However, the improved 745 kW (999 hp) Jumo 211 A-1 powerplant prompted the cancellation of the D series altogether and concentration on the design of the E series.
然而，改良了的745 kW（999 hp）Jumo 211 A-1動力裝置促使了D系列完全中止並且集中於E系列的設計。