In another thread Staffan Rønn writes something about 111 history. Is there a schematic ca year span of the different models, and some sub versons. This is what i beleive, im probably wrong 111 roarer, 1952-1975? ??? 111B 111/7 1959-1980? 111T without the vent holes in the center pipe (or was this a 111/7???) 111T with the vent holes in the center pipe ???? 111C 1995???-2010??? 111C with bent tube for Norwegian army (111D is it named in this forum) 1995???-2010??? Wich ones was made at the same time?