The Hanriot H.31 was a single engine, single seat French biplane fighter aircraft built in 1925 to compete in a government programme. It was not successful...

(64 km/h) Estimates include 30 mph (48 km/h), 25–31 mph (40–50 km/h) (specifically for the brown hyena) and 37 mph (60 km/h): 160  Falling with the Falcon | Flight...

H31 may refer to: Hanriot H.31, a French biplane fighter aircraft HMS Griffin (H31), a Royal Navy G-class destroyer later transferred to the Royal Canadian...

pelagic, fast predatory fish capable of swimming at speeds up to 50 km/h (31 mph). Although fossil teeth of Isurus have been reported from as early as...

a 250 m (270 yd) track. The pacer starts at 30 km/h (19 mph), gradually increasing to 50 km/h (31 mph) by its final circuit. The pacer leaves the track...

The Mikoyan MiG-31 (Russian: Микоян МиГ-31; NATO reporting name: Foxhound) is a supersonic interceptor aircraft developed for the Soviet Air Forces by...

100 km/h (62 mph) or 110 km/h (68 mph). Statutory speed limits for school zones tend to be 30 or 40 km/h (19 or 25 mph) in urban areas and 50 km/h (31 mph)...

more than 90 km/h (56 mph; 25 m/s; 49 kn), particularly in the Rhône Valley. Its average speed during the day can reach about 50 km/h (31 mph; 14 m/s; 27 kn)...

ISO 31 (Quantities and units, International Organization for Standardization, 1992) is a superseded international standard concerning physical quantities...

60 km/h (37 mph) with 50 km/h (31 mph) speed limits in New South Wales, Australia, showed only a 0.5 km/h (0.3 mph) drop in urban areas and a 0.7 km/h (0...