How to properly design a VTOL/ADAV helicopter-plane?

[NCSH]

Oh yes, I didn't know either! THANKS !

It looks like it had a small load-bearing wing...too bad it was blown away by the rotors...

https://fr.wikipedia.org/wiki/Mil_Mi-12

A monster that only the Soviets knew how to make!

4 turbine engines but only 2 rotors?

They must not have had powerful enough turbines at the time or a redundancy safety story?

Certainly a logic of redundancy.
Almost all helicopters that must carry heavy loads have 2 turbine engines per rotor, sometimes even 3.
Except the V 22 Osprey and its cousins.

[Christophe]

Except the V 22 Osprey and its cousins.

Ah, that’s why the V22 prototypes killed so many people, you think?

Which cousins??

[NCSH]

Except the V 22 Osprey and its cousins.

Ah, that’s why the V22 prototypes killed so many people, you think?

Which cousins??

I do not know anymore !
These are not the kind of clearly identified flying objects that excite me the most...

There were several prototypes in the 70s and 80s, before reaching the V 22 Osprey series.
And many similar projects... especially in Europe.

[Christophe]

Distribution of lift and weight on an airliner and a delta wing:

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