Approach to Nav Aids System on Islands

Offshore business is gradually moving from traditional Well Head Platforms to the concept of Artificial Drill Islands and use of renewable energy sources. Navigational Aids design for artificial drilling islands has unique challenges due to vast periphery. This paper highlights all such challenges along with recommendations for a reliable and cost effective solution. Clients as well as FEED/EPC Contractors can benefit from the experience shared in this paper. The trend over the last decade has been to develop Navigation Aids that minimize maintenance requirements whilst maintaining stable and satisfactory performance. Although, Navigation Aids are automated there is still a need for regular visual inspections as there is always the risk of vandalism, ship impact or damage during significant storm events. Navigational Aids System shall be in strict compliance with International Association of Lighthouse Authorities (IALA) Guidelines. In addition to usual Visual & Audible Navigations Aids, artificial islands require break water lanterns (both red & green type). Also, number of Navigational Aids is much more than those required for a typical offshore platform. Requirement of interfaces with remote ends need to be clearly defined as these have impact on the design and ultimate cost. GSM monitoring and control system, GPS synchronization & AIS remote monitoring shall be considered. Cabling over the Island periphery is neither reliable nor cost effective solution. Standalone solar power based Navigational Aids Skids with all control and monitoring facilities can be more suitable solution. Considering that Island Contractor provides few Navigational Aids before the mobilization of EPC Contractor, it is essential to coordinate the Navigational Aids design aspects to ensure synergy in terms of compatibility.

Pilot-administered anaesthesia and the Royal Flying Doctor Service of Australia: An interview with Captain Keith Galloway

The lack of radio navigational aids in early Royal Flying Doctor Service aircraft in Australia occasionally resulted in aircraft being stranded at a remote site with a critically injured patient due to weather and other conditions. For a brief period in the 1950s, at least one Royal Flying Doctor Service pilot was trained to administer anaesthesia to critically ill patients who could not be immediately evacuated. The aim of this paper is to describe the circumstances in which this arose and how it worked in practice. This is based largely on the recollections of pilot anaesthetist Captain Keith Galloway, who shared his recollections during interviews with the authors.

Alarm on Clearance Executive Monitor Instrument Landing System (ILS) Glide Path 36 PERUM LPPNPI Manado Branch Office

ILS equipment is one of the landing navigational aids using radio waves as an instrument (non-visual) which is used by pilots in carrying out aircraft approach and landing procedures at an airport. The problem is the Instrument Landing System (ILS) on the Glide Path (GP) equipment on Runway 36. Glide Path has a monitor that functions to monitor the signal to be emitted by the antenna, the signal to be monitored is processed by the detector module, there are 3 detectors including COURSE CSB detector, COURSE SBO detector, and CLEARANCE detector. The signal coming from the antenna will be detected (sampled) by each detector and then forwarded to the monitor module for processing and the results are displayed on the PMDT (Portable Maintenance Data Terminal) monitor. When the value of the monitor reading exceeds the limit of the tolerance value that has been set, a pre-alarm / alarm will occur. The results obtained that the Clearance detector module on the panel box monitoring combining network connected to the monitor reading was damaged, so replacing the detector module and resetting the selectors on the panel box as well as calibrating and normalizing are the problem-solving steps.