posted 07-15-2013 07:49 AM               

This small format book (8x6 inches), originally released by Rocketdyne, was republished by Periscope Films on May 23, 2012.

The Space Shuttle’s Main Engine (SSME) was a highly innovative, high performance, liquid propelled rocket engine with a variable thrust and mixture ratio. It was controlled electronically by an automatic system that could perform checkout, start, mainstage and shutdown functions. Ignited on the ground, the three engines on the orbital vehicle burned for an average of ten minutes during the boost phase. The SSME used a staged combustion cycle in which propellants were burned at high pressure and relatively low temperature in the preburners, and then completely combusted at high temperature and high pressure in the main chamber before expanding through the nozzle. Hydrogen fuel was usedduring combustion to cool vulnerable parts of the engine. Originally created in 1973 during the development of the Space Shuttle Program by NASA prime contractor Rockwell International, this informative booklet provides an overview of the SSME’s design and components and their physical characteristics.

posted 07-18-2013 08:52 AM               

This is a very low quality reprint. The text is blurry and hard to read. It looks like a copy of a copy, with dots and other artifacts scattered throughout the text. The images suffer from the same process, making some captions and call outs unreadable.

posted 07-18-2013 03:43 PM               

quote:

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Originally posted by garymilgrom:
This is a very low quality reprint. The text is blurry and hard to read. It looks like a copy of a copy, with dots and other artifacts scattered throughout the text. The images suffer from the same process, making some captions and call outs unreadable.

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Unfortunately, this appears to be a common trait of Periscope's reprints. I've ordered two aircraft manuals from Amazon (at different times), and returned both of them for the same reasons Gary cites.