I am tinkering around with the freeware Alphasim RA-5C Vigilante. Panel set up, new paints, yada yada. The stock flight dynamics yields a plane that stalls very very easily. I swapped in the flight dynamics from Bob Cichilo's (I hope I got his last name right) 3rd update of the Vigilante. The stalling is gone, but the plane goes into a very hard nose up attitude once it gets some decent air speed built up. Even with power rolled back to 80% (as depicted on the RMP gauges), the plane still goes nose up. It takes nearly full down trim to get the plane to fly level.

I moved the fuel tanks forward to shift more weight toward the nose. They were set at the center of gravity. I combined the three center tanks into one larger 1090 gallon tank and moved it forward 7 feet from the COG. The wing tanks I moved forward 3 or 4 feet of COG. And still the plane noses up.

Anyone have any tips for getting the Vigilante to fly level without having to use the AP or max down trim?

OBIO