge National laboratory. !!! http://www.osti.gov/bridge/servlets/purl/88661-fslkmP/webviewable/88661.pdf Development of a hermetically sealed Stirling engine battery charger. I can;'t believe they make copies of this public :-). 10 page pdf Don Clucas (Whispergen aborner) http://www.whispergen.com/content/library/Don_Clucas_Stirling_engine_generator_development.pdf Micro CHP paper Stirling and others. Mainly in Dutch. Contents in English. Pictures in engu\inering. University of Utrecht 127 pages. http://nwi.geog.uu.nl/content/files/_1127395929_allerlaatste%20versie%20z.i.doc -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist