President Barack Obama traveled to Dover Air Force Base in Delaware on Tuesday to honor the 30 U.S. troops who were killed in a helicopter crash in Afghanistan on Saturday.
The pilots of a business jet which clipped an airliner over Brazil in 2006, killing 156 people, were sentenced Tuesday by a Brazilian judge to four years and four months of community service to be served in the United States.
Rarely is much attention paid to one of the most important design aspects of modern jet engines: The cowlings. Aviation safety expert David J. Williams explores the history and development of the modern engine enclosure.