Patuxent River, Md. (Sept. 19, 2007) -- An HH-60 MRR (medium range recovery) Jayhawk helicopter undergoes EMI testing at Patuxent, Md., as part of the conversion process into the MH-60J/T, a modification to meet Airborne Use of Force (AUF) requirements. The MRR (Medium Range Recovery) program represents one of the most comprehensive aviation upgrade programs in USCG history. The Coast Guard's MRR program will deliver a total of 42 MH-60T configured aircraft for Coast Guard operators. USCG file photo.