MINIATURE SUBMARINE FORMAL CLASS APPROVAL

ALL OUR PERSONAL SUBMERSIBLES ARE CLASSED BY THE AMERICAN BUREAU OF SHIPPING (ABS) OR DNV-GL

FORMAL CLASS APPROVAL

WHAT IS CLASSIFICATION APPROVAL

Each SEAmagine miniature submarine is approved and classed A1+ by either the American Bureau of Shipping (ABS) or by DNV-GL which are international non-governmental organizations that establish and maintain technical standards for the construction and operation of ships, submersibles, and offshore structures. These classification organizations verify and validate that the construction of each submarine is according to their standards by carrying out regular surveys during the fabrication and testing phase and by performing annual field surveys once the miniature submarine is in service.

The formal classification approval ensures that high industry safety standards are met by each individual miniature submarine and it also ensures that owners can procure adequate insurance from underwriters to cover the submarine after delivery.

ABS measuring submarine parts.

 

MINIATURE SUBMARINE CLASSIFICATION PROCESS

personal small submarines robotic arms holding a crab.

The classification approval process involves numerous steps by the classification society which is executed on each miniature submarine individually. First, the miniature submarine design with all its features and safety requirements are analyzed by the classification’s engineering department to concur that it meets all formal standards and approved requirements. Following this engineering design approval of the miniature submarine, ABS or DNV-GL surveyors will perform numerous inspections during the fabrication to witness adherence to the approved engineering drawings and also witness all formal material and pressure testing milestones. The submersibles are designed to withstand multiple times their maximum depth rating and are physically pressure tested to higher pressure values than their maximum operational depth. Upon completion, each miniature submarine undergoes numerous operational tests surveyed by classification society inspectors who verify that all normal systems and emergency systems function as designed. Finally, a formal test dive to the maximum depth rating of the vessel is performed on each miniature submarine with a classification surveyor. After inspection, surveys, and tests have been successfully completed, the classification society issues a Classification Certificate for that specific submarine.

 

MAINTAINING APPROVED CLASS STATUS AFTER DELIVERY

ABS surveyor performing survey on submersible.

A FORMAL PROCESS OF MAINTAINED ON EACH SUBMERSIBLE

Each miniature submarine is delivered to the clients with a Classification Certificate ensuring that each vessel was built and surveyed to the approved code. This Classification Certificate needs to be maintained active after delivery and each submarine must undergo a formal survey by an inspector from the classing society once a year.

The normal annual Classification Survey can be done on deck and typically involves assessing the vessel’s state and testing all emergency systems on the miniature submarine. A checkout dive is typically not required on a normal annual survey if the miniature submarine has performed at least one dive within the previous 12 months. SEAmagine typically coordinates its engineers to perform their annual preventive maintenance on the miniature submarine in coordination with formal Class Annual Survey period and the company then helps clients handle the annual survey process.

Every three years the Classing Society requires a Special Survey which is more in depth and reconfirms all systems, calibration, and also requires a test dive with the surveyor to the maximum depth rating. Again, SEAmagine’s technical support program helps the clients handle the special surveys.

 

 

ABS surveyor performing survey on submersible frame.

SUMMARY OF MAIN ASPECTS OF ABS CLASS APPROVAL

  • All submarine drawings undergo an ABS Engineering approval process.
  • ABS surveyors witness the fabrication process of each submarine and witness all key testing phases.
  • ABS surveyors perform final functional testing on all system for each miniature submarine individually.
  • ABS Surveyor perform a final test dive with each miniature submarine to it maximum depth rating.
  • ABS issues a final certificate of approval for each miniature submarine after successfully passing all requirements.
  • ABS surveyors need to perform an annual survey on each SEAmagine submersible each year after delivery in order for the sub to maintain class status.
  • ABS surveyors need to perform a special survey with a test dive to max depth on each SEAmagine miniature submarine every three years after delivery in order for the sub to maintain class status.