Oh dear, oh dear... I am so...
Them axes seem small but fast. Good close quarter chopping stuff if you have a shield in the other hand or for that matter a sword or dagger in the other.
But that light throwing machine is cool. I have used one of those but one of twice the size approximately, when I worked at Eketorp fort in 2007. The swedish term is Dragblida (Drawthrower) You have a synched team pulling the ropes that provide the power instead of a counterweight. Not as mighty as a trebuchet but lighter. I thing a term for these lighter throwers was Mangonel.
And I dig that Kettlehat.