Now to look at Medieval Seige Engines ... Trebuchet.
A huge team of engineers using medieval methodology was gathered together and against the backdrop of Loch Ness in Scotland they carried out a test firing having constructed two mighty seige weapons ... Trebuchet... against a 5 feet thick stone wall built for the experiment about 250 yards down range....using 250 pounder stone balls... would it work?
See
https://www.youtube.com/watch?v=N0wnOO4U-yg and watch what happened.
Regards,
Ibrahiim al Balooshi.