Jacob Langdon

Gravity Marine provides vessel support, international marine survey logistics, specialized scientific instrumentation, environmental sampling equipment, metocean mooring and data buoy installations. Duties include running the deck, winches, cranes and tuggers. Vibrocoring, and grab-sampling for sediment and soil testing. Operating boats for sonar and surveying research. Welding, machining and fabricating modifications to all vessels to perform specific tasks under suboptimal circumstances. Gravity also assists in building prototypes for various types of marine instrumentation and equipment.

JF brennan specialized in marine construction, environmental remediation, dam construction, diving, harbor management, and submerged cable services. Created tools and equipment that improved project efficiency, maintained life support equipment.

Conducted underwater inspections for structural integrity and safety assessments. Assisted in the preparation and maintenance of diving gear and equipment. Executed underwater welding and cutting tasks for repair projects. Conducted underwater inspections of ships, docks and other structures to identify potential problems or hazards. Fabrication of specific tools and structures to streamline operations and to organize gear and equipment.