The Spitfires listed by bongodriver have Merlin 35 engines. The Merlin 35 engine is ~1550lbs dry weight. I did not catch that.
The Merlin III is 1375lbs dry weight.
The Merlin 35 is a post war engine and adds considerable weight to the front of the airplane shifting the CG forward.
The guns are removed along with all of the magazine, heating, and ducting also shifts the CG forward.
You can bet the new limits are not unstable or netural at any point.
It would be interesting to see the new weight and balance of the modern Spitfires.
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