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Salt Deposition On F-5 Aircraft In Various Service Environments

Picture for Salt Deposition On F-5 Aircraft In Various Service Environments
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Fighter Squadron Composite One One One (VFC-111) is a US Navy adversary squadron based out of
Naval Air Station (NAS) Key West, Florida. VFC-111 operates F-5 Tiger-II tactical fighter jets as part of their dissimilar air combat training program provided to fighter squadrons within the Navy, Marine Corps, Air Force, Air Force Reserve, and Air National Guard.

Product Number: 51322-17799-SG
Author: Christine Sanders, Christina Stewart
Publication Date: 2022
Industries: Cathodic Protection , Corrosion Monitoring and Control , Coatings and Linings , Coatings
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Conductivity testing, via Bresle patch analysis, was performed on F-5 aircraft in Key West, FL, Fallon, NV, and Yuma, AZ to compare the level of salt contamination present at each location. The inspection locations were selected based on the observations of the pilots and maintenance staff of VFC-111, the squadron stationed in Key West, FL. The selected locations represented the areas of highest concern and recurring problem areas noticed by maintenance staff. Testing was performed at several points during the flight schedule: before the first flight of the day, following a flight, and prior to and following a scheduled clear water rinse event. The results obtained from Key West, FL and Fallon, NV indicate a large discrepancy in the amount of salt contamination present in the two locations, with Key West yielding much higher readings. These results lead the researchers to believe that the aircraft in residency in Key West should be treated in similar fashion to those maintained aboard aircraft carriers, including more frequent wash and inspection cycles, and potentially proper marinization of the aircraft with marine specific coatings. 

Conductivity testing, via Bresle patch analysis, was performed on F-5 aircraft in Key West, FL, Fallon, NV, and Yuma, AZ to compare the level of salt contamination present at each location. The inspection locations were selected based on the observations of the pilots and maintenance staff of VFC-111, the squadron stationed in Key West, FL. The selected locations represented the areas of highest concern and recurring problem areas noticed by maintenance staff. Testing was performed at several points during the flight schedule: before the first flight of the day, following a flight, and prior to and following a scheduled clear water rinse event. The results obtained from Key West, FL and Fallon, NV indicate a large discrepancy in the amount of salt contamination present in the two locations, with Key West yielding much higher readings. These results lead the researchers to believe that the aircraft in residency in Key West should be treated in similar fashion to those maintained aboard aircraft carriers, including more frequent wash and inspection cycles, and potentially proper marinization of the aircraft with marine specific coatings. 

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