Engerth locomotive

The distinctive feature of the Engerth design was an articulated tender as part of the main locomotive frame.

Some of the weight of the tender therefore rested on the driving wheels, improving adhesion, while articulation allowed the locomotive to navigate the narrow curves of mountain railways.

A speed of 11.5 kilometres per hour (7.1 mph) was required to be maintained and a maximum axle loading of 14 tonnes, with a boiler pressure not exceeding 8.5 kgf/cm2 (830 kPa).

[6] The Engerth design articulated the tender with the main locomotive frame, allowing some of the weight of the fuel and water to be carried on the driving wheels to improve adhesion.

Because the tender was articulated, rather than directly attached to the frame, the locomotive could traverse relatively sharp curves, while still enjoying the advantage of the additional adhesive weight gain.

An Engerth locomotive was featured on an Austrian stamp commemorating the 150th anniversary of the Semmering Railway in 2004.

Krauss of Munich built ten locomotive for the Ponferrada - Villablino Railway (PV) in Spain.

These powerful locomotives were capable of 60 kilometres per hour (37 mph) and could traverse curves of 100 metres (110 yd) radius.

This locomotive, No.28 Genf an 0-4-6T built by Maschinenfabrik Esslingen in 1858 to work the Schweizerische Centraalbahn (Swiss Central Railway).

[10][11] Buštěhradská dráha (Buštěhrad Railway) locomotive 103 Kladno[12] is preserved in the National Technical Museum in Prague, Czech Republic.

When the Mariazellerbahn was electrified the Niederosterreichische Landesbahn (NOLB) transferred them to their Waldviertler Schmalspurbahnen system at Gmund.

[18] The Beer Heights Light Railway has Gem, an Engerth type locomotive on its 7+1⁄4 in (184 mm) gauge line.

An Engerth locomotive
Wilhelm von Engerth
PV 2-6+4 No. 14 at Ponferrada, August 1970
Engerth locomotive Mh6 on the Mariazellerbahn
CF du Midi No.312 L'Adour