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  August 1, 2019 | International, Naval

  NRL Pigment Package for Ships Slows Discoloration, Lowers Solar Temperature Load

  By Sara Francis, U.S. Naval Research Laboratory Public Affairs WASHINGTON (NNS) -- A pigment package designed by the U.S. Naval Research Laboratory (NRL) to slow discoloration of the exterior coating on surface ships has started to make its way into the fleet and is producing early, positive results. NRL researchers created the pigment combination to satisfy the fleet requirement for the Navy standard "haze gray" paint that will remain color stable for longer than current coatings. While many paint manufacturers had produced new coating technologies that solved a variety of other problems, such as corrosion and delamination, some ships still showed discoloration in as little as 18 months. Additionally, different coatings from different manufacturer's fade to different hues, resulting in an inconsistent appearance between the original coatings and any in-service touch-ups or repairs. “We had a good idea on how to solve the issue, and we leveled the playing field by providing the pigment combination to all companies at the same time,” said Dr. Erick Iezzi, senior research chemist in the Center for Corrosion Science and Engineering at NRL. NRL is currently working with Naval Sea Systems Command, Naval Systems Engineering Directorate, Ship Integrity & Performance Engineering (SEA 05P) to transition the new pigment combination into a military specification, which will become the standard for haze gray paint applied to surface ships. The first vessel to receive a coating with the pigment combination was USS Essex (LHD 2) in 2017. The most recent to vessel to receive it was USS George Washington (CVN 73). While all paint manufacturers have access to the pigment technology, three companies have already started mass-producing the paint, generating an estimated tens of thousands of gallons thus far. Recently, Sherwin-Williams won the Society for Protective Coatings Military Coatings Project Award of Excellence for its new topcoat paint that incorporates the new pigment after it was used to overhaul USS George Washington. “It was motivating to know that several companies were willing to lean on our expertise to provide a new technology that would produce the best product for the Navy,” Iezzi said. From 2012 to 2013, Iezzi worked with corrosion science researchers Jimmy Tagert and Candice Langaster to design five new pigment combinations and test them for color stability, solar reflectance and other coating properties. After testing all combinations, they provided the best performer to paint and coating manufacturers to begin integration in 2015. The pigment combinations underwent testing at NRL's Key West facility for atmospheric exposure performance and accelerated weathering. Coatings that contained the new pigments proved to have excellent color stability, were five times harder than silicone alkyd, had improved gloss retention and chemical resistance, and provided greater barrier properties. “It was great working with the manufacturers and demonstrating our ability to provide a product needed for the fleet,” Tagert said. For more information, visit http://www.navy.mil, http://www.facebook.com/usnavy, or http://www.twitter.com/usnavy. https://www.navy.mil/submit/display.asp?story_id=110401

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  August 17, 2020 | International, Aerospace

  New Tool Developed to Improve Pilot Visibility

  8/14/2020 By Connie Lee Special Operations Command and the Army are adopting new technology to improve visibility during flight operations in degraded conditions. Sierra Nevada Corp. was selected for the third phase of the degraded visual environment pilotage system competition following a 2015 airborne test. The company's most recent contract modification includes full-rate production, according to a company news release. Paul Bontrager, Sierra Nevada's vice president for government relations, said the system will help pilots operate in areas with limited visibility such as fog and dust. “We've always had a hard time flying in snow and flying in dirt,” he said. “In Army aviation we've been waiting for this technology to mature, and it has.” To enable pilots to maintain their situational awareness, the product has multiple features such as cameras and radars, he said. The system also has light detection and ranging. By combining sensors, a pilot is able to see a more accurate picture of the surrounding environment. Additionally, there are different versions of the system with varying amounts of sensors, he noted. Sierra Nevada can take data from multiple sensors and fuse the imagery onto a screen, he said. “A camera can do so much,” he said. “But then a lidar can actually paint the landing area and give a lot of detail about the surface.” The military has often had to fly in challenging operating environments, he noted. In the Middle East, pilots would often experience “brown out,” which occurs when visibility is impacted by dust and sand which has resulted in crashes, he said. “When we got embroiled in the wars in Iraq and Afghanistan, it was a significant thing,” he said. “We actually had more losses in the more recent years when it wasn't direct combat operations. We have more losses annually due to flying into planet Earth unintentionally than we do from enemy fire.” The degraded visual environment pilotage system is likely to be used in Army Chinooks and Black Hawks, and any aircraft with lifting capacity, he noted. “These are aircraft that have to land and take-off ... in all environments,” he said. “This is where it's most likely to be used initially ... and hopefully all aircraft will be outfitted with this technology eventually.” https://www.nationaldefensemagazine.org/articles/2020/8/14/new-tool-developed-to-improve-pilot-visibility

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  May 1, 2019 | International, Aerospace

  Beyond Chinook: Army Secretary Challenges Industry To Revolutionize Heavy Lift

  By SYDNEY J. FREEDBERG JR. A light scout and a mid-size transport remain Army aviation's top two priorities, Secretary Mark Esper said, but industry needs to start thinking about the next heavy-lift aircraft and stop fighting against cuts to the venerable CH-47. WASHINGTON: “I'm asking industry is to think about heavy future vertical lift,” Army Secretary Mark Esper told reporters today. “Where I need their heads to be is thinking about future heavy vertical lift, not about how do we maintain what we have now and make upgrades here or there.” Translation: Boeing and Pennsylvania legislators, stop fighting me to restore funding for the latest upgrade to the venerable CH-47 Chinook — built outside Philadelphia — and join me in brainstorming a radically better aircraft for future great-power wars with Russia or China. “I really want to think aggressively, boldly about what the future may hold, how it can be different,” Esper said. Is that just your advice to industry, I asked, or is there some kind of preliminary study planned that companies could actually get government money for? It's premature to talk dollars, Esper replied. “Whether we help fund that at some point, I don't know, I'm not going to talk about that right now,” he said. “My comment was only we need aircraft in the future that can do that heavy vertical lift movement, but can ... survive in a very contested airspace and keep up with the FARAs and FLRAAs.” That's the Future Attack Reconnaissance Aircraft — a light scout to fill the gap left by the retired OH-58 Kiowa — and the Future Long-Range Assault Aircraft — a mid-size transport to replace the UH-60 Black Hawk. Both are intended to be high-speed, long-range aircraft.The solution probably will be turboprop/helicopter hybrids, rather than conventional helicopters, that can operate on fast-paced, far-flung future battlefields where precision-guided missiles can kill the forward fuel depots and maintenance bases on which today's shorter-ranged helicopters rely. FARA is the Army's top-priority aircraft program, Esper reiterated here at the Brookings Institution today, and FLRAA is No. 2. But once the light scout and the mid-size transport programs are further along, Esper said for the first time today, his no. 3 priority will be a new heavy hauler. “We're not there yet, right, obviously we need to get FARA and FLRAA moving,” Esper said. “No. 3 is I need to eventually think about what's the future of heavy vertical lift,” Esper told the audience at Brookings. “What's the future replacement for the Chinook” with the greater speed, range, payload, and survivability required for future battlefields? Full article: https://breakingdefense.com/2019/04/beyond-chinook-army-secretary-challenges-industry-to-revolutionize-heavy-lift