Twin skeg hullforms

摘要

Vessel efficiency and fuel costs are becoming a key consideration for navies of the world. The design of modern naval replenishment tankers includes both twin screw and single-screw configurations. Whilst twin-screw offers redundancy advantages, many potential customers draw comparison with commercial tankers where the single-screw hullform is the most common arrangement. Lower purchase cost is often cited as the reason for favouring a single-screw design, however, there are also compelling arguments in favour of a twin skeg, twin-screw design.