MU sleeping car ACME

Fiat MU No. 4766 sleeping car

Photo M. Van der Linden on railfaneurope.net.

ACME 55200


CIWL MU 1964 Type sleeping car

UIC number ex-CIWL Rev. date
61 87 72-81 704-4 4704 15.6.72
SNCF management.
71 83 72-80 575-1 4762 23.11.72
FS management. Pool TEN.
71 85 72-80 592-4 4779 21.4.72
SBB management. Pool TEN.

Resp. 174, 169, 172g; 139 to 142 g after removing the ballast (NEM: 121 to 158g)

As on previous MU ACME, the roof is moulded with the body. The scale is almost perfectly respected. The three coaches have specific details (length of the handrails, heating cable housing, various grids, etc.)

The height is consistent. On the other hand, the mass is a little too heavy.

Steps and CIWL badges are in photoetched metal. The compartments are in night position, the ladders are in place, but not correctly positioned according to Dirk Frielingsdorf on wagonslits.de. Some (blue) blinds are more or less lowered. The little FIAT car handles are to be mounted, and it’s a little tricky… The buffers are on spring, and, of course, they get askew…

On the FIAT car, the Y24L bogie wheelbase is marked 2.3 m, whereas it is actually 2.5 m (however, this dimension is well respected on the model).

The bogies are equipped with current pickup strips rubbing on the axles, which makes the rolling quality rather random; the Y24L bogies are equipped with brass bearings, while the Minden are not. The wheels have a correct diameter of 11.0 mm, but their spacing is a little low compared to the NEM 310 standard (14.3 instead of 14.5 ±0.1). Flange height: 0.8 mm. Axle length: 24.3 mm.



  • NEM boxes shortened by 1.5 mm to suppress the gap between the coaches.
  • Ballast (30 g) deleted.
  • Bed ladders correctly re-positioned in front of the windows on the Brissonneau and FIAT coaches. See pictures: before, during, after.MU Brissonneau, ladders before re-positioningMU Brissonneau, ladders during re-positioningMU Brissonneau, ladders after re-positioning
  • Brissonneau coach fitted with connectors for removable tail lamps. See the pages on this subject.

MU coaches concerned, not air-conditioned:

  • CIWL No. 4701 to 4740: built in 1964 by Brissonneau & Lotz; they are mounted on L bogies, extrapolated from Y24 SNCF bogies, but with a wheelbase increased from 2.3 to 2.5 m, except for the last four mounted on M3 bogies;
  • CIWL No. 4761 to 4775: built in 1964-1965 by FIAT Materiale Ferroviario, mounted on L bogies;
  • CIWL No. 4776 to 4790: built in 1964 by Waggon- und Maschinenbau GmbH Donauwörth (WMD), mounted on Minden-Deutz type M4 bogies.

Note: coaches 4741 to 4760, also built by FIAT, and similar to the 4761 to 4775, are of type M (only two beds per compartment) and are air conditioned.


Brissonneau ACME MU Sleeping carBrissonneau ACME MU Sleeping car

FIAT ACME MU Sleeping carFIAT ACME MU Sleeping car

WMD ACME MU Sleeping carWMD ACME MU Sleeping car

Fiat MU No. 4766 sleeping car

Coach ex-4766, Brussels-South, July 1980.
Photo M. Van der Linden on railfaneurope.net.

26 400 303.4 304.5
26 100 299.1 299.5
25 100 288.5 289.0
2 820 32.4 32.8
4 260 49.0 48.9
19 000 218.4 218.7
Bogie L wheelbase 2 500 28.7 28.5
Bogie M wheelbase 2 500 28.7 28.2
960 11.0 11.0