Aeromedical Units We are fortunate to have four MedEvac helicopters that are available to serve Gates County’s air transport needs. Nightingale flies out of Sentara Norfolk General Hospital in Norfolk, V.A. LifeEvac flies out of the Petersburg, V.A area. Vidant flies out of Vidant Hospital inGreenville, N.C.(Vidant also has an aircraft out of Rocky Mount, NC)