MF 67

It was originally envisioned by the RATP to convert all Metro lines to rubber-tyred pneumatic operation. However, this plan was later abandoned due to high costs, which in turn, would have prolonged the service of the aging Sprague-Thomson trainsets to 80 years. Therefore, a new class of steel-wheel rolling stock was developed. During the development phase, the MF 67 was known as the MF 65.[3]

The MF 67 actually comprises seven different series; however, two series of these trains were prototypes.

• Series A (Converted to MF67D): 200 cars (40 trains) were delivered to Line 3 between 1967–1969
  • One train in this series was the Zébulon, a stainless-steel prototype that saw intermittent passenger service, last of which was on Line 9.[4] It was used as a training train for many years, until it succumbed to heavy vandalism in 2010. All cars except for one driving car were scrapped as of 2011.
• Series B (Converted to MF67A then MF67D): 6 cars were delivered in 1968 as prototype trains that never saw commercial service. Converted back to MF67A.
• Series C (Converted to MF67D): 340 cars (68 trains) delivered to Lines 3 and 7 between 1972 and 1975.
• Series CX (Converted to MF67D): 16 prototype cars that were fitted with "plug" type door openers, similar to that of the MF 77. These ran on Line 9. Converted back to normal MF67 doors and used as part of MF67D sets
• Series D: 363 new trailer cars mixed with former MF67A and MF67C motor cars that were originally deployed to Lines 3, 5, and 9 between 1973 and 1975. They now operate on Lines 3, 3bis, 10, and 12.
• Series E (now retired): 56 trains that were originally deployed to Lines 2, 7bis, and 8 between 1975 and 1976. Many trains were replaced by the MF 01 cars between 2008 and 2011, though some were displaced much earlier by the MF 88 cars to Line 10. The trains operating on Line 10 were retired between 2013 and 2016. Five trains were retained for training in the USFRT tunnel, replacing the Zebulon, but they were retired in 2017.
• Series F (now retired): 51 trains that were originally deployed to Lines 7 and 13 between 1976 and 1978. They were redeployed to Line 5. Despite being the youngest series, they have suffered from excessive wear and tear, as well as weather impacts sustained from being stored in the outdoor Bobigny depot. They were replaced by the MF 01 cars between 2011 and 2014.

• Train-sets delivered: 297 (1482 cars including 9 in reserve)
• Configuration: M+R+M+R+M (except 3bis M+R+M)
• Length: 15.145 m (49 ft 8+1⁄4 in) (all motor coach), 14.390 m (47 ft 2+9⁄16 in) (trailers)
• Maximum width: 2.40 m (7 ft 10+1⁄2 in)
• Power: 1,272 kW (1,706 hp) (12 traction motors on twin-motor bogie) or 1,080 kW (1,450 hp) (6 traction motors on single-motor bogie)
• Braking: rheostatic brake and electric brake on the series E and F
• Bogies: single or twin with pneumatic suspension on the series E and F
• Maximum speed: 80 km/h (50 mph)
• Authorized speed: 70 km/h (43 mph)
• Doors: 4 doors by vis-à-vis manual opening, opening of 1,300 mm (51+3⁄16 in)
• Air-conditioning: None

Currently, the RATP uses a string of MF-67 "Auteuil Convoy" trains (retired MF 67C trainsets from Line 2 in four car compositions), to supply the Auteuil and Vaugirard Depots, these trains are colored yellow and brown and serve as auxiliary equipment of the work of the RATP (VMI). They replaced the aging tractor variants of the Sprague-Thomson.

• 
  a MF67E and an old Sprague metro on line 2
• 
  2 Mf67F with old livery on line 5
• 
  Mf 67F on Line 7 in 1983
• 
  Left Mf67E ,right Zebulon at RATP museum
• 
  Front view of Mf67E and Zebulon (we can see on the left a Sprague series ,and on the right a Ma51 series
• 
  Mf67D at Pte des Lilas on Line 3Bis
• 
  a sight below a Mf67D(power car)
• 
  A Mf67F bogie (same in a Mf77 trains)
• 
  Interior of a renovated Mf67 on the M3
• 
  classical Interior of a Mf67
• 
  The MF 67 service train
• 
  MF 67 at Choisy metro workshops

• The information in this article is based on that in its French equivalent