Abstract

The ARKTOS Evacuation Craft has been the primary means of emergency evacuation on Arctic and Caspian Sea bottom founded oil exploration and production facilities for over 20 years.

Oil production strategies are currently being developed by major oil companies for operations within and beyond the Arctic Shear Zones, where the mobile polar pack ice and the static land-fast ice meet.

A major area of concern for any development within and beyond the Shear Zones is Escape, Evacuation, and Rescue (EER) capability, due to the extreme ice and sea conditions that will be encountered. In response to a major oil company initiative, a conceptual design for a 75 person self-righting ARKTOS Amphibious Evacuation Craft suitable for operation in this region has been developed.

As part of the ongoing design process, an extensive series of self-righting model tests have been carried out to confirm the Shear Zone Craft will be capable of self-righting in all combinations of pitch and yaw, both fixed and free, which the dual unit craft is capable of attaining.

Four load cases covering the range from maximum displacement to maximum vertical center of gravity (VCG) were evaluated with 36 combinations of pitch and yaw for each load case, resulting in 144 individual tests.

This paper describes the model test procedures and results of the model test program. It also includes recommended minor design enhancements to ensure the Shear Zone Craft will be self-righting in all load cases.

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