Elephant swords

[ariel]

Originally Posted by fernando

A bit too heavy, though ... despite Fermi's formula. No hollow parts ?

Well, no real sword is an ideal rectangle. It might have been curved and narrowing toward the tip, might have had fullers, the “thickness” likely reflects the back and could have had narrowed down toward the edge etc.
You are correct: 17 kg might be an idealized maximum, that’s why I put a range 15-20 kg.