Engineering Support of Underwater Operations

Phoenix’s Engineering Division is composed of marine/ocean, mechanical, and electrical engineers, along with experienced naval architects—all possessing deep knowledge of marine operations and decades of hands-on expertise. Our team delivers timely, practical engineering support across the full spectrum of maritime activities.

From operations planning and pier-side ship husbandry to complex offshore projects, Phoenix engineers develop real-world tooling and solutions tailored for divers, ROV operators, and clients with unique operational requirements. Our commitment to technical excellence ensures efficient, reliable results in even the most challenging marine environments.

Operations Planning

Attaching equipment such as an ROV launch system or underwater habitat to a vessel requires detailed engineering planning and multi-disciplinary analysis to ensure safety, stability, and operational efficiency.

Analyses that Phoenix Engineering performs include:

• Control and Telemetry Design
• Naval Architecture for the Ship Motions and Deck Load Analyses
• Power Design for Electric and Hydraulic Equipment
• Special Training Systems
• Stress Analysis of Lifts (Air and Subsea)
• Design and Documentation for Class Society Compliance
• Others, As Required by the Operation

Engineering Support for Underwater Ship Husbandry (UWSH) Repairs

For underwater ship husbandry (UWSH) repairs to be permanent and approved by class societies, both the repair itself and the procedure must undergo rigorous engineering analysis. Phoenix’s Engineering Division delivers practical, experience-based repair solutions—supported by high-quality drawings, specifications, and procedures that meet class society standards and facilitate approval.

Our ship repair support services include critical analysis, custom design, and detailed procedure development for a wide range of tasks, from damaged hull and appendage repairs to the deployment of manned habitats. Many of our engineers are also trained professional divers, enabling them to work directly alongside dive teams—offering real-time operational support both pier-side and underwater.

Engineering support includes:

Cofferdam/Manned Habitat Design

• Open Top Habitats
• Rudder Repairs
• Shaft Wraps
• Unique Application Cofferdams

Rigging Analysis/Rigging Plan

• Habitat Installation
• Propeller Changes
• Rudder Replacement
• Special Purpose Rigging Fixtures

Collision Assessment

• Dry Dock Planning
• Temporary Transit Repairs

 Underwater Ship Repair Procedures

• Diving Operation Plans (DOPs) for the U.S. Army Corps of Engineers
• Formal Work Packages (FWPs) for the U.S. Navy
• Process Control Work Packages (PCWPs) for the U.S. Navy
• Process Control Procedures (PCPs) for the U.S. Navy and Army Corps of Engineers
• Safe Work Plans (SWPs) for the U.S. Army Corps of Engineers

Special Diver Tooling and Equipment Design

Offshore Operations Support

The success and safety of offshore operations depends on engineering the equipment, rigging, deck layouts, power, and the whole system.  Phoenix engineers provide complete and comprehensive engineering solutions to meet client-specific requirements, while adhering to all applicable regulations and standards.

Transportation

• Planned Low Cost
• Rapid/Emergency
• Truck, Ships, and Planes – Commercial or Military

Mobilization

• Class Society Compliance
• Deck Layouts and Attachments
• Pier Side Lifts
• Ship Modifications
• VOOs Capability/Capacity

Salvage

• Deep Heavy Lifts
• ROV/Diver Rigging
• Sea State/Ship Response/Lift Design