Fixed Wing aircraft were the first aircraft used in medEvac transport. A medical section of the Army Air Corps was created as early as June 1, 1925 using converted DeHaviland aircraft. Helicopters did not see use as medical transports until 1944.
In 1926, the United States Army Air Corps used a converted DeHaviland aircraft to transport patients from Nicaragua to France Army Base in Panama, one hundred and fifty miles away.