Robert Allan Ltd. has a long and successful history of barge design which dates back to the earliest years of the company.
Tugs and barges are the primary means of transportation on the coast of British Columbia for almost all general and bulk cargoes. The company has grown up with this industry, meeting the challenges of designing tug-barge transportation systems to handle all manner of cargoes with various means of loading and unloading, and for all kinds of routes, from very shallow rivers to open ocean. In the 1960’s, the company was amongst the first in the world to develop barge designs for long distance ocean towing and some of the first ocean-towed, multi-barge “drop and swap” type cargo systems. The company records include designs for a vast array of barges, each designed for a specific transportation need.
Some barges are just simple work platforms, but many are transporters of valuable cargoes, optimized to maximize transport efficiency and profitability for the owners. Robert Allan Ltd. has always been at the leading edge of design technology for barges and has performed extensive model testing to minimize resistance and verify towed directional stability. The company has an extensive library of performance data on which to base the most efficient barge hull forms and skeg designs.
Today advanced CFD techniques are applied to prove and evaluate the resistance and directional stability of all new barge designs.
As a consequence of the use of these powerful new design tools, Robert Allan Ltd. has developed a new standard series of deck cargo barges, designated as the RAfter series, with numeric designations correlating to the barge dead weight capacity. These are rugged, high-capacity barges designed with uniform deck load strength of 10, 15 or 20 T/m2. The standard barges in this series have a cargo box of 2.0 metre height, but the box configuration can be easily adapted to any specific cargo type. RAfter series barges are available as follows, but any intermediate size can easily be developed:
- RAfter 1500
- RAfter 2500
- RAfter 5000
- RAfter 7500
- RAfter 10000
- RAfter 12500
- RAfter 15000
- RAfter 20000
In addition to this new standard deck cargo barge series, our design portfolio contains many hundreds of barge designs, too numerous to describe in detail. Commodities carried on these barges include general and Ro-Ro deck cargo, bulk cargoes (sand, gravel, rock, etc.), logs, lumber, wood chips, paper products, pulp, bulk cement, clinker, limestone, oil, chemicals, containers and much more.
The following illustrate but a very few of the diverse array of barge types designed by Robert Allan Ltd.: