Proteus Specifications

Primary Function: Experimental - various functions
Contractor: Scaled Composites
Crew: 2, single-pilot operation. Future models could be unmanned.
Unit Cost: N/A
Powerplant
Two Williams Research/Rolls FJ44-2 turbofan engines, 2,300 lb thrust each
Dimensions
Length: 56.3 ft
Canard span: 54.7 ft; 64.7 ft with removable tips installed
Wingspan: 77 ft, 7 in; 92 ft with removable tips installed
Height: 17.6 ft
Weights
Empty: 5,900 lb
Gross Takeoff: 12,500 lb; 15,800 lb military usage
Performance
Speed: Mach 0.42 -- cruise; 280 kt at 40,000 ft
Ceiling: 65,000 ft at 7,000 lb
Endurance: Up to 18 hr
Armament
N/A