NATIONAL FLORIDA AIRLINES
From 1981 to 1983, National Florida operated de Havilland Twin Otters, Piper Navajos, and a Swearingen Metroliner on routes that connected a half dozen Florida cities.
Metroliner N602AS pictured at Miami's gate H-1B in January 1983.
Metroliner N602AS pictured at Miami's gate H-1B in January 1983.
Twin Otter N779CC in May 1983.
National Florida Airlines route map from June 15, 1983.