
A realy interesting project. is that heli or Hobbit head? My tuppenceworth would be slim fuz right down(as per real one) massive reduction of engine pods. Enlarge tail fin and tailplane. Go for modern flexi delta head and 3 blades,broader chord with Clark Y section. 25 size engine. Minus 1o on blades , reduce incidence on stub wing to zero or +1o or +2o max. It would be a nice change from vintage style autogyros. I`ll be first in the queue for plans when you have got it organised. Should be a sell-able design. Delta head details from
www.autogyro.com Good luck with it.