A 206 is a single pilot helicopter as per RFM and
can be operated in Multi Crew enviroinment which is different from stating that it can be definied as Multi Pilot helicopter; an S64 or an S92 for example are Multi Pilot helicopters as per RFM and
can't be operated with only one pilot.
Old helicopters, especialy does used in the miltary, were mostly Multi Pilot because of the size and type of operations which were carried out.
Today, due to the constant improvement of technology, helicopters can be realistically flown single pilot under both VFR/IFR rules and VMC/IMC conditions.
This is the Catch 22 condition and were most get stuck in the dilemma but, if you stick to the definitions, not many helicopters are indeed Multi Pilot.
