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Uncrewed torpedo speed claims range from 60 knots (110 km/h; 69 mph) for the British Spearfish torpedo [64] to 200 knots (370 km/h; 230 mph) for the Russian VA-111 Shkval. [ 65 ] ^ a b Ground effect vehicles (a.k.a. "Wing-In-Ground effect vehicles") are classified as maritime vessels, rather than aircraft, by the International Maritime ...
The time it takes a vehicle to accelerate from 0 to 60 miles per hour (97 km/h or 27 m/s), often said as just "zero to sixty" or "nought to sixty", is a commonly used performance measure for automotive acceleration in the United States and the United Kingdom. In the rest of the world, 0 to 100 km/h (0 to 62.1 mph) is used.
Kilometres per hour are on the left and miles per hour on the right.* A speed limit is the limit of speed allowed by law for road ... 60–120: 80: 40–60: 5 mph (8 ...
The kilometre, a unit of length, first appeared in English in 1810, [9] and the compound unit of speed "kilometers per hour" was in use in the US by 1866. [10] "Kilometres per hour" did not begin to be abbreviated in print until many years later, with several different abbreviations existing near-contemporaneously.
60 to 40 mph (97 to 64 km/h) Speeds declined by 4 mph (6 km/h) Crashes declined by 14% US (22 states) (1992) 5 to 15 mph (8 to 24 km/h) decreases: No significant changes NYC, US: 30 to 25 mph (48 to 40 km/h) decreases: 28% reduction in all fatalities and 48 percent reduction in pedestrian fatalities [121] Country (year) Speed limit reduction
States with higher speed limit than pre-1974: 8; States with lower speed limits than pre-1974: 17 [c] The introduction to 70 or 75 mph (112 or 120 km/h) speed limits was in effect that year. The introduction to 80 mph (almost 130 km/h) limits was in about 2005, and Texas introduced 85 mph (136 km/h) in 2011.
The Minnesota Drive Expressway features a 60-mile-per-hour (97 km/h) speed limit, as does the Richardson Highway between Fairbanks and North Pole. Since the mid-1990s, Alaska's major highways have gradually been upgraded from 55 mph to 60 or 65 mph. However, several continue to carry the default 55 miles per hour (89 km/h) speed limit, including:
The highest design speed for a road or segment is the design speed of its least favorable part. For example, given a road segment with a 60 miles per hour (97 km/h) design speed except for a curve with a 45 miles per hour (72 km/h) design speed, the entire segment would have a 45 miles per hour (72 km/h) design speed. The road may have a 45 ...