@VF: little excursion from a paramedic: this has to do with a different approach in German (H)EMS compared to most other places:
Many other countries worldwide like e.g. the US practice a
"Load & Go" scheme in their EMS. The doctrine dictates that the patient is to be transferred without any undue delay to the nearest trauma center where a trauma surgeon or other required appropriate specialist is available. That means the paramedics / nurses intubate, immobilize, collect any astray limbs or other bodyparts and then go. Anything else that needs to be done has to be done in flight or postponed to hospital. Turn-around time on site is somewhere between 5-10 minutes at a prepared scene.
German doctrine is
"Stay and Play": we have an emergency physician based EMS system (that's the "
NOTARZT" =
emergency physician) where the idea is to bring the doctor and the hospital care to the patient. I.e. we stabilize the patient as much as possible prior to transport, full treatment can be performed on the road side / in the ambulance prior to boarding the helicopter. Time on scene can thus easily become 20 minutes to half an hour.
So if you leave your rotor running for that long everyone around you is deaf, you're out of fuel and the scene became more hazardous, too.
Simply no gain.
And hanging the tail rotor over a ledge requires ledges and helicopters that can fit a stretcher through the side doors, neither of which is particularly common in ze fazerland !
Cheers
