Helicopter Huddle Navy physicians discuss aeronautical medical evacuation procedures on the flight deck of Brazilian navy hospital ship NAsH Carlos Chagas, following a medical clinic mission stop in Prainha, Brazil, Feb. 26, 2019. The visit marks the eighth and penultimate stop of a monthlong mission by four U.S. Navy physicians and their Brazilian navy counterparts embarked aboard Chagas to exchange medical expertise and to bring medical care to isolated communities along the Amazon River. SHARE: Download: Full Size (1.25 MB) Credit: Navy Petty Officer 1st Class Byron C. Linder VIRIN: 190226-N-ZW825-0572.JPG Photo Gallery