

ZekTheKid wrote:If I'm correct,the U-boats don't have the slightly flared radiators like a B36-7?
_o_OOOO_oo-Kanawha wrote:ZekTheKid wrote:If I'm correct,the U-boats don't have the slightly flared radiators like a B36-7?
Correct, greater power meant a larger radiator was needed.
Here is some info on GE locomotive carbody "phases" : http://trainiax.net/mephase-geub.php
or here: http://www.trainweb.org/jaydeet/u30b.htm
_o_OOOO_oo-Kanawha wrote:
From the article you linked:
"The GE U30C was one of the earliest successes from General Electric in the diesel market. With 600 units sold, the U30C proved to be a viable alternative for customers who were unable to purchase SD40s or SD40-2s from Electro-Motive Diesel (EMD).
Was that because of GE having easier/better lease conditions? I thought both GE and EMD were aggressively pursuing locomotive orders, with favourable trade in options etc.
That's how WP ended up with GE U30B's on trucks traded in from worn out FT and F3 units. A wrong choice it proved, as the bigger GE traction motors barely fitted and WP's decision to maximise locomotive weight using extra ballast meant larger axle boxes needed to be used which had to be shoehorned into the Blomberg frames. The leased U30B's were retired from the roster as soon as the lease expired.

JerryC wrote:Exactly. The U28B and C were dogs as far as sales and not very reliable to boot. The U30 may have been GE's last effort at locomotive building had it not been for the EMD SD40. GM could not fill orders for it quick enough, so there was a large backlog. Railroads needing new power were forced to look elsewhere if the need was immediate, so being that the U30 was the current model, they were the logical choice.
As for the carbodies, I think GE was caught by surprise by sales of the U30. At first it was a simple turbocharger tweak to the U28 for another 200hp, so there was no need to change the body style. As sales picked up though, equipment changed and the body went through it's phases. By the time the units ended production in 1976, they were only a radiator flare away from being a C30-7.
JerryC wrote:I hear and read a lot that U-boats were unreliable. I even have personal experience with the recalcitrant (and rectifer dead) U30C that I recorded sounds from. But I guess the proof is in the prototype. There about five U30's left in actual day-to-day railroad operations, but you see SD40-2's all over the place on a daily basis. Then again, the SD40's sold a lot more units.


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