Originally Posted by jetopa
driven by 2 turbines is a must and the cabin size of an Augusta 109 or Sikorsky 76 seems to be appropriate
The cabin sizes of these two are significantly different: as an indication, the Agusta A109S Grand can take two rows of 3 pax facing each other with legs intertwined, whilst the S76 can take up to three rows of 4 pax each, or a VIP fit of two armchairs plus a 3/4 place bench plus bar!
The mark of type will also be important. The A109S is vastly superior in performance to the A109C, and the S76C (or variants) will be a different kettle of crustaceans to the 76A.