Quote:
Originally Posted by NZtyphoon
http://www.spitfireperformance.com/k...cg-diagram.jpg
Yeah right, it says "C.G Diagram" in nice big letters at the bottom so people who can read understand it has nothing to do with the centre of gravity of Spitfire Mk Is.
NACA report Measurements of the Flying Characteristics of the Spitfire Va: As per usual Crumpp has fudged what the report actually says:
Crumpp has chosen to completely ignore that NACA's own report states that their calculations might have been in error, nor did NACA know what the cg was with full military load. " The NACA was well aware of the CG limits and capable of performing a proper weight and balance." completely wrong.
 
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You want to quote the rest of this paragraph after "CG with full Military Load is not known"? You want it explained as to what they did?
The same longitudinal instability characteristics noted by the NACA are found as warnings in the Operating Notes written by the Air Ministry. The accident statistics confirm the validity of the warnings and the NACA findings.