I think the Super-Belvedere may be a result of the artist reading the written description
of the Type 194 but not being aware of the details of the design.
From the
Bristol Putnam in the section on the Belvedere and related helicopters:
"A still larger civil design, Type 194, was also investigated, having a fixed wing amidships to
offload the rotors during cruising flight and powered by four D.H. Gnome turbines in pairs
driving two six-bladed rotors designed to reduce vibration at high forward speeds."
So the painting:
Enlarged Belvedere?, check; wing? check; four engines in pairs? check.
However on the
real Type 194 the engines were in pairs at the base of each pylon.
Opens up all sorts of possibilities if one takes only a written description and lets the mind wander.
p.s. is that Kit driving the 99?