Speaking as a member of the Society for Creative Anacronism(SCA), a
society which fights in real armor with fake weapons, let me talk about
suits of armor.
Full suits of medieval armor exist and have been weighed. They ranged
from 40 pounds to 80 puonds. The 40 pound suits are highly ornamented
and are considered to be court, or dress, or show armor, i.e. not
intended for use on a battlefield. The middle range is considered to be
field, or campaign armor. The high end is considered to be tournament
armor, specifically designed to withstand a lance attack and to allow
control of a lance.
The society's research has not produced a single example of the need
for a crane to lift a knight into a saddle. Instead, it has found
reports of knights doing handstands in full armor. Since the SCA does
not go in for lance games, they specialise in the various field armors.
Such armor does slow one down but does not otherwise interfere with
mobility. Cranes appear to be an invention of Hollywood.
Pikes are generally considered to be overgrown spears whose primary purpose is
to keep horses away. Archers carried their own supply a short pointed
sticks that they hammered into the ground as an early barbed wire type
defense. These sticks are not pikes.
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