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460 30 TwistingEinstein–Maxwell and pure radiation fieldsthe subcases treated there, the complex (electric plus magnetic) charge Qis given (as a solution of (30.24)) asQ(ζ) = α(ζ) for L ,u =0, (30.27)Q(ζ,ζ) =α(ζ)P 2 G 2 for I =0. (30.28)Special cases included here are the Reissner–Weyl solution (15.21), thecharged NUT and Kerr–Schild solutions etc. Note that the charged C-metric (21.22) and its twisting generalization are not covered by Theorem30.2 as in both cases the Maxwell field is radiative (Φ 0 2 ̸= 0).The Einstein–Maxwell fields covered by (30.28) together with (30.26)are exactly those fields which are non-radiative in the sense that the Weyltensor and the Maxwell tensor do not contain terms with r −n , wheren