COB-exact: timeline 1:1 from corsonar.cob (go/stop (spin-freeze family), disassembled with _cob_dis.py). StateChg staged-deploy family: 1 open stages, then the compiled close order — not a reversed activate. Fire/hit/death/smoke scripts are engine-driven or firing-only and not part of this loop.
Animation

PNG frames

Frame 0 / 870.00 s
COB timeline (CORSONAR.COB)
- 0.00–0.40 s — Rest pose (3DO zero point)
- 0.40–0.40 s — Go: rotors spin up at the COB rates (BAM/s, 65536 = 360°)
- 0.40–4.40 s — steady spin
- 4.40–6.40 s — Stop: every rotor freezes at its nearest whole turn (preview calibration ≤ half a turn; the engine freezes at an arbitrary angle and never realigns)
- 6.40–7.00 s — rest again — loop restarts seam-clean (frame N = frame 0, pixel-verified)
Every stage duration equals its COB sleep exactly; values are raw COB units (turns: BAM 65536 = 360°, moves: elmo × 163840). Renderer conversions follow the proven family conventions (_cob_anim.py).