In the fixed-wing aircraft group, airplanes perform a number of medical evacuation, flights, or medevac. Piston engine aircraft perform a substantial quantity of these medical transportation flights. Piston-driven airplanes possess the advantages of greater speed and range than most choppers. Additionally, piston-powered airplanes are often able enough to control from runways that are very short, providing entry to the vast majority of airports.
http://prsync.com/cobb-medicaid-transportation/air-ambulance-aircraft-your-choices-for-medical-transportation-867148/
HTH.
I LOVE IT when non-pilots talk about aviation as though they possess some thorough knowledge.
We *should* ground these bastards, too, amirite? http://www.angelflight.com/