Full engineering support for the re-engining of the Cape LaHave

Cape LaHave Re-Engining Made Possible Through LiDAR Scanning

Expertise,
Industry,
Innovation

Allswater was contracted to provide full engineering support for the re-engining of the Cape LaHave, a 37-metre single-screw fishing vessel.

Overview

The project involved replacing the existing propulsion engine with a new CAT C280-6 that meets IMO Tier II emission standards. 

What made this upgrade possible—literally—was LiDAR. Rebuilding the existing engine seat required extreme precision, leaving virtually no margin for error. Without an accurate 3D understanding of the vessel’s structure, alignment, and clearances, installation would have been impossible. 

Using high-accuracy 3D LiDAR scanning, Allswater’s engineering team captured the vessel’s exact as-built geometry and modeled every interface to within millimetres. 

This 3D environment became the foundation for all design and installation decisions—from engine selection, determining access routes to ensuring the new engine fit seamlessly with the modified structure. 

Scope of Work

Allswater’s team delivered end-to-end engineering services, including: 

  • 3D LiDAR Scanning of the engine room and adjacent compartments to obtain accurate as-built data for integration into digital models. 
  • 3D Modelling and 2D Drawings of new structures, removals, access openings and piping systems, directly informed by LiDAR data. 
  • Heat-balance calculations to validate cooling performance with the new propulsion system. 
  • Pump and valve selection, pipework specifications, and updated system schematics. 
  • Removal and installation planning, including lifting routes and alignment procedures derived from digital models. 
  • Electrical wiring schedule for new remote-mounted alarm and control systems. 

All work was carried out in accordance with manufacturer guidelines and Transport Canada regulations. 

Highlights

  • Without LiDAR, the re-engining would not have been feasible—tight tolerances left no room for assumptions. 
  • The 3D scan enabled perfect integration of the new CAT C280-6 within existing hull and system geometry. 
  • New cooling and fuel systems were installed, optimized for both efficiency and compliance. 
  • Complete digital documentation—from concept layouts to fabrication drawings—reduced installation risk and minimized downtime. 

Results

The Cape LaHave project demonstrates how LiDAR scanning can revolutionize complex retrofits. By capturing the vessel’s precise geometry and structuring the entire engineering process around that data, Allswater removed uncertainty, streamlined design approvals, and achieved a perfect fit during installation.