Title: Approaches to Corrosion Control on the USMC Riverine Assault Craft
Authors: William Steiner and Norm Clayton
Citation: Tri-Service Corrosion Conference, 1997
Keywords: Riverine Assault Craft, Galvanic Corrosion, Coatings and Materials
Abstract: The Riverine Assault Craft (RAC) is a 35 ft long aluminum craft that is operated
by the United States Marine Corps (USMC). In their three years of operation, a
number of significant corrosion related problems have developed has a result of
poor designs or material choices. These included: poor reliability of the original
engine starters and solenoids, a raw water cooling system (RWCS) that used plain
steel sensor fittings in stainless steel piping, use of plated steel electrical system
components and potential future hull corrosion in the bilges due to water traps and
the use of intermittently welded stiffeners. While the Naval Ordnance Center,
Fallbrook Detachment has been asked to develop Engineering Change Proposals
(ECPs) to address various electrical system and RWCS deficiencies; NSWCCD
has been tasked to look at overall life cycle corrosion control improvements.
Work completed or ongoing includes alternate material recommendations,
revising the technical manual and training materials, and development of a
corrosion control course for maintenance personnel.
Pros/Cons: The Riverine Assault Craft (RAC) is a necessary, high visibility USMC asset used
in drug interdiction process. This paper highlights the various corrosion problems
associated with this RAC. The RAC’s problems were surveyed and necessary
procedures were implemented and it is found to perform successfully upon up-
gradation to fulfill its work.