When you get 21 gallons per hour with the Aztec, what is the speed and what is your range? I am looking for a range of 1,400 or 1,500. Fast would be nice too, but range and useful load is more important. The 2000 # useful load of an Aztec looked good as it still had room for passengers with full fuel. i have a C206 that carries everything but would like to go farther.