25 March 2022 NPS Research Seeks to Advance Aircraft Turbine Resilience to Particulates MONTEREY, Calif. - In late 2015, two Marines were killed and 20 others injured after a MV-22 Osprey crashed during pre-deployment training at Bellows Air Force Base in Hawaii. The culprit … Airborne sand and dust particulates caused brownout conditions for the aviators and were ingested into the...