Mmm, interesting that we have a doctor here telling us "Flying below normal rotary altitudes cannot be justified, on flight safety grounds." yet cannot point us in the direction of any black & white references.
No answers back in 2009;
http://www.pprune.org/rotorheads/385...-question.html
Helicoper forced to fly low in mercy dash for diver with bends - Daily Record
A Royal Navy Sea King helicopter from the rescue centre at HMS Gannet at Prestwick, in Ayrshire, was scrambled to airlift the woman to Aberdeen.
The crew were told by doctors not to fly above 300 feet and any changes in height had to be done "slowly" so any pressure change would not affect the patient.
I'm guessing that homonculus ("But heck I am just a doctor") wasn't one of those doctors!
Solution;
Helicopter Ambulance - SOS Hyperlite Portable Hyperbaric Chambers