Once ignited, it could attain speeds of 400 miles per hour and ranges exceeding 150 miles.
The trains sometimes attain speeds of 80 miles per hour with intervals between trains of as little as 90 seconds.
The prototype systems for which Cray and I.B.M. were awarded contracts are to attain speeds of at least a quarter of that goal.
The velocity of a flow often exceeds 100 km (60 miles) per hour and may attain speeds as great as 160 km (100 miles) per hour.
Orcas can attain speeds of more than 30 knots, so a line of them going at full tilt moves a lot of water.
They are swift swimmers; the bottlenose can attain speeds of nearly 30 km/hr (18.5 mph) in short bursts, and common dolphins are even faster.
The heavier four-person sleds attain speeds approaching 160 km (100 miles) per hour; the smaller, lighter two-person sleds are only slightly slower.
However, no such precautions will be taken for skeleton and bobsled, which can also attain speeds in excess of 85 miles per hour and have had their share of violent crashes, including dozens on this track since it opened two years ago.
The racerunners or whiptails (Aspidoscelis) can attain speeds of 29 km (18 miles) per hour, which, in terms of their own body length (less than 50 cm [20 inches] long), puts them in a class with fast terrestrial mammals.
A simplified submarine, the V-80, built in 1940 and propelled by a Walter turbine system, could attain speeds of more than 26 knots submerged for a short period of time.
