These fixed-wing aircraft with their gas-turbine engines combine cruise speeds that can surpass Mach 0.80 with support for flying nonstop four or more hours at higher altitudes while carrying four or more passengers. Such characteristics enable support for short- and long-haul private and business trips, medical missions, surveillance, research, cargo transport, and other operations. Some leading brands of new and pre-owned jet aircraft models include Beechcraft, Boeing, Bombardier, Cessna, Dassault Aviation, Embraer, Gulfstream, and Learjet.