JFD and US Navy unveil Shadow Nav
Above: Shadow Ops diver wearing the Shadow Nav.
Military combat divers frequently conduct underwater navigation missions in hazardous conditions with extremely poor visibility. Critical to the success of these missions is accurate underwater navigation, as well as staying within closed circuit oxygen rebreather depth limits to prevent oxygen toxicity, which can cause significant health risks to the diver. However, current handheld or tactical swim board mounted compasses, depth gauges, and chronometers are obsolete in a zero-visibility environment; an ongoing issue, which, to date has created serious limitations to military combat diving operations. The Shadow NAV represents a leap forward in capability for combat divers by ensuring they have continuous visibility of accurate information.
Above: Diver's view in the Shadow Nav.
The Shadow NAV is fitted to a diver’s standard half mask and provides a clear visual display of a combat diver’s compass heading, depth, and time even in near-zero visibility conditions. Through using a mask-mounted head-up display, combat divers are not restricted by the poor visibility mission environment and may not require carrying a tactical swim board.
Above: Shadow Nav Mask.
Danny Gray, Products & Support Director at JFD, commented: “The Combat Diver may have a significant amount of essential equipment to carry while conducting missions. Traditional kit such as the compass and depth gauges not only increases the amount of equipment required, but, more critically, they are of little, or no use in water with very limited visibility, even with auxiliary illumination. This puts the diver at too great a risk of injury or even fatality.
“To address these challenges for potentially dangerous underwater combat missions, the expert technical team S3D at the NSWC PCD worked to develop a small, low-cost, low-power enhanced navigation capability to significantly improve safety standards for military divers and give them the best possible chance of successfully completing their missions. In bringing this to market, JFD will be making this capability widely available to divers operating across the globe.”
The Shadow Nav (Combat diver navigation module) was recently awarded a 2018 Excellence in Technology Transfer Award by the Federal Laboratory Consortium (FLC) as part of its annual awards programme which recognises federal laboratories and their industry partners for outstanding technology transfer achievements. The Shadow Nav was selected from among more than 300 federal laboratories to receive the award.
JFD has a well-established history in the development of advanced and innovative systems which significantly improve diver safety. The company pioneers subsea innovation to deliver safer and more economic diving operations for its customers working in deep and often extreme environments. Through the partnership with the US Navy, JFD will bring the Shadow Nav technology to commercial fruition, ensuring the global diving industry, military and non-military, can conduct safe and efficient operations.
JFD is an underwater capability provider, serving the commercial and defence markets with innovative diving, submarine and hyperbaric rescue, technical solutions and services. Operating worldwide, the company is the world’s leading provider of submarine rescue capability and an established provider of submarine escape training.
The company is at the forefront of Hyperbaric Rescue, along with being the leading supplier of commercial diving equipment and saturation diving systems to the commercial industry. JFD was created in 2014 through the merger of James Fisher Defence and Divex. In 2015 JFD acquired the National Hyperbaric Centre to further boost the services offered to its customers. In 2016 LEXMAR was acquired to enhance the capability and offering within JFD’s diving capability and suite of saturation diving systems. JFD acquired diving and recompression specialist Cowan Manufacturing in February 2018.
James Fisher and Sons plc is a service provider in all sectors of the marine industry and a specialist supplier of engineering services to the nuclear industry in the UK and abroad. Operating worldwide and building on the experience and expertise gained over more than 165 years of operating in the marine environment, the company serves both the private and public sectors.
