This report was one part of an overall account of a joint project undertaken by the Department of Maritime Archaeology at the WA Maritime Museum to inspect a number of wreck sites for an on-going corrosion study of iron and steel wrecks in Australian waters, including what was believed to be the World War II Japanese submarine I 124. There were a number of issues relating to the I 124 that went beyond the original aims of the project. These included: Was the protected submarine the I 124 and did it lie within the restricted zone? If not what was the identity of the submarine and what was its correct position in relation to the restricted zone? Did other submarines lie in the vicinity and if so what was their identity and position? Was the wreck an environmental hazard? Having answered or addressed these questions, what were the management options available? Accession No.3234. Dombrowski, J. H. et al. Development and fabrication of the Fibre Optic MicroCable, Technical Report 1620, October 1993, Advanced Concepts Branch, Code 556, Naval Command, Control and Ocean Surveillance Center, RDT&E Division, San Diego, CA 92152-5001. "It was recognized in the 1970s that a fibre-optic replacement for the metallic torpedo wire-guide (used to communicate with heavyweight torpedoes) would provide significant benefits in both the fields of undersea weapons and unmanned undersea vehicles. The small diameter and light weight of the optic fibre would permit a significant reduction in the volume and weight occupied by the deployable communications link when stowed, the freedom from electromagnetic radiation would provide channel properties that were independent of whether the link was deployed or coiled, the seawater ground and associated noise pickup and emission would be eliminated, and the bandwidth would be greatly increased compared with the wire. The improved physical properties of the fibre-optic unit would make it attractive to back-fit existing weapons, allowing more fuel and warhead to be carried. Additionally, the increased bandwidth of the optical fibre could be initially exploited to supplement the internal signal processing in the weapon with off-board processing and additional sensor information and, as reliability became accepted, off-board signal processing could eventually replace a significant amount of onboard electronics as well, resulting in a cheaper and smarter weapon since the shipboard processor could be made significantly more powerful than an onboard unit and was reusable."