The 81mm mortar shown by Skee clearly shows the white charge bags above the
fins. The round is a HE. There were 8 white bags and one yellow bag
underneath the white ones. At the bottom of the round was a shotgun-like
charge with a primer. The round slid down the tube and struck the firing pin
causing the charge to ignite the charge bags, propelling the round out of
the tube. The round was stabilized in flight by the fins because there was
no rifling in the bore of the 81mm. Charge 9, all bags left intact, would
propel the round for over a distance of 3 miles. Conversely with all of the
bags removed, charge 0, the round could be dropped virtually on top of you.
On the nose of the round was the fuse with safety pins. The fuse could be
set for delay or quick (the default) causing the round to explode on impact
or with a slight delay( used in canopy jungles ).
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