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Predictive capabilities of the so-called Unified Methodology (UM) are examined by the use of a Transferring Law (TL), to say, a common function of the test data on moving center cracks of different length in rather small specimens made from a ductile material. A combined analysis of these data and closely corresponding evidence from the literature indicate that the TL may be used, to a first approximation, as a simple quantitative tool to predict residual strength of proportionally scaled plates at least under uniaxial tension. The various effects of in-plane constraint, among them load biaxiality, are covered by the UM analysis.