SENIOR AIRMAN Michael Hafstad and SENIOR AIRMAN Adrian Faison, structural engineers with the 820th Rapid Engineer Deployable Heavy Operational Repair Squadron Engineer (Red Horse) are buffeted by the wind created by a CH-47 helicopter during New Horizon '97, first combined humanitarian and civic assistance exercise conducted between the United States and Guyana. Military personnel from the Air Force, Air Force Reserve & National Guard, Army, Army National Guard and Marine Corps participated in the exercise which included engineering and medical readiness training