231 PO 3722 - 3731
Also known as:
4-231 H 722 - 731
Vehicle type:
Registration country:
1934
Following the first “Chapelon first-type” transformations, which
gave rise to the 231 PO 3701 - 3721 series, a second
batch of locomotives from the 231 PO 3521 -
3550 series was modernized in 1934 and are registered
as 231 PO 3722 - 3731. These rebuilds became known
as the “Chapelon second-type” transformations.
Within this series, locomotive 231-726 was fitted with streamlining and received further modifications to the steam passage cross-sections, enabling it to reach speeds of up to 200 km/h.
Within this series, locomotive 231-726 was fitted with streamlining and received further modifications to the steam passage cross-sections, enabling it to reach speeds of up to 200 km/h.
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Latest update on the 4th of January 2026 at 12:00
Contributor(s): Tudor C.
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