Complex sentence: However, the D.520 had superior maneuverability, matching the turning circle although displaying nasty departure characteristics, spinning out of the turn repeatedly during the tests while the Bf 109, owing to its slats, could easily sustain the turn on the edge of a stall.
Split into simpler sentences: However, the D.520 had superior maneuverability, matching its turning circle, although displaying nasty characteristics when departing and spinning out of the turn repeatedly during the tests. The Bf 109, owing to its slats, could easily sustain the turn on the edge of a stall.