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The aim of the present work was to apply the magnetic emission technique ininstrumented drop weight testing of large SE(B) fracture mechanics samples. Cast ferriticsteel specimens have been tested in the lower shelf region. Two evaluation methods havebeen used and compared: force based quasi-static evaluation and dynamic key curvemethod. For the latter one the time-to-fracture measurement is necessary, which was doneby applying the magnetic emission measurement technique. The magnetic emission probewas successfully installed onto a drop weight tower first time in the world. The twoevaluation methods delivered very similar KId values.