First quarter results for General Dynamics revealed the largest number of new orders since mid-2008. Jay Johnson, GD's president and CEO said, "The Aerospace Group is off to a very good start in 2010." The business group includes Gulfstream Aerospace, Jet Aviation and GD Aviation Services divisions. International orders dominated the ledger for Gulfstream, continuing a trend away from North American dominance. Johnson added, "Orders were representative of every major international region." Default continue to be an issue with Gulfstream, as they have been with all aircraft manufacturers. But the company remains confident its ledger book will continue to strengthen in light of the improving world economy. Separately, development continues on Gulfstream's newest model, the G650 with Sunday's test flights conducted at the proposed maximum Mach speed (Mmo) of Mach 0.925.