Delmar Fire Dept responded for a traumatic injury at a residence on E. Grove Street. EMS requested aviation for transport to a specialty center. An additional medic unit and Engine 74-3 responded. A landing zone was established near-by at the high school. Delaware State Police Trooper 2 responded as the medevac unit. Engine 74-3's crew set up the landing zone. One patient was flown to Johns Hopkins Children's Center in Baltimore aboard DSP Trooper 2 helicopter.