Have you had a look at Project Daedalus ? https://en.wikipedia.org/wiki/Project_Daedalus https://en.wikipedia.org/wiki/Project_Daedalus Or Project Orion : ht

Have you had a look at Project Daedalus ? https://en.wikipedia.org/wiki/Project_Daedalus https://en.wikipedia.org/wiki/Project_Daedalus Or Project Orion : https://en.wikipedia.org/wiki/Project_Orion_(nuclear_propulsion) https://en.wikipedia.org/wiki/Project_Orion_(nuclear_propuls... and the excellent book on Project Orion https://www.amazon.com/Project-Orion-Story-Atomic-Spaceship/dp/0805059857 https://www.amazon.com/Project-Orion-Story-Atomic-Spaceship/...