I had always been successful in building drones that were high speed and lethal, much less survivable and resilient. But this time...
Thanks to chassis cubes, reintroduced July 2017, I could build Death Star! Most of internal structure is chassis cubes, and no rods.
To develop it, I started from a cube structure, adding thrusters to the 8 corners pointing in the 3 spatial directions, XYZ. This guarantees to start from a well balanced basis. And you have 24 of the Leopards.
Helium cubes are at the center, as far away as possible from fire.
Then I added main thrusters inside the base cube frame, in a rhombus shape when looking from the front, 8 of the Cheetahs.
Then I beefed it up, adding more chassis. You'll notice main chassis cubes are silver, and armoring chassis cubes are blue.
Then I added around the Devastators, arranged in a hexagon when looking from the front (hence the "Star" in Death Star).
Before 2017-07-27 Aerofoils Update: It's fast and maneuvrable. 300 to 320 mph top speed horizontal. Climbs at 280 mph. And peaks at a whopping 450 mph when diving. Fought several death matches, ending up mostly as top scorer and surviving many, many hits, even from flaks and guardians. Just when you start feeling the hits run for cover, the 450 mph dive speed helps.
After 2017-07-27 Aerofoils Update: It's fast but maneuverability limited by the horizontal stabilization algorithm. Top speed is around 290 mph, no big difference between climb and dive. Using SPACE you can do a vertical climb, until stabilization gets in the way. It tends to be the top scorer, you can attempt at dogfight. Consider replacing plasma with SMG for aerial combats.
You can buy it at the Factory.