It's been three months, and I finally decided to do something. Using http://www.thedieselshop.us/GEMOD.HTML I find that U33Cs were built between 2/68 and 1/75. U36Cs were built between 10/71 and 3/75. By 4/70, when SOU 3807 was made, the fairing was gone: http://www.rr-fallenflags.org/sout/sou3807ags.jpg Thus, assuming the body style was consistent between the two, no U36Cs were built new with the fairing.
Triplex you rock. On Southern Pacific the fairing disappeared with the March 1969 deliveries of U33Cs. This is during the first delivery of Espee U33Cs #8600-8629. For example the #8618 had the fairing and the #8621 did not. See Southern Pacific Motive Power Annual 1971 by Joe Strapac p. 24. This was the GE issue. I would expect the radiator fairing disappeared on other GE U33C deliveries at about the same time.
Make a Model Well, well, then! :lightbulb: Looks like a nice model of the U30C, U33C, U36C, U30CG, etc., etc. could be placed on the same mechanism? BTW, SP had 233 U33Cs. Or about that many.
So, how does this info corrispond to Robbman's statement that SP had the first U36Cs as uprated U33Cs? It sounds like those are not considered to be U36Cs? So Boxcab's statement is correct? I can't find anythign coroberating Robbman's assertion about the SP units though, but I haven't had a chance to look very hard.
Who in the world cares what the designation number is for any engine? How many units have you got and what's the rate of pay? That's the most important thing. Let's just get this train over the road.
It doesn't matter if you call an SD45 rebuilt with a 3000 hp engine and more advanced electronics an SD45, SD40-2, SD40M-2 or SD40-3. It's functionally like an SD40-2. However, some designations have more consistent meaning. You care whether you have 3300 or 3600 horsepower in your engine.
