2xMD870 engines, 2xMekydro K184 transmissions
RENFE "Talgo II" (1T class, later 350 class)
2xMD325 engines
2xMD650 engines, 2xMekydro K104
2xMD655B engines, 2xMekydro K184
In the early 1960's Spanish Railways (RENFE), ordered ten locomotives from Krauss Maffei to haul their prestigious "Talgo" trainsets. The reason for this was that the "Talgo" was a very low centre of gravity lightweight vehicle and at that time no other European manufacturer could produce a locomotive of sufficiently high power that could fit into a body of similar overall dimensions to the "Talgo" coaches. The original four diesel-electric "Talgo" loco's were built by the American Car Foundry in America in 1950 to complement the "Talgo" coaching sets also produced by ACF. The ACF loco's were refurbished in the 1960's to work modern "Talgo" sets and were re-engined with 2xMD325's rated at 525hp each. These loco's were originally numbered 1T-4T, then became class 350 under computerisation. There are a couple of pictures of the ACF demonstrator "Talgo" set when it was in the US in the early 1950's. This set was sold to RENFE, regauged and allocated the number 4T. These are on the forth and fifth lines down from the top, along with a picture of the NYC Train X:
http://www.northeast.railfan.net/diesel38.html
The first Krauss-Maffei loco's were originally classed as 2000T and later class 352 under the RENFE computerisation scheme. These were mechanically identical to the V200 (apart from the gauge and bodywork), being fitted with MD650 engines and K104 transmissions. These locomotives were rated at 2400hp. In the late 1960's a further batch of five more powerful "Talgo" locos were delivered, this time based on the V200.1, although again to a low slung profile. These were fitted with 2xMD655's driving into 2xK184 transmissions and were rated at 3000hp. Two of the loco's were provided with standard gauge bogies so that they could work the "Talgo" overnight sleeper trains to Paris from the French border. These locos were classed as 3000T and then 353 under computerisation. The 350, 352 & 353 all have a donkey engine to provide power for the air conditioning of the "Talgo" train sets. For the sake of completeness there was a final build of "Talgo" loco's in 1982 though these were fitted with 16 cylinder MTU 396 engines and Voith L520rU transmissions. These were RENFE class 354.
Follow the link for a good picture of how the 352's look in the twilight of their careers. Originally they had two single piece wrap round windscreens without air conditioned cabs. In the late 1980's the locomotives had the cabs refurbished with the windscreen arrangement shown. The air conditioning unit is the large box on the roof:
http://www.cuerpo8.es/STOL/catalogo/catactual/352.html
The 352's were all finally stopped at the end of May 2002. It is possible that the survivors will be preserved in a complete form, as opposed to the fate that befell 352 005 which has a single cab displayed in the Vilanova Museum.
In 1968 the first of 10 4000hp locomotives were delivered to RENFE from Krauss-Maffei. A total of 32 were built, the last 22 being constructed in Spain by Babcock & Wilcox. These locomotives are outwardly almost identical to the V200.1 (non Maybach) locomotives delivered to DB but were fitted with 2xMD870 engines set to 2000hp each. These were originally numbered 4001-4032, then 340 001 - 032 under computerisation. All were withdrawn by 1993. Two survive in preservation, 340 020 (4020, at top of page) in the Spanish National Railway Museum in Madrid, and 340 026 (4026) at Zaragoza by an organisation called Azaft. The status of this locomotive is shown as "apartada" on the Spanish language "Listado del material motor ferraviario Espnańol" website which also has a small amount of information about the 340's and the Talgo locomotives, plus pictures. As far as I can make out "apartada" means "separated" - presumably this means the locomotive is dismantled but still extant. There is also a list with the latest disposition of the 350, 352 & 353 locomotives [July 2004] which I shall translate into English and post up here.
In the meantime, the official "Talgo" website has some very interesting information, click on "Evolution" for some interesting facts and pictures. The "Maybach Era" history peters out after about 1987.