EMC AA explained

EMC AA
Powertype:Diesel-electric
Builder:General Motors Corporation (EMC/GM)
Builddate:August 1940
Totalproduction:1
Aarwheels:A1A-3
Locoweight:2473401NaN1
Weightondrivers:977001NaN1
Fuelcap:1200usgal
Primemover:EMC 12-567
Enginetype:V12 diesel
Cylindercount:12
Maxspeed:98mph
Poweroutput:1000hp
Tractiveeffort:244252NaN2 at 34mph
Operator:Missouri Pacific Railroad
Fleetnumbers:7100
Retiredate:1962
Disposition:Scrapped

AA was a designator used for several different diesel locomotive types custom built by General Motors Corporation EMC/GM with passenger or baggage space in the same body. This locomotive is listed as class AA-6[1] by R. Craig, and the designation is logical as the locomotive is described as "half an E6" in the Second Diesel Spotter's Guide.[2]

One such was a single locomotive built for the Missouri Pacific Railroad, delivered in August 1940, numbered #7100. MP 7100 was built for service with the Delta Eagle passenger train, which ran between Memphis, Tennessee and Tallulah, Louisiana. Note: Missouri Pacific ordered all their 'E' units with portholes instead of square windows like most of the E series from the EA to E7's. This was the only MoPac unit with square windows (on the baggage door).

Since the two-car train the unit would have to haul was comparatively light, the AA was built with only one 1,000 hp EMD 567 V12 prime mover, and a baggage compartment where the second diesel would have been.

Other EMC/GM locomotives carrying the AA classification include the Pioneer Zephyr, Flying Yankee, and General Pershing Zephyr power units.

External links

References

Notes and References

  1. Web site: Missouri Pacific All-Time Diesel Summary. The Diesel Shop. R.. Craig.
  2. Book: Pinkepank, Jerry A.. 1973. The Second Diesel Spotter's Guide. Milwaukee, Wisconsin. Kalmbach Publishing Co.. EMD-122. 0-89024-026-4.