I got a particularly good 5A FSD roll, so I can squeeze 60.32LY out if I strip it down to a tin can in space:
https://eddp.co/u/G2RqdMXj
I never use this configuration though, since it isn't very useful. It could possibly be useful for Buckyball runs (racing from the bubble to Colonia), but exploration is not possible with this setup (my primary time sink in elite dangerous

).
So when I first got this great FSD roll, I had a design goal in mind: Build the most well equipped explorer I could that would still jump 50LY+ and this is it's form today:
https://eddp.co/u/wKPFLGH1
It's reasonably fast (Boost speed: 459 m/s), pretty robust (354MJ of shields, 950 ship integrity) and decently armed (2xPlasma Accelerators, 2xRail guns, 2xPulse lasers), all while being able to jump a maximum of 53.76LY.
It's worth a mention that I believe maximum jump range is very important when considering all aspects of exploration. As mentioned by Major Klutz, there are a few places that can't be reached if you don't have the jump distance to get there. In fact, I recently learned that to reach the highest point of the galaxy, I need not only 55LY+ jumping range (within my Diamondback Explorer's 60.93LY maximum), but enough fuel as well; which isn't possible with my current 16T fuel tank (Allitnil's record:
https://forums.frontier.co.uk/showt...n-the-Galaxy?p=5549395&viewfull=1#post5549395).
So my AspX is the exploration ship I would love to take out for longer excursions to enjoy exploration in comfort; while the DBX is the ship I want to use when trying to find new places at the limits of the galaxy.