Street-Fighting Physics! - Professor Kevin Kimball, BS, U.S.N.- retired
TREBUCHET !
 
 
 
 
pulling the
winch cable
 
 
setting the
winch cable
 
 
 
 
 
 
 
winding up . .                                                 . . . and winding up . . .
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
. . .  and winding up!
 
"Is it beer-thirty yet?"
 
 
clearing the shroud lines on the sling (very important!)
 
 
 
setting the
firing pin . . . 
 
 
 
. . . fully cocked!  
 
 
 
 
 
 
 
 
 
 
 
loading the
projectile. . .
 
 
 
 
 
 
 
 . . . locked and loaded!
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
"FIRE IN THE HOLE!"
 
      PULL!                                                                        . . . beginning launch . . .
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
.. . and . . .
 
 
 
 
 
. . . IN FLIGHT !
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
my very special thanks to Jillian Olivares-Wiels
for these wonderful images!
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