what was the speed limit on the m1 when it first opened
M1 motorway The first section of motorway was the Preston Bypass in Lancashire, which opened in 1958 (now part of the M6 motorway).[3] The M1 was Britain's first full-length motorway and opened in 1959.[5] The early M1 had no speed limits, no central reservation or crash barriers, and no lighting.[6]
M67 grenade The M67 can be thrown 30 to 35 metres (98 to 115 ft) by the average male soldier.[citation needed] Its fuze delays detonation between 4 and 5 seconds after the spoon is released. Steel fragments (not to be confused with shrapnel) are provided by the grenade body and produce an injury radius of 15 metres (49 ft), with a fatality radius of 5 metres (16 ft), though some fragments can disperse as far out as 250 metres (820 ft).[2][unreliable source?]