Here is a little more background information about Romanian railways (CFR) in periods IV and V (1970 to 2000)
CFR went though a very rapid modernization in the 1970's. By 1980 steam has virtually phased out, diesel locomotives were ubiquitous and a good portion of the main lines were electrified (25 kV, 50 Hz AC). At the time, railways were the main transportation mode for both passengers and freight. CFR had relatively few kinds of rolling stock, and this was compensated by large numbers.
The main locomotives were:
- 040/041/042 series (formerly EA/EA1/EA2 series) 6-axle electrical locomotives (axle formula Co'-Co') had a maximum power of 5,100 kW (~7,400 HP). The first nine units were made in Sweden by ASEA the following about 1100 units were built in Romania under licence. The three types were identical except the maximum allowable speed: 120, 160 and 200 km/h respectively. They were used in passenger and freight service on all electrified lines. They were equipped with electrical train heating.
043/044 series (formerly EC/EC1 series) 4-axle electrical locomotives (axle formula Bo'-Bo') had a maximum power of 3,400 kW. The approximately 150 units were built in Yugoslavia under ASEA licence. They shared the same technical platform as the 040 6-axle series and they looked as shortened versions of the above. The 043/044 series were identical except the maximum allowable speed: 120 and 160 km/h respectively. They were used in passenger service on some electrified lines. They were equipped with electrical train heating.
060/061 series (formerly DA/DA1 series) 6-axle diesel electrical locomotives (axle formula Co'-Co') had a maximum power of 2,100 HP. The first six units were built in Switzerland by joint venture between Brown-Boveri and SLM Wintherthur. The following ~1400 units were built in Romania for CFR, with another 1000 units for export to Bulgaria, China and Poland. The 60/61 series are identical except the maximum allowable speed: 100 and 120 km/h respectively. They were/are used in passenger and freight service on all non-electrified main lines. They lacked train heating and needed a steam generating car to heat passenger trains.
80 series (formerly DHC series) 4-axle diesel hydraulic locomotives (axle formula B'-B') has a maximum power of 1,250 HP and a maximum speed of 100 km/h. They were built in Romania and hauled passenger and freight train on secondary lines and were ubiquitous in shunting operations. They had steam train heating.
These four types covered the vast majority of duty on the network. Other locomotive series had limited use. You can find a complete list of locomotive series on English Wikipedia here http://en.wikipedia.org/wiki/Caile_Fera ... _and_stock
Unfortunately, as Marquette mentioned, no manufacturers make TT scale models of any of these locomotives. 3D printer, anyone?
I will follow up with a few more articles about passenger and freight cars.