Defense

February 20, 2013

NACRA Testbed executes corrosion sensor technology project

A UH-1N helicopter, testbed for the Naval Aviation Center for Rotorcraft Advancement, flies a mission near the Chesapeake Bay to test and demonstrate integrated corrosion sensing technology. Early detection of metal-killing corrosion could cut total ownership costs for all Department of Defense rotorcraft in the near future.

Naval Aviation Center for Rotorcraft Advancement Technology Demonstration and Development teams have joined industry partner Luna Innovations, Inc., to test and demonstrate integrated corrosion sensing technology.

ìWe estimate 90 percent of an aircraftís total ownership cost occurs after delivery, said Ashley Morgan, NACRAís technology project coordinator. ìMore than 30 percent of that is due to corrosion and those costs escalate as the aircraft ages.

But more importantly, Morgan asserted, the issue is safety.

îCorrosion can alter residual strength and structural integrity,î Morgan said.

ìIf you can put sensors in the aircraft structure for early detection and take appropriate corrosion mitigation actions, you can decrease overall downtime and expense, not to mention add a higher degree of safety,î said NACRAís resident materials expert Dr. Suresh Verma.

Enter NACRAís corrosion sensor project that extends development efforts initiated through the Navyís Small Business Innovation Research Program.

We installed a combined wired and wireless corrosion monitoring system provided by Luna with installation design provided by Wyle on our UH-1N testbed helicopter in July 2012 and have been flying it as a ëride-alongí with our other project work,î Morgan said. ìWith this technology installed, we can track environmental exposure and specific conditions at corrosion hot-spots as a function of time, using inputs from various environmental and corrosivity sensors.

Specifically, the project measures air and surface temperatures, relative humidity, solution resistance and polarization resistance to predict aluminum corrosive activity.

Morgan said the aircraft sensors gathered and stored this environmental data that test engineers sent to Luna for analysis.

ìData from the wired sensors and the wireless sensor hub were used to classify corrosivity within the airframe and the environmental measurements were strongly correlated to National Oceanic and Atmospheric Administration weather station data,î said Lunaís Dr. Fritz Friedersdorf, director of intelligence systems.

This project and the resulting data contributed to the Air Force ordering a total of 20 of these systems for demonstration on Air Force H-60s, Friedersdorf said. ìThe first set will be installed the week of Feb. 18, 2013. This would not have been possible without the Navyís support and the availability of the NACRA test bed aircraft.

The project is scheduled to fly on the NACRA testbed indefinitely.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines March 27, 2015

News General Dynamics withdraws as T-100 prime contractor General Dynamics Information Systems and Technology has withdrawn itself as the prime contractor on the T-100, the offering for the T-X trainer replacement program based on the Alenia Aermacchi M-346 design.   Business SpaceX’s fight with U.S. Air Force called a clash of perceptions Billionaire Elon Musk’s...
 
 

News Briefs March 27, 2015

Contractor extradited from Iraq pleads guilty in bribes case A man extradited from Iraq in a military contract bribery case has pleaded guilty to three charges in an agreement with federal prosecutors. U.S. District Judge Thomas Rose has scheduled sentencing for July 1 for Metin Atilan. His attorney, Nick Gounaris, says the two sides agreed...
 
 

Ninth Boeing GPS IIF reaches orbit, sends first signals

Boeing Global Positioning System (GPS) IIF satellites are steadily replenishing the orbiting constellation, continuing to improve reliability and accuracy for users around the world. The ninth GPS IIF reached orbit about three hours, 20 minutes after launching today aboard a United Launch Alliance (ULA) Delta IV rocket from Cape Canaveral Air Force Station, Fla., and...
 

 

F-35 Lightning II costs drop, report shows

A recent account of F-35 Lightning II aircraft program costs shows decreases, the Air Force’s F-35 program executive officer told reporters in a media roundtable March 24, 2015. Lt. Gen. Christopher C. Bogdan, citing this year’s selected acquisition report on the aircraft, called the roundtable to clarify cost and performance facts. He also acknowledged the...
 
 
NG-growler2

Northrop Grumman delivers center/aft ‘shipset’ for first international EA-18G Growler

Northrop Grumman photograph Northrop Grumman mechanics perform final quality inspections on the center/aft fuselage shipset produced by the company for the first Australian EA-18G Growler. The subassembly will be delivered to B...
 
 
Navy photograph by Monica McCoy

Navy conducts production acceptance test of Tomahawk missile

Navy photograph by Monica McCoy Members of the Explosive Ordnance Disposal Technology Division team at Naval Surface Warfare Center, Indian Head prepare a Tomahawk missile for a functional ground test at the Large Motor Test Fa...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>