David iJesteri Smith and Lisa Grey of the Flight Test Historical Foundation receive a $25,000 donation from Brian Sheridan and Richard Tighe on behalf of Bechtel National, Inc. The Flight Test Historical Foundation and the Air Force Flight Test Museum are a bit closer to their goal of moving the museum outside of the secure gates of Edwards Air Force Base, thanks to the generous donation of $25,000 from Bechtel National Inc. Bechtel is the largest construction and civil engineering company in the United States and the 4th largest privately owned company in the U.S., with more than 53,000 employees worldwide. iWe are happy to support such a worthy cause,i said Richard Tighe, Bechtelis vice president of business development.