klao003, For testing and improving purposes, could you share the shaped charge you're using? It's fine if you can't though.
shaped charges, especially with Mercury payloads penetrate it
Acespade1107, The primary purpose of frontal armour is to stop the projectile from entering the crew compartment, a feat accomplished if the round is halted. The secondary effect of heat or spalling causing a fire or damage elsewhere is a failure in the vehicle's overall protective design, but the armor plate itself performed its structural job. That said, I'll take your criticism and update the armour plate to avoid heat dumping into the fuel tank.
how is it armor if it catches on fire