Question: The Whitianga Festival of Speed (Whitianga FOS) was a motorsport festival held in the seaside town of Whitianga on the Coromandel Peninsula in New Zealand in 2009 and 2010, the festival hosted a multitude of events including which type of rotorcraft in which lift and thrust are supplied by rotors? 

Context articles: Te Rerenga
Whenuakite
Whitianga Aerodrome
Whitianga
Helicopter
Whitianga Festival of Speed
Ounuora River
Mahakirau River
Coroglen
309 Road

Te Rerenga is a locality on the Whangapoua Harbour, Coromandel Peninsula, New Zealand.
 State Highway 25 runs through it.
 Coromandel is 12 km to the west.
 Whitianga lies to the south east.
 The Waitekuri and Opitonui Rivers flow from the Coromandel Range in the west and south through the area to drain in the Whangapoua Harbour.
Whenuakite is a locality on the Coromandel Peninsula of New Zealand.
 State Highway 25 runs through it.
 Whitianga is north west, Coroglen 8 km west, Cooks Beach and Hahei north, Hot Water Beach north east, and Tairua 18 km to the south east.
 The Whenuakite River flows from coastal hills in the east through the area to drain in the Whitianga Harbour.
Whitianga Aerodrome (IATA: WTZ, ICAO: NZWT) serves the town of Whitianga, New Zealand.
 The aerodrome is located 1.5 NM west of Whitianga on the eastern side of the Coromandel Peninsula in the North Island of New Zealand.
Whitianga is a town on the Coromandel Peninsula, in the Waikato Region of New Zealand's North Island.
 The town is located on Mercury Bay, on the northeastern coast of the peninsula.
 The town has a permanent population of 4,790 as of June 2016, making it the second-largest town on the Coromandel Peninsula behind Thames.
A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors.
 This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward, and laterally.
 These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of VTOL (vertical takeoff and landing) aircraft cannot perform.
The Whitianga Festival of Speed (Whitianga FOS) was a motorsport festival held in the seaside town of Whitianga on the Coromandel Peninsula in New Zealand in 2009 and 2010.
 The festival hosted a multitude of events including the New Zealand Helicopter Championships, Offshore powerboat racing, Aerobatic Displays, Off-road Vehicle Demonstrations, Jet Ski racing and bespoke events such as Rally Car Vs Helicopter racing.
 The event was free for spectators.
The Ounuora River is a river of the Coromandel Peninsula in the Waikato Region of New Zealand's North Island.
 It flows generally east from the Coromandel Range, reaching the Whitianga Harbour close to the small settlement of Mill Creek, 5 km southwest of Whitianga.
The Mahakirau River is a river of the Coromandel Peninsula in New Zealand's North Island.
 It flows east from its source in the Coromandel Range, reaching the sea at Whitianga Harbour southwest of Whitianga.
Coroglen is a locality in the Coromandel Peninsula, New Zealand.
 It lies on State Highway 25, 18 kilometres south of Whitianga and 26 kilometres north west of Tairua.
 The "Tapu-Coroglen Road", a windy gravel road, connects it across the Coromandel Range with Tapu on the west coast of the peninsula.
The 309 Road is a 22 km gravel road between the towns of Coromandel and Whitianga in New Zealand.
 It winds its way from Coromandel, on the west side of the Coromandel Peninsula, over the ranges to Whitianga, on the eastern side.
 There are two theories as to how it got its name: one is that there are 309 bends in the road, the other is that horse-drawn coaches used to take 309 minutes to travel it.