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SonarBell® is a new technology and as such could be applied to many areas not considered in any detail on this website. Below we provide illustrations of a few areas currently being considered for the future application of SonarBell®.

If you can think of any others and would like our help then please examine our STEPS programme.

Although all commercial and many military aircraft are fitted with transponders to help locate the flight recorders post crash, the battery life of these devices is short and failure to detect the wreckage within the life span of the batteries means chances of subsequent detection are very small.

The long design life of the SonarBell® means that this time restraint is removed. Fitting the SonarBell® to the major aircraft structures would increase detection chances substantially.

Each year up to 10,000 shipping containers are lost at sea. Many of these float for some time before sinking some way from where they were lost, presenting a threat to shipping and the environment.

Both the International Chamber of Shipping and the World Shipping Council are investigating the marking of containers.

SonarBell® provides a maintenance free marking option that does not require specialist sonar systems for detection but works with a wide range of existing navigational and search sonars.


Whether it is indirect positioning to mark valuable seismic measuring instruments for recovery or direct positioning to measure seafloor spreading, subduction or seismic movements, SonarBell® offers a cost effective solution to long term deployment options.

Due to the complexities of underwater archaeology, excavations can take place over many months or even years. Accurate seafloor plotting can be carried out using the SonarBell® without the worry of transponder battery failure. The SonarBell® can be left on site with no maintenance requirements.

SonarBell® is also being considered as a dive marker to be placed near to historic wrecks to provide divers with a safe place to drop dive lines in the knowledge that damage to the wreck will be minimised.


Following the two world wars, there are a large number of wrecks around the world that have been designated as war graves. Some of these sites can be difficult to locate wasting valuable dive days.

Marking the site with the SonarBell® would allow for rapid location of the site and allow other sea users to avoid the area.