2:20 Engine StartUp.
2:50 Rotor Blades Turning.
5:30 Lift Off.

Actual Takeoff is at around 5:30, so fast forward to that point if you're impatient.

Shot with borrowed Sony PMWEX1 Camcorder;
https://www.amazon.com/gp/product/B00...

Filmed after the Airshow when all the aircrafts and helicopters were leaving all at once. It pays to stick around after the airshow. In my case, literally.

Video of MRH90 (green army helicopter) take off here;
   • MRH90  Wings Over Illawarra 2013  

SikorskyErickson Air Crane 'Incredible Hulk'
From Wings Over Illawarra Air Show 2011

Only on SikorskyErickson Air Crane would you find a staircase to tail rotor section.

Manufacturer: Sikorsky
Model: S64E
Year built: 1968
Aircraft Type: Rotorcraft
Number of Seats: 3
Number of Engines: 2
Engine Type: Turboshaft
Aircraft Registration Number: N164AC