Unspecified 4-6-0 Locomotives in India

Class BESA/HPS - Robinson (Locobase 2576)

See the original HP (Locobase 4241) for a full description of the BESA program and see Locobase 6366 for the HPS with a Schmidt superheater.

Class BESA/M (Locobase 4242)

Most data from [], a ca. 1920 Vulcan Foundry catalogue. See also Leslie S Robertson, Secretary, Report of the Locomotive Committee on Standard Locomotives for Indian Railways (London: Crosby Lockwood & Son, 2nd Ed, November 1905) and "British Engines for the Orient", Railway Times, Volume 89 (23 January 1906), pp. 42-43.

British Engineering Standards Association narrow-gauge version of the BESA Ten-Wheeler, a sort of half-scale HP. The Belpaire-boilered design came in two wheel diameters; see Locobase 14422 for the pure freight version.

Class BESA/M - 48" drivers (Locobase 14422)

Most data from [], a ca. 1920 Vulcan Foundry catalogue. See also Leslie S Robertson, Secretary, Report of the Locomotive Committee on Standard Locomotives for Indian Railways (London: Crosby Lockwood & Son, 2nd Ed, November 1905).

British Engineering Standards Association Belpaire-boilered Ten-wheeler for the metre gauge. This was the pure-freight version with otherwise identical dimensions to the 57" (1,448 mm) passenger variant shown in Locobase 4242. Given that the adhesion weight dropped even as the lower drivers generated more tractive effort, this design's factor of adhesion seems low.

Class BESA/P (Locobase 4259)

"The Work of the British Engineering Standards Association as Applied to Locomotives and Rolling Stock: The Standardization of Locomotives for Indian Railways", Locomotive Magazine, Volume XXV [25] (15 August 1919), pp. 120-123.

Taller-drivered version of the British Engineering Standards Association narrow-gauge M Ten-wheeler. Its Belpaire firebox stood proud of the relatively slender boiler. The LM reported that the original spec for this design called for single riveting in the barrel circumferential joint and the firebox casing back vertical joint. Double riveting was specified in 1910.

S. Shankar of India's National Railway Museum website -- [] -- says that Ps were originally outshopped with 54" drivers but that "[t]he Ajmer Workshops later re-built her with larger wheels of 57" dia. for use with faster and more prestigious express trains."

Class BESA/T (Locobase 20737)

Data from "The Work of the British Engineering Standards Association as Applied to Locomotives and Rolling Stock: The Standardization of Locomotives for Indian Railways", Locomotive Magazine, Volume XXV [25] (15 August 1919), pp. 120-123.

Having already designed a mixed-traffic 4-6-0 for the metre gauge (Locobase 4242), it didn't stretech the British Engineering Standards Association (BESA) remit very much to add a suburban version that shared many of the same dimensions components. Significant differences were the smaller drivers and shorter boiler, although the latter retained the Belpaire firebox over a smaller grate.