Precise Flight, Inc. (www.preciseflight.com) for image used in Chapter 16 SPX Service Solutions (www.spx.com) for image used in Chapter 16 SuperFlash Compressed Gas Equipment (www.oxyfuelsafety.com) Mr. Tim Mara (www.wingsandwheels.com) for images used in Chapter 16  Mr. Bill Abbott for image used in Chapter 17 Additional appreciation is extended to Dr. Ronald Sterkenburg, Purdue University; Mr. Bryan Rahm, Dr. Thomas K. Eismain,  Purdue University; Mr. George McNeill, Mr. Thomas Forenz, Mr. Peng Wang, and the National Oceanic and Atmospheric  Administration (NOAA) for their technical support and input. XIII