Robert Allan Ltd. - Naval Architects and Marine Engineers

The RAmparts Class tugs are a series of well-proven ASD tug designs which have been developed into relatively standardized configurations. Each design has been developed from a successful prototype vessel or series of vessels, and refined to emphasize ease of construction without sacrificing performance. The primary target market for these designs are shipyards looking for proven, high-performance tug designs to offer to Clients in response to direct enquiries, although many RAmparts designs have been offered directly to our tug operator Clients as well. The RAmparts designs are all available in fully developed steel part "kits", using ShipConstructor 3D modelling software.

The vessels are identified by length; e.g. RAmparts 3000, and there is a range of powers which can be accommodated within each. Each design is available in a typical ship-handling configuration, with a modest size of skeg, or in an "escort" configuration with a much deeper skeg for enhanced indirect steering force capability. Clients seeking superior escort performance however are recommended to select the RAstar Class. All RAmparts designs are available in metric dimensions, and some are also available in Imperial dimensions.

The following RAmparts Class designs are currently available in fully developed design packages: