Railway track gauge (914 mm)
Fintown station on the trackbed of the County Donegal Railways Joint Committee (CDR) in County Donegal
A bridge of the defunct National Railroad of Mexico in 1883
A railbus on the Ferrocarril Santa Ana near Machu Picchu
An electric tram on the Tranvía de Sóller on the Spanish island of Majorca
Three foot gauge railways have a track gauge of 3 ft (914 mm ) or 1 yard . This gauge is a narrow gauge and is generally found throughout North , Central , and South America . In Ireland , many secondary and industrial lines were built to 3 ft gauge, and it is the dominant gauge on the Isle of Man , where it is known as the Manx Standard Gauge . Modern 3 ft gauge railways are most commonly found in isolated mountainous areas, on small islands, or in large-scale amusement parks and theme parks (see table below). This gauge is also popular in model railroading (particularly in G scale ), and model prototypes of these railways have been made by several model train brands around the world, such as Accucraft Trains (US), Aristo-Craft Trains (US), Bachmann Industries (Hong Kong) , Delton Locomotive Works (US), LGB (Germany) ,[1] and PIKO (Germany) .
Minimum-gauge Minimum-gauge railways Narrow gauge
2 foot and 600 mm
2 ft 3 in (686 mm )
750 mm (2 ft 5+ 1 ⁄2 in )
760 mm (2 ft 5+ 15 ⁄16 in )
2 ft 6 in (762 mm )
800 mm (2 ft 7+ 1 ⁄2 in )
891 mm (2 ft 11+ 3 ⁄32 in ) Swedish three foot
900 mm (2 ft 11+ 7 ⁄16 in )
3 ft (914 mm )
950 mm (3 ft 1+ 3 ⁄8 in ) Italian metre gauge
1,000 mm (3 ft 3+ 3 ⁄8 in ) metre gauge
1,050 mm (3 ft 5+ 11 ⁄32 in ),
1,055 mm (3 ft 5+ 1 ⁄2 in ),
3 ft 6 in (1,067 mm )
1,093 mm (3 ft 7 in ),
1,100 mm (3 ft 7+ 5 ⁄16 in ),
1,200 mm (3 ft 11+ 1 ⁄4 in )
4 ft (1,219 mm )
4 ft 1 in (1,245 mm ), Middleton Railway
4 ft 6 in (1,372 mm ), Scotch gauge
4 ft 6+ 1 ⁄2 in (1,384 mm ), Scotch gauge
4 ft 7+ 3 ⁄4 in (1,416 mm )
4 ft 8 in (1,422 mm ), almost standard gauge
4 ft 8+ 1 ⁄4 in (1,429 mm )
1,432 mm (4 ft 8+ 3 ⁄8 in )
Standard gauge Broad gauge
1,440 mm (4 ft 8+ 11 ⁄16 in )
1,445 mm (4 ft 8+ 7 ⁄8 in )
1,450 mm (4 ft 9+ 3 ⁄32 in )
4 ft 9+ 3 ⁄8 in (1,457 mm )
1,458 mm (4 ft 9+ 13 ⁄32 in )
4 ft 10+ 7 ⁄8 in (1,495 mm ), Toronto gauge
5 ft / 1,524 mm and 1,520 mm (4 ft 11+ 27 ⁄32 in ), Russian gauge.
5 ft 2+ 1 ⁄4 in / 1,581 mm and 5 ft 2+ 1 ⁄2 in / 1,588 mm , Pennsylvania gauge
5 ft 3 in (1,600 mm ), Irish gauge
5 ft 4+ 1 ⁄2 in (1,638 mm ), Baltimore gauge
1,668 mm (5 ft 5+ 21 ⁄32 in ), Iberian gauge
5 ft 6 in (1,676 mm ), Indian gauge
7 ft 1 ⁄4 in (2,140 mm ), Brunel gauge
3,000 mm (9 ft 10+ 1 ⁄8 in ), Breitspurbahn
8,200 mm (26 ft 10+ 27 ⁄32 in ), Lärchwandschrägaufzug
9,000 mm (29 ft 6+ 5 ⁄16 in ), Krasnoyarsk ship lift
List of track gauge articles Gauge differences Transport mode Categories
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction