The fastest rocket that can be created is a an antimatter rocket in most
cases.
If you wish a better performance then is provided by non relatavistic
fusion rockets,
this is best done with a type of antimatter rocket called a pion rocket.
This pion rocket mixs protons, and antiprotons in equal quantitys, and
annhilates them creating pi
mesons which are expelled through a magnetic nozzle at .94 of light
speed. I have designs for pion rockets. I also have designs for nuclear
electric rockets which generate
a beam of relatavistic protons or ions with particle accelerators, and
expell it to propell themselves.
Timothy j mayes
These proton rockets may have exchaust velocitys of 90 percent of light
speed or more.
Timothy J. Mayes