Thanks for your message. I will have a look, i have no knowledge about 150/50;s and what happens to useful load and usable fuel ect. Will have a look though.
The usable fuel, with all four tanks full, is 45.5 gallons. Fuel burn at 75% power is 8.4 GPH. Cruise sped upto ~12,000' ~130 MPH. Climb rate a Max Gross weight at DA=4000' >1000 FPM - at DA=9000' 700 FPM. Useful load = what ever you can close the doors on.
If you are worried about flying over 1600 pounds total weight look for something else.
