His grafical solution looks like an intercept course of ca. 184.54T.
The mathematical solution , however, would be 183.48T.
So with this grafical solution a torpedo would miss the targeted hitpoint by around 18.5m at a range of 1km. The uncertain of this graf. solution are the unpredictable errors of the SH5-map-tools which can be greater or smaller.
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Dietrich von Carlewitz, 2nd Lt.
U-29
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