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Mainline Trunk South - Dunedin and Christchurch

This evening's SNO sees the spotlight on the Southern Mainline Trunk between the South Island's two largest cities, Dunedin and Christchurch.

This route is currently served daily by Air New Zealand Link in the ATR-72 and Dash 8-300, although the route is also suitable for any medium jet or light aircraft.

Dunedin (Māori: Ōtepoti) is the second-largest city in the South Island of New Zealand, and the principal city of the Otago Region. While Tauranga, Napier-Hastings and Hamilton have eclipsed the city in population in recent years to make it only the seventh largest city in New Zealand, Dunedin is still considered to be one of the four main cities of New Zealand for historic, cultural, and geographic reasons. Dunedin was the largest city by territorial land area until superseded by Auckland on the creation of the Auckland Council in November 2010. Dunedin was the largest city in New Zealand by population until about 1900. The city population at 5 March 2013 was 120,246. The Dunedin urban area lies on the central-eastern coast of Otago, surrounding the head of Otago Harbour. The harbour and hills around Dunedin are the remnants of an extinct volcano. The city suburbs extend out into the surrounding valleys and hills, onto the isthmus of the Otago Peninsula, and along the shores of the Otago Harbour and the Pacific Ocean.

The city's largest industry is tertiary education – Dunedin is home to the University of Otago, New Zealand's first university (1869), and the Otago Polytechnic. Students account for a large proportion of the population; 21.6 percent of the city's population was aged between 15 and 24 at the 2006 census, compared to the New Zealand average of 14.2 percent.

Christchurch (Māori: Ōtautahi) is the largest city in the South Island of New Zealand, and the country's third-most populous urban area. It lies one third of the way down the South Island's east coast, just north of Banks Peninsula which itself, since 2006, lies within the formal limits of Christchurch. The population of Christchurch City at the 5 March 2013 census was 341,469.

The city was named by the Canterbury Association, which settled the surrounding province of Canterbury. The name of Christchurch was agreed on at the first meeting of the association on 27 March 1848. It was suggested by John Robert Godley, who had attended Christ Church, Oxford. Some early writers called the town Christ Church, but it was recorded as Christchurch in the minutes of the management committee of the association. Christchurch became a city by Royal Charter on 31 July 1856, making it officially the oldest established city in New Zealand.

The river that flows through the centre of the city (its banks now largely forming an urban park) was named Avon at the request of the pioneering Deans brothers to commemorate the Scottish Avon, which rises in the Ayrshire hills near what was their grandfathers' farm and flows into the Clyde.

The usual Māori name for Christchurch is Ōtautahi ("the place of Tautahi"). This was originally the name of a specific site by the Avon River near present-day Kilmore Street and the Christchurch Central Fire Station. The site was a seasonal dwelling of Ngāi Tahu chief Te Potiki Tautahi, whose main home was Port Levy on Banks Peninsula. The Ōtautahi name was adopted in the 1930s. Prior to that the Ngāi Tahu generally referred to the Christchurch area as Karaitiana, a transliteration of the English word Christian. The city's name is often abbreviated by New Zealanders to Chch. In New Zealand Sign Language, the city's name is the fingerspelled letter C (made by forming the hand into a C shape) signed twice, with the second to the right of the first, while mouthing "Christchurch".

Flight Routes

Dunedin to Christchruch (Odd Flight Levels) - DNCH1 - BIDEL Y477 CH

Christchurch to Dunedin (Even Flight Levels) - CHDN1 - CH Y714 IDARA Y814 MIPAK

Airports

Positions

 CallsignRadio NameFrequencyFreq
CTRNZCH-K_CTRChristchurch Control129.400
 NZCH-S_CTRChristchurch Control129.300
APPNZCH_APPChristchurch Approach126.100
TWRNZCH_TWRChristchurch Tower118.400
 NZDN_TWRDunedin Tower120.700