Hinged Counterweight (HCW)

Counterweight powered trebuchet where the counterweight is attached to the short arm through a hanger allowed to pivot at the attachment to the short arm (hanger axle).

Machines

• TreBarbaric

Power Source

Gravity

Advantages

• Easy to build
• More efficient than fixed counterweight (FCW) trebuchets
• Arm rocks back and forth less (Settles faster)
• Can use loose load cw material with an open top box

Disadvantages

• Less potential energy than super propped trebuchets
• Counterweight doesn't raise as high as an FCW (reduced potential energy)
• Increased shock load on axle during launch
• CW is more likely to twist into legs if suspended by chain, rope, or cable.

Pictures