DeepWater Buoyancy’s Benthic Lander allows for deployment of instruments to the seafloor to depths as great as 6000 meters. The design provides for a dual acoustic release system for release redundancy. It is highly-customizable and can accommodate a variety of instruments. The unit is designed to remain on the seafloor until the acoustic releases are activated.
Release activation causes the ballast pack to be dropped. The loss of weight from the dropping of the ballast leaves the unit positively buoyant and it ascends to the surface. The base frame is manufactured with 5000 series marine aluminum. The recovery buoy is made from high-strength DeepTec® solid syntactic foam that is rated to the application’s deployment depth and, unlike hollow glass balls, carries no risk of implosion.
The foam is finished with an abrasion-resistant, polyurethane elastomer coating. Additional framework is fabricated from 316 stainless steel and are electropolished for superior corrosion resistance. The unit is suited for both shallow and deep water applications but is not designed for trawl resistance. For applications in trawling areas, please see our Trawl-Resistant Bottom Mount.
These TRBMs may be deployed by free-fall, or by a diver or ROV. They have a double axis gimbal inside a buoyant recovery pod, and are designed to permit retrieval of all mounted instruments. An optional Spectra line pack can be provided for recovery of the base for turnaround deployments. Our TRBMs are available in depths of over 500 meters. We also offer disposable concrete bases.
Whether your bottom mount requirement is for a mid-frequency or high-frequency ADCP, we can accommodate you. These diver-serviceable units can be produced to accept your ADCP, battery, CTD, acoustic modem or other instrument. The popular BTM-AL50 is now offered in both welded and collapsible versions.
DeepWater Buoyancy prides itself on finding solutions for all our customers’ requirements. When a standard product does not fit the application, we analyze, design, develop, and produce the optimum solution. Click on the button to learn about our custom capabilities or contact us to discuss.