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For both sexes, excluding the male's tusk, the total body size can range from 3.95 to 5.5 m (13.0 to 18.0 ft); the males are slightly larger than the females. The average weight of an adult narwhal is 800 to 1,600 kg (1,800 to 3,500 lb).
Total width and height: See limits under âAll vehiclesâ. Total length âLâ : No more than 12.5m. Rear overhang 'R' : No more than 3.7m or no more than 60% of 'W', whichever is less. Distance load can project from front âPHâ : No more than 1.2m in front of headlights.