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 February 25, 2015

News: Army to send headquarters group to Kandahar in first sign of revision to Afghan withdrawal plan - In the first official sign that the Pentagon plans to keep a U.S. military presence in southern Afghanistan after this year, the Army is sending the 7th Infantry Division headquarters from Joint Base Lewis-McChord on a year-long deployment...
 
 

News Briefs February 25, 2015

Lithuania restores compulsory military service Lithuania will restore compulsory military service for young men as tensions in Ukraine continue to worry the small Baltic nation, the government said Feb. 24. After a meeting of military leaders and top government officials, President Dalia Grybauskaite said the measure was necessary because of growing aggression in Ukraine. Military...
 
 
Sensor Concepts Inc. photograph

Air Force Research Labís handheld imaging tool expands aircraft inspection capability

Sensor Concepts Inc. photograph An operator demonstrates the portability of the handheld imaging tool. The technology provides maintainers the ability to evaluate aircraft in the field to ensure mission-readiness. When pilots c...
 

 

Boeing, Royal Australian Air Force test extended range weapon

The Boeing Joint Direct Attack Munition Extended Range demonstrated significant range increase while maintaining its expected accuracy during flight testing conducted by Boeing and the Royal Australian Air Force. The testing centered on a new wing kit that, when used in conjunction with the weaponís guidance kit, increases the bomb’s range from approximately 15 miles...
 
 

DRS Technologies to provide comm systems for Royal New Zealand Navy frigates

DRS Technologies Inc., a Finmeccanica Company, announced Feb. 25 that its Canadian subsidiary will be providing tactical integrated communications systems to the New Zealand Ministry of Defense for the Royal New Zealand Navy’s ANZAC-class frigates. This subcontract was awarded to DRS Technologies Canada Ltd. in support of a communications modernization contract from Lockheed Martin Canada...
 
 

Northrop Grumman LITENING achieves two million operating hour milestone

In the life cycle of every military system, some milestones stand out as signature achievements. One million operating hours is one of them – and Northrop Grumman’s fielded AN/AAQ-28(V) LITENING pods have hit that number for the second time. “This is a significant milestone for the LITENING program and our team is proud to be...
 




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>