02 // The Concept
A new grammar for orbital logistics
Traditional Starship refueling relies on sequential pairwise docking: one tanker meets one mission vehicle, transfers propellant, and departs. It works. It is elegant in its simplicity. It is also limited by time, by single-point transfers, and by the need to wait.
Before // Linear
Sequential pairwise docking
One tanker. One mission vehicle. One transfer at a time. Each meeting is temporary, each hand-off waits for the last, and the tempo of an entire campaign is set by the slowest single rendezvous.
After // Radial
Parallel, continuous architecture
At the center sits a compact, lightweight manifold hub. It contains precision cryogenic valves, short insulated transfer lines, sensors, and modest buffer volume for chill-down and settling. It does not attempt to store hundreds of tons of propellant for months. That role belongs to the Starships themselves.
Port Allocation
Five docking ports radiate outward
One port is preferentially occupied by a fully loaded Starship that acts as an immediate reserve. The remaining four ports handle active traffic.
CAP-01
Transfer propellant from multiple tankers into a mission vehicle simultaneously
CAP-02
Maintain a permanent ready reserve in orbit
CAP-03
Cycle empty vehicles back to Earth in a continuous loop
CAP-04
Scale simply by adding more tankers to the rotation
The same petal geometry that defines the broader Oakheart design language is here applied strictly to propellant logistics. The architecture is modular, the roles are cleanly separated, and the vehicles remain the primary storage vessels.
This is not a depot in the classical sense.
It is a living transfer node.