Performance
SPEED
1,317 mph (2,120 kph) [Diff.-174 mph]
SPEED
1,491 mph (2,400 kph) [Diff.+174 mph]
RANGE
1,864 miles (3,000 km) [Diff.-932 miles]
RANGE
2,796 miles (4,500 km) [Diff.+932 miles]
CEILING
56,759 ft (17,300 m) [Diff.-2,297 feet]
CEILING
59,055 ft (18,000 m) [Diff.+2,297 feet]
RATE-OF-CLIMB
45,275 ft/min [Diff.-9,725 feet]
RATE-OF-CLIMB
55,000 ft/min [Diff.+9,725 feet]