41. Each of these armatures required its own tooling. 42. The brushes run directly on the armature surface making the whole design very compact. 43. Instead, an armature was welded together from scrap iron and covered in fibreglass. 44. The underlying armature is steel covered in copper. 45. These are two principal methods by which the effect of armature reaction is overcome. 46. Delivery of the last locomotive was delayed until 1965 by failures of the armature . 47. When the current was closed, the armature held the diaphragm in magnetic suspension. 48. There are 8 unique steel armatures that rest on cobblestone formations surrounding the bowl. 49. The gyroscopic effect of the spinning armature also helped to keep it properly aligned. 50. An induction machine requires externally supplied armature current.
