So, for the first time ever, I am building tiny ships in significant numbers.
The Arceans have a new tech that produces a warp bubble that improves the speed of an entire fleet. You can have only one per ship and they do not stack with each other in fleets. They do, however, fit perfectly onto a tiny ship. So, take those early defender class/style ships with no engines and fleet them with one tiny ship (logistics 2) carrying a warp bubble and you now have an early decent fleet that can move OK (currently speed six in my game). Since the tiny has no weapons or defenses, it is the last ship targeted, meaning that, so long as the fleet survives, you will not loose your speed bonus...Which was a problem when I put them on actual warships. In addition, the attack component of your fleets have nothing but weapons on them, making them a more efficient build...