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KR Models KRM-HUN-OO-R-73

Hunslet Bo-Bo in Delivery Green No.73 Diesel Locomotive

Manufacturer catalogue image - please note that pre-release images may be CAD renders or CGI images rather than photographs

Prototype Eras
Era 7 (1972 to 1982) British Rail Blue (TOPS)
Era 8 (1983 to 1994) British Rail Sectorisation
Era 9 (1995 to 2004) Initial Privatisation
Era 10 (2005 to 2015) Rebuilding of the Railways
Era 11 (2016 to 2026) The Last Days of Privatisation

Manufacturer description

The Scunthorpe Hunslet Bo-Bo

In the 1960s British Steel planned the multi-million-pound refurbishment of the Scunthorpe steelworks site known as the Anchor Project, of which work began in the 1970s. Part of the project was a fleet of new locomotives to take molten iron in “torpedo” wagons to the BOS (Basic Oxygen Steelmaking plant), These powerful locomotives were to be designed and built by the Hunslet engine company.

Work began on the 10 locomotives in 1972 and was completed by the end of 1973, numbered 70-79 (Works numbers 7281-7290) with one more joining them, number 80 (WN 7474) in 1977. Built with two Rolls DV8 engines, these locomotives became the iron hauliers of Scunthorpe. In 1990 they were re-engined with two Perkins CV12s and fitted with remote control operation as part of the project to continuously improve the site. In more recent years, two locomotives (No.77 and 78) have been scrapped.

Number 79 was later rebuilt as number 30 and fitted with a new style control system in the 2000s and named “Fusion”. Most recently a new overhaul project began in 2015 with 72 and 73 the first to receive this treatment to assure the fleets’ use in years to come.

Written by Andrew Plumtree, Publicity
Officer, Appleby Frodingham Railway Preservation Society.

Catalogue listing

Model details

Prototype information

KR Models Hunslet Bo‑Bo in Delivery Green No 73 is a 00‑scale diesel locomotive kit. It carries the DCC designation DCC 21 and is listed under the manufacturer part number KRM‑HUN‑OO‑R‑73. The model represents a British Rail sector‑isation era locomotive.

The prototype was one of a fleet built by the Hunslet Engine Company for the British Steel Anchor Project at Scunthorpe. Work on the first ten units began in early 1972 and was completed by the end of 1973, with numbers 70‑79 (works numbers 7281‑7290). A further locomotive, number 80, was added in 1977 (works number 7474). The original machines were powered by twin Rolls DV8 engines and were used to haul molten‑iron torpedo wagons to the basic‑oxygen steelmaking plant. In 1990 they were re‑engined with twin Perkins CV12 engines and fitted with remote‑control equipment. Two members of the class, numbers 77 and 78, have since been scrapped.

Number 79 was later rebuilt as number 30, received a modern control system and was named “Fusion”. An overhaul programme commenced in 2015, with locomotives 72 and 73 being the first to undergo the work to extend the fleet’s operational life. The information is drawn from a description prepared by Andrew Plumtree, Publicity Officer of the Appleby Frodingham Railway Preservation Society.