Costa Rican police officers and coastguardsmen observe simulated airborne disaster relief operations at “El Murcielago” training camp on the Pacific coast of Costa Rica, Aug. 25. Four CH-46 Sea Knight helicopters from Marine Medium Helicopter Squadron 774 from Norfolk, Va., arrived at “El Murcielago” so 105 Costa Rican police officers and coastguardsman could participate in take-offs and landings in relevance to a rapid airborne response to a natural disaster or civic assistance operation.