The mangonel, also known as an onager, was the big gun for the Roman army. This web site has models, books, questions and answers, images, a message board, events, and links for even more information about these ancient weapons.
1/72, 1/76 and 1/87 Smallscale reviews and articles from Ancient, Medieval, Napoleonic, American Civil War, WW1, WW2 and Modern wargaming and modelling