Sikorsky S76
The S76 is an American made, medium size helicopter used mainly for VIP and corporate transport. It was the first Sikorsky aimed at the commercial market rather than the military and could be configured to seat either 12 passengers, or 6 passengers in VIP. The S76 has 4 tail and main rotor blades, with key aerodynamic features including titanium spars and a 10 degree twist to provide a more even loading in the hover.