The most current version of the Adobe Acrobat software may be obtained free of charge from the Adobe web site:
Michael Sisley sent this pdf file of the Estes Alpha Mini-Book of Model Rocketry for us all to enjoy. Click on the cover image below to get the document (10.9 Mb).
The most current version of the Adobe Acrobat software may be obtained free of charge from the Adobe web site:
Sven Knudson