6500m HOV Project Stage 1 - A-4500 HOV Project Execution Plan

Sep 12, 2026

Upload by James

A Project Execution Plan for the 6500 m human-occupied vehicle upgrade, detailing Stage 1 activities for the A-4500 HOV. It outlines how WHOI will design, build, and manage the replacement of Alvin under a Cooperative Agreement with the National Science Foundation, including key enhancements such as a new personnel sphere, upgraded interior electronics, lighting, and camera/video systems. The plan defines mission and technical requirements, summarizes progress to date, and specifies vehicle design, construction, classification, and project management controls. It also provides transition planning toward operations, test plans, crew training, and cost estimates, while using referenced documents to keep governance current.

LanguageEnglish

CategoryPresentations

FormatPDF

Pages72

Reading Time25 min

AccessFree to download

Executive Summary

1.0 Introduction and Background to the 6500m HOV Project

2.0 Science Mission Requirements

3.0 Progress to Date

4.0 Vehicle Design and Construction

5.0 Project Management

6.0 Transition to Operations Plan

7.0 References and Supporting Documents

Appendix A

Appendix B

6500m HOV Project Stage 1: A-4500 HOV Project Execution Plan Document Control No.: 0000000 10-November-2009 Document Control Sheet | Date | Originator | Description | | --- | --- | --- | | 08-29-09 | S. Humphris | Initial Draft | | 09-05-09 | S. Humphris | Rev: Edits by C. German, D. Fornari | | 11-10-09 | S. Humphris | Edits by C. Van Dover | A-4500 HOV Project i Project Execution Pan Table of Contents Page Document Control Sheet i Table of Contents ii Executive Summary 1 1.0 Introduction and Background to the 6500m HOV Project 2 1.1 Community Activity Towards a New 6500m HOV 3 2.0 Science Mission Requirements 5 2.1 Unique Capabilities of Human-Occupied Vehicles 5 2.2 Future Science Missions 8 2.3 Capacity for Education, Outreach and Recruitment 15 2.4 Expected Science Capabilities of the 6500m HOV 15 2.5 Mapping Science Requirements to Technical Requirements 17 3.0 Progress to Date 19 3.1 NSF-WHOI Cooperative Agreement 19 3.2 Construction of the Personnel Sphere 20 3.3 Lessons from the Lockheed-Martin Contract 22 4.0 Vehicle Design and Construction 24 4.1 General Approach 24 4.1.1 Other Requirements 24 4.1.2 Systems Engineering 25 4.1.3 Analysis of Alternatives 26 4.2 Vehicle Design 36 4.3 A-4500 HOV Construction Plan 36 4.3.1 Pre-construction Procurement and Fabrication 37 4.3.2 Demobilization and Disassembly of Alvin 38 4.3.3 Refurbishment, Servicing and New Construction 38 4.3.4 Assembly of the A-4500 HOV 39 4.3.5 High Bay Testing and Remobilization 38 4.4 A-4500 HOV ABS Classification Plan 39 5.0 Project Management 41 5.1 Organizational Structure 41 5.2 Internal Advisory Structure 43 5.3 Community Advisory Structure 43 5.4 Work Breakdown Structure 44 5.5 Project Monitoring and Control 45 5.6 Configuration Management and Change Control 47 5.7 Quality Assurance and Quality Control 47 5.8 Procurement Plan 48 5.9 Risk Management 49 5.10 Scope Management 51 5.11 Environmental Health and Safety 51 6.0 Transition to Operations Plan 52 6.1 Vehicle Test Plan 53 6.2 Operational Crew Training 54 6.3 Rescue Vehicle Test Plan 54 6.4 Science Test Plan 55 6.5 Estimate of Operational Costs 56 7.0 References and Supporting Documents 57 Appendix A. NDSF Available Scientific Equipment and Current and Future User-Provided Equipment 59 Appendix B. Science Traceability Matrix 63 Executive Summary Woods Hole Oceanographic Institution (WHOI) will design and build a replacement for the current Human Occupied Vehicle (HOV) Alvin under a Cooperative Agreement with the National Science Foundation. WHOI expertise, in conjunction with expertise acquired from other engineering and management groups inside and outside the Institution, will be used to execute this Project. WHOI will design and build an HOV with a 6500 m depth capability in two stages to be consistent with available technology and funding. During Stage 1 (hereafter referred to as the A-4500 HOV Project), the 4500 m-rated DSV Alvin will be significantly enhanced anda new, larger personnel sphere currently under construction will be installed. This new sphere will allow for larger fields of view for scientists, including complete overlap with the pilot ’s view of the deep ocean and seafloor, thereby immediately providing a significant improvement over the existing Alvin’s capabilities. In addition, the A-4500 HOV will have new interior electronics, improved lighting, and advanced camera and video systems. The new command and control system will increase efficiency and productivity of vehicle operations. In Stage 2 (hereafter referred to as the A-6500 HOV Project) , as additional funding becomes available and lithium ion battery technology matures and is proven for safe use in human-occupied vehicles, the changes necessary to increase working time and extend the depth rating of the submarine to 6500 m would be accomplished. The 6500 m HOV will be designed and constructed to

FAQs

What is the purpose of the Project Execution Plan for the 6500 m HOV program?

It describes how WHOI will manage the project during Stage 1 (A-4500 HOV) and provides order-of-magnitude estimates to reach Stage 2 (A-6500 HOV).

What are the main Stage 1 enhancements for the A-4500 HOV?

Stage 1 focuses on significantly enhancing the 4500 m-rated Alvin and installing a new, larger personnel sphere, along with updated interior electronics, improved lighting, and advanced camera and video systems plus a new command and control system.

Why is the Preliminary Design Review being held after construction has begun?

The plan states the program is somewhat unusual because the Preliminary Design Review occurs after construction has started.

Sep 12, 2026

Upload by James