How you design your trebuchet will decide the fate of the castle wall—and it may also decide your fate as well. With some choices, your missile might land too short or fly too far. With others ...

Have you ever sat down and thought “I wonder if a trebuchet could launch a projectile at supersonic speeds?” Neither have we. That’s what separates [David Eade] from the rest of us.

However, development continues apace in the enthusiast community, and [Tom Stanton]’s latest trebuchet design puts a different spin on launching projectiles at speed. The design takes advantage ...