EC 135
MR diam : 10.20m (4 blades)
TR diam : 1.00m (10 blades)
Max Gross : 2910 Kg
EC 130
MR diam : 10.69m (3 blades)
TR diam : 1,00m (10 blades)
Max gross : 2400 Kg
Sure, one has to take into account other factors like main blade chord, distance between fenestron and MR mast (leverage effect), probably the Rpm's of all those rotors, but do these machines actually have the same fenestron for a 500 Kg Max gross weight difference ?