Trebuchet

Fully functional medieval siege equipment with original mechanism that fires bricks at approximately 75 cm - 1 meter with adjustable range thanks to the lever on top that controls the moment of triggering the sling.
Proposed model consists of around 120 parts. Minifig scale.
Powerful addition to any medieval army (past, present or future LEGO castle themes) laying siege from land or sea.
Fun and educational.

VIDEO:

Inspired by: http://en.wikipedia.org/wiki/Trebuchet

For those interested, here is the link on physics behind this engine:
http://www.real-world-physics-problems.com/trebuchet-physics.html

Thanks for supporting! :)

Here on picture as a part of the siege on my MOC - AD 1202 Crusaders siege of Zara, inspired by the true historical event.

Original blueprint. Source: Wikipedia