Christoph 44 EC135 D-HDRK Göttingen 2017   Deutsche Rettungsflugwacht (DRF) Eurocopter EC135P2 "Christoph 44" Air Ambulance Helicopter (Reg. D-HDRK, s/n 0477) during takeoff in Göttingen, Germany. Christoph 44 is called through PSAP Göttingen and stationed at the university hospital of Georg-August-University of Göttingen.