Abstract: An inspection instrument is fabricated with segments of limited controllable flexure disposed between an objective segment and a control head. The segments are provided with interior frame members to maintain a generally rigid configuration, the variation in flexure providing a stair-climbing-like capability which is advantageous for clearing obstructions in the area being examined. Articulation in two dimensions is provided within each of the segments. Control lines thread through the instrument to contact frame members at distal ends of each of the segments to effect independent pivoting among the segments. The proximal ends of the control lines connect with manipulative members in the control head for manual control of the articulation.