Airborne assault vehicle    M551   "Sheridan"

            

           Airborne assault vehicle  XM551 - 1st generation.


            

           Airborne assault vehicle  XM551 - 2nd generation.


            

           Airborne assault vehicle  XM551 - 3rd generation.


            

           Airborne assault vehicle  XM551 - 4th generation.


            

           Airborne assault vehicle  XM551 - 5th generation.