Performance
SPEED
646 mph (1,040 kph) [Diff.+51 mph]
SPEED
595 mph (958 kph) [Diff.-51 mph]
RANGE
4,598 miles (7,400 km) [Diff.-5,490 miles]
RANGE
10,088 miles (16,235 km) [Diff.+5,490 miles]
CEILING
55,003 ft (16,765 m) [Diff.+49 feet]
CEILING
54,954 ft (16,750 m) [Diff.-49 feet]