Shield envelope and material count
R01 describes a 300 m axial bow with a 120 m base diameter, while integration notes discuss a 120 m shield thickness and a much wider vessel envelope. Five graded material layers and six protective functions are described without one authoritative stack.
A nominal scale in concept art cannot be used for structural fit, mass, or heat-flux design.
Establish coordinate datum, outer dimensions, layer schema, and signed general-arrangement drawing.
Source track: R01 and integration notes