I search informations about medieval composite bows (for crossbow) : compositions, dimension (length, deepth of different materials...), draw strengh and other interesting/historical things.
I'm making test for a personal crossbow (60cm long) and I'm always at very high strength and finally break at final draw length because of it.
what I see on old crossbows pictures (XV-XVI th century) looks like 3-4 cm deepth and seems very strong. things I read about this always speak about composite bows, but with that strength, I wonder if that's not several laminations not glued together.