The Córas Iompair Éireann 611 class locomotives
were delivered from the manufacturers, Motorenfabrik Deutz
between December 1961 and February 1962, entering revenue earning service in the following August after receiving the new brown / black paint job at Inchicore.
Nos. 611 to 617 were a larger development of the earlier 601 class
locomotives. They were fitted with a Deutz F/A8L 714 engine of , with Voith hydraulic transmission, weighed and had a maximum speed of .
They went into traffic in various parts of the country, as shunting engines at smaller depots such as Dublin's North City Mills siding, and branch line duties such as between Attymon and Loughrea. Unlike the earlier 601 class, these locomotives were fitted with brake connections enabling them to work passenger trains.
They were withdrawn from service between 1967 and 1977. Nos. 611, 613, 615, 616 & 617 were sold to Cómhlucht Siúicre Éireann
(Irish Sugar Co.) in 1977. Four of these locomotives have been preserved, namely:
The 611 Class has been made as a 00 gauge
brass kit by Worsley Works Models
Steve Johnson's site also has details on kitbashing a model
Irish Railway Technology and Information -reporting on all aspects of irish railways
Downpatrick & County Down Railway Preserved G611 Class
Irish Traction Group webpage for preserved G611
Irish Traction Group webpage for preserved G616
Irish Traction Group webpage for preserved G617