SIZED TO THE LINE. THREE WAYS THROUGH IT.

The body is cylindrical and sized to pipeline and conduit classes, riding on sealing discs that center it in the bore and take the wear. Everything else — the propulsion, the payload, the comms plan — is a mission selection made before launch, not a fixed configuration bolted in at the factory.

Propulsion is selectable per mission across three modes: flow-driven, where the sealing discs take the pressure differential of a live product flow and ride it like any conventional pigging run; self-propelled, wheels or tracks under its own power for dry or non-flowing conduits where there's no flow to ride; or tethered, a controlled pull for inspection runs that need a fixed speed and a hard stop on command. One hull, three ways to move — chosen for the line, not designed around a single one.

A modular payload bay sits amidships, sized for inspection sensors as the baseline case — corrosion and wall-thickness gauging, geometry and deformation mapping, run odometry — or other carried non-kinetic payloads on the same interface. Comms follow the family rule absolutely: fibre-tethered for real-time control where a tether is fitted, or fully untethered with position and sensor data logged onboard and offloaded at the receiver or exit point. No radio, ever — pipe, culvert and conduit are RF-dead environments by nature, metal-walled, buried and confined, and the design was never going to fight that physics.