Robert Grand is an author, publisher and aerospace engineer. During his 23 years in engineering, Robert worked for McDonnell Douglas, Cirrus Design, NASA and Pratt & Whitney, supporting numerous aeronautical programs, including:  Advanced F-15 engine design, Space Shuttle launch flight path evaluation, ST-50 proof-of-concept aircraft design and testing, and jet engine liner overhaul and repair on 737, 747, 757, MD-80, MD-90, DC-10, MD-11, A319, A320 and A321 aircraft.