The multiple-layer field-complex is a multi-purpose field enclosure that surrounds a spacecraft.[1]

Field-complexes could be extended to encompass a volume well beyond normal[2] to encompass and carry other objects, although this negatively affected operating efficiency.[3]

A 21st century CE Culture field enclosure included (from innermost layer to outermost) a bumpfield, insulating, sensory, signaling and receptor, energy and traction, hullfield, outer sensory, horizon field.[4]


  1. Hydrogen Sonata, chapter 20
  2. Hydrogen Sonata, chapter 22
  3. Surface Detail, chapter 23
  4. The Player of Games, chapter 2

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