Engine: One Pratt & Whitney J57-P-23 turbojet, 10,200 lb.s.t. dry and 16,000 lb.s.t. with afterburning, or a J57-P-25, 11,700 lb.s.t. dry and 17,200 lb.s.t. with afterburning. Performance: Maximum speed: 825 mph at 35,000 feet (Mach 1.25). Initial climb rate: 13,000 feet per minute. An altitude of 51,800 feet could be attained in 9.9 minutes. Combat ceiling was 51,800 feet and service ceiling was 53,400 feet. Maximum range was 1350 miles.
Performance
Maximum speed: Mach 1.25 (825 mph, 1,304 km/h) at 40,000 ft (12,190 m)
Range: 1,350 mi (1,170 nm, 2,175 km)
Service ceiling: 53,400 ft (16,300 m)
Rate of climb: 13,000 ft/min (66 m/s)
Wing loading: 35 lb/ft² (172 kg/m²)
Thrust/weight: 0.70
This is the official USAF data.
TECHNICAL NOTES:
Armament: 24 unguided 2.75-in. rockets and six guided missiles
Engine: One Pratt & Whitney J57 of 16,000 lbs. thrust with afterburner
Maximum speed: 810 mph
Cruising speed: 600 mph
Range: 1,000 miles
Ceiling: 55,000 ft.
Span: 38 ft. 1 in.
Length: 68 ft. 4 in. (including boom)
Height: 21 ft. 2 in.
Weight: 31,559 lbs. maximum
Don's info is correct.....