Alco RS11 DL701 Demonstrator

American Locomotive Company Alco RS11 DL701, location and date unknown. Photographer: Alco Products, Inc.
American Locomotive Company Alco RS11 DL701B, location and date unknown. Photographer: Alco Products, Inc.

Alco RS11 DL701

  • Group: Alco DL701-DL701B
  • Builder number: Alco 84156
  • Builder date: February, 1956
  • Phase: Ia
  • Horsepower: 1800
  • Weight: 262,460 lbs
  • Prime mover: Turbocharged Alco V-12 251B
  • Main generator: General Electric GT581
  • Traction motors: Four General Electric 752
  • Production: 356 units built between February, 1956, and June, 1961
  • Alco Demonstrators: 3 units

Alco DL701 > Southern Pacific 5720 > Southern Pacific 2900

Built as Alco DL701B in February, 1956, one of three RS11 demonstrors. It became Southern Pacific 5722 on June 20, 1956. It became Southern Pacific 2900 in the 1965 general renumbering, was retired September 19, 1974, and sold to Chrome Crankshaft on December 11, 1975. It was scrapped by Proler Steel.

Of the three demonstrators, only DL701B had a steam generator, but the other two units were equipped with boiler controls and pass through steam lines. All three units were built with the long hood forward, the only Southern Pacific RS11’s set up this way.

About This Image

Scanned from a 616 negative owned by Digital Rail Artist.

Reference

  • Joseph A. Strapac, Southern Pacific Diesel Locomotive Compendium, Volume 1: Pre-1966 SP Numbers T&NO and Cotton Belt Subsidiary Roads, Shade Tree Books, 2004, pg 72
  • Joseph A. Strapac, Southern Pacific Diesel Locomotive Compendium, Volume 2: SP-Cotton Belt Numbers From 1965 to 1996 Union Pacific Transition, Shade Tree Books, 2007, pg 73