Quote:
Originally Posted by Crumpp
That is not a Spitfire Mk I load plan and is not applicable at all. The NACA was well aware of the CG limits and capable of performing a proper weight and balance.
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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:
Quote:
(Tests, Results and Discussion, page 5) All of the flying qualities tests were made with the center of gravity at a distance of 31.4 inches behind the leading edge of the wing at the root. The mean aerodynamic chord of 85 inches was computed to be 4.80 inches back of the leading edge of the wing at the root. The center of gravity was therefore at 31.4 percent of the mean aerodynamic chord. Because no accurate drawings of the Spitfire were available, the calculated location of the mean aerodynamic chord may be somewhat in error.
The center-of-gravity location with full military load is not known.
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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.
Quote:
Originally Posted by Crumpp
Reading is fundamental.
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