Orbex is developing Prime, designed to place up to 180 kilograms into low Earth orbit, at a time when many other companies are abandoning the “microlauncher” market for larger launch vehicles. Chambers said that Orbex still plans to focus on that end of the market.
“Everybody else has moved on and we haven’t,” he said. “That’s a deliberate decision because then we have a niche for certain missions, payloads that were right-sized for that.”
Huh, so its even smaller than RocketLab's Electron. It will be interesting to see if Orbex can carve out a section of the market for themselves. It seems a bit unlikely, but either way, new rockets are always exciting!