Skitube Alpine Railway

Skitube Alpine Railway
A Skitube train commences its ascent just west of the Bullocks Flat terminus
Overview
Owner	Broadspectrum (49%) Kumagai Gumi (49%) Ken Bilston (2%)
Termini	Bullocks Flat Blue Cow
Stations	3
Service
Services	3 per hour (peak season)
History
Opened	29 August 1988
Technical
Line length	8.5 kilometres (5.3 mi) (Map)
Number of tracks	single track with passing loops
Rack system	Lamella
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	1,500 V DC overhead catenary
Operating speed	Uphill: 40 km/h (25 mph) Downhill: 21 km/h (13 mph)
Highest elevation	1,905 m (6,250 ft) above sea level
Maximum incline	12.5%
Route map Bullocks Flat Workshops Thredbo River Perisher Valley Blue Cow This diagram: view talk edit

The Skitube Alpine Railway is an Australian standard gauge electric rack railway in the Kosciuszko National Park in New South Wales. It provides access to the snowfields at Blue Cow Mountain and the Perisher Valley.

In the 1980s, development of the Thredbo and Perisher Valley skifields was increasing, but the mountain road providing access to them was limited. In 1980 the National Parks & Wildlife Service proposed the establishment of a day visitors resort at Blue Cow Mountain, which would increase the traffic demands. A number of transport modes were examined, including a funicular railway, chairlift, and an aerial gondola, but all were of limited capacity, affected by weather, and would scar the mountainsides.^[1][2]

A rack and pinion railway was found to be the best option, running mostly underground. The Perisher Skitube Joint Venture was established, with Transfield and Kumagai Gumi each holding a 49% share. The main proponent of the scheme, Canberra engineer Ken Bilston, held the remaining 2% share and was technical manager for the project.^[1] Feasibility studies commenced in 1982 for a double track railway on the assumption that the road would close in winter, but this was altered to a single track line with passing loops when the closure was ruled out.

Construction commenced in October 1984, with tunnelling beginning in June 1985.^[3] The 3.3 km Bilston Tunnel was constructed using a 5.5-metre (18 ft) tunnel boring machine, while the 2.6 kilometre Blue Cow tunnel was constructed using the traditional "drill and blast" method.^[4] A consortium of Swiss and Australian companies (SLM, BBC, and Comeng^[5]) provided the rolling stock, overhead wiring, sub-stations, communications and signalling. The 5.9 kilometre line opened from Bullocks Flat to Perisher on 26 July 1987 with the entire line opened through to Blue Cow on 31 March 1988.^[6][7][8]

In October 2016, Stadler Rail commenced an upgrade of the line. It was to be completed by April 2017.^[9][10][11]

The Swiss-designed railway provides easy access between the Alpine Way at Bullocks Flat and the Perisher Blue ski resort sites of Perisher Valley and Blue Cow Mountain. The Skitube passes through two tunnels and has three stations, two of which are underground. The terminal at Bullocks Flat has parking facilities for 3,500 cars and 250 coaches, as well as passenger, administrative and control facilities.^[12]

The line begins at an elevation of 1,125 metres and runs above ground for 2.6 kilometres, 150-metre-long steel curved viaduct. A passing loop is located before entering the tunnel, which climbs on a 12.5% gradient to the Perisher Valley terminal. A provision for a second 300-metre-long passing loop has been made inside the tunnel. To Blue Cow the line first drops downgrade, then climbs 1.3 kilometres on a 3% gradient, then climbs at 12.5% to the terminus.^[1] The railway reaches a maximum elevation of 1,905 metres above sea level at Mount Blue Cow station. The workshops include two sidings carriages to be stabled in. The stabling yard is enclosed by a tall electric fence and also houses a diesel tractor used for shunting. A small goods wagon is also used to transport rubbish and other freight from the Blue Cow terminal, as it has no road access in the winter months.

An off-peak schedule is run in early to late June and mid to late September, either side of the peak July–September ski season. Trains run between 05:00 and 01:00, allowing for après-ski activities or night skiing. The Bullocks Flat terminus has a large, three-sided station with extensive parking, a pass office, a ski and snowboard school, information desk, kiosk, souvenir shop, and ski and snowboard hire shop. This allows day trippers to get tickets and equipment and be loaded for the 10-minute journey to the Perisher Valley station, and a further 7 minutes to Blue Cow. It is adjacent to the Lake Crackenback Resort.

The majority of the railway is underground, comprising the Bilston and Blue Cow tunnels, 3.3 km (2.1 mi) and 2.6 km (1.6 mi) long respectively. The depth of the tunnels varies from between 4 and 550 m (13 and 1,804 ft), and their diameter between 5 and 5.5 m (16 and 18 ft).^[13] 30 kg/m (60.5 lb/yd) second-hand rail from the State Rail Authority was used to build the line, and two electrical substations are fed with 33 kV power, and output 1.5 kV DC for the overhead wiring.^[1]

To operate the service 11 carriages were built by Comeng, Granville and Fuji Heavy Industries. Each is 16.8 m (55 ft 1+3⁄8 in) long and 3.8 m (12 ft 5+5⁄8 in) wide, and can carry 225 passengers. This provides for the movement of around 4,500 people per hour.^[13] Eleven passenger cars in total were built, 4 motor cars, 4 driving trailers and 3 non driving trailers. The motor cars each have four 301 kW (404 hp) traction motors, making them perhaps the most powerful rack railcars in the world. The braking system is mixed regenerative and rheostatic.^[1] The train is capable of 40 km/h (25 mph), however this is limited during the downhill journey to 21 km/h (13 mph).

Two four-wheel 'S' open wagons were acquired from the State Rail Authority for freight traffic, and have been cut down to flat wagons. These were replaced by a NVMF bogie wagon.^{[citation needed]} A 1958 Tulloch Limited built locomotive was also purchased.^[8]

The trains of the Skitube operate on the Lamella rack system, which was developed by Von Roll Holding.

• Blue Cow
• Bullocks Flat
• Perisher Valley

• 
  Skitube Curved Viaduct in 2022
• 
  Skitube train at Bullocks Flat terminal in 2023
• 
  Workshop yard showing shunting tractor in background, stabled carriages, maintenance trolley and electric fence
• 
  Portal of the Bilston tunnel and passing loop in 2022

• Media related to Perisher Ski Tube at Wikimedia Commons
• Perisher travel guide from Wikivoyage
• Skitube information

36°22′S 148°24′E / 36.367°S 148.400°E / -36.367; 148.400