Trebuchet
From Warhammer 40k - Lexicanum
The Trebuchet is a large catapult-style weapon powered by counterweights.[1]
They were used by the Iron Warriors during the Siege of Terra. They fired either ouslite, tungsten, chemical, or incendiary ordnance or simply recycled masonry from the palace itself. The weapon impacted with huge kinetic force.[1]
Sources
- 1: Saturnine (Novel), Part 1, Chapter 3