<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div><span></span></div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><span style="background-color: rgba(255, 255, 255, 0);">What if, hypothetically, one were to put explosives under something shaped like a paraboloid?would it launch it in any appreciable way? Small scale Project Orion?<br><br>Well...... if you remember, my statement specifically stated, a projectile in an enclosed tube/cylinder/barrel. A paraboloid is not a tube nor is it enclosed. <br></span><br><div><span style="font-size: 13pt;">Michael Powers</span><div>USMC '65-'69<br><div>ETCP Rigger #820 (Ret'd)<br><div><br></div></div></div></div></div></body></html>