A Project Called Azorian: Doing the Impossible
investments.Bottom photograph of manganese nodules in the central Pacific taken through a one-foot square wire grid during a seabed survey. Source: Authors photographThe Ship and the Capture VehicleThe surface ship was built by Global Marine and named the Hughes Glomar Explorer. She was designed by John Graham, Global’s chief naval architect, and later recognized as nothing short of an engineering marvel. The engineers did calculations on slide rules, plans were drafted using pencils, erasers, T-squares, triangles, and drafting paper to produce blueprints. Specifications were handwritten in cursive
Interview: Global Diving & Salvage CEO Devon Grennan
Devon Grennan was named CEO of Global Diving & Salvage in November 2013 after company founders Tim Beaver and John Graham stepped down from direct operational involvement. MTR caught up with Grennan for his insights on the business of Diving and Salvage. Your title is new, your tenure is not. How is your company the same as it was in 1995? We still focus on making sure that our customers receive the best service, regardless of the services they need. Between commercial diving, marine construction, casualty response and marine environmental services, we endeavor to
Grennan to Head Global Diving & Salvage
After more than 30 years as founders and owners of Global Diving & Salvage, Inc., Tim Beaver and John Graham continue to remain excited about the future of the company. This month, they announced the newest chapter in Global’s history; Devon Grennan, President for the past four years, will now also take on the position of Chief Executive Officer. Mr. Beaver and Mr. Graham will maintain ownership and continue to serve on the Board of Directors, but will step down from direct operational involvement. Grennan began his tenure in 1995 as a Marine Environmental Supervisor moving up the ranks
February 2026
