[Code of Federal Regulations] [Title 46, Volume 4] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR113.40-10] [Page 272] TITLE 46_SHIPPING (This book contains parts 90 to 139) CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 113_COMMUNICATION AND ALARM SYSTEMS AND EQUIPMENT--Table of Contents Subpart 113.40_Rudder Angle Indicator Systems Sec. 113.40-10 Detailed requirements. (a) Each rudder angle indicator system must have a transmitter at the rudder head that is actuated by movement of the rudder with the angular movements of the rudder transmitted to a remote indicator or indicators. This system must be independent of all other systems and not receive power or signal from the steering gear control, autopilot, or dynamic positioning systems. However, the indicator may be physically located on a control console, such as an integrated bridge system, if it is readily visible by the helmsman at the steering stand. (b) Each electric component or its enclosure must meet NEMA 250 Type 4 or 4X or IEC IP 56 requirements. [CGD 74-125A, 47 FR 15272, Apr. 8, 1982, as amended by CGD 94-108, 61 FR 28290, June 4, 1996; 62 FR 23910, May 1, 1997]