The T-70 X-wing was an improved version of the original T-65B. Incorporating more powerful engines and blaster cannons, as well as a new proton-torpedo launcher system, the T-70 was an upgrade in every way. The T-70 retained the same familiar shape as the earlier T-65, and as such it was quite easy for pilots to transition from one to the other. The T-70 saw frequent service with the New Galactic Republic and limited usage with the earlier Rebel Alliance.
The TIE/D Defender was an experimental TIE fighter, designed to counter many of the issues with the original models. While retaining the same cockpit and solar-foil design, the TIE/D incorporated a unique 3-sided shape, a shield generator, and a functioning hyperdrive. Considered to be a dangerous foe by Alliance pilots, the TIE/D was the most advanced fighter available to the Empire.