We welcome comments, documents, questions, corrections, and challenges related to the Able IV, World's First Space Engine.

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Many thanks to all the kind people who have contributed documents, photos, encouragement, skepticism, and even library research.  Particular thanks for their specific contributions are owed to Art LeBrun, Gideon Marcus, Scott Schneeweis, and Kevin Rusnak.

Also, we wish to acknowledge Mr. Scott Schwalbach of Schwalbach Creative Group who designed this website of which we are very pleased and proud.

It is my pleasure to share the exciting, and history making story of Able IV, The World's First Space Engine.