Passenger Car

No. OHa3126

OHa 31

1926 - 1966

The first steel mass-produced typical passenger car series in pre-WW2.

(O = Weight 32.5-37.5 ton, Ha = 3rd passenger class)

Most Japanese passenger cars were made from wood until 1926.
During September 1926, Sanyo lines's limited express derailment had resulted in many deaths. Most of the dead and wounded were attributed to poor wooden car bodies. As a result, the already begun production of wooden passenger car Class NaHa-23800 was rushed into a new steel design.

During March of 1927, the first steel replaced the wooden Class OHa-44400 3rd class passenger car. The 512 OHa-44400s were manufactured up to 1929, and it was in widespread use all over the country.
OHa-44400 was renamed the Class OHa-32000 from class name revision during October 1928.
During 1941, it was again renamed to the Class OHa-31 No.1-510 with the exception of two cars which were accident damaged.

Class OHa-31 based Passenger Car Series-31 were converted for 2nd class passenger car use (present Green Car class), including the Dining car, Luggage car and Sleeping car models. Finally, these Series-31s had over 1,000 cars produced and it became the typical passenger car series in pre-WW2.
However, larger sized Series-32 and 35 appeared. OHa-31s rapidly lost their prominence during the early years after the war. Lastly, all of the OHa-31s were retired by December 1966 from JNR's railroad scene.

OHa-31 Oito line's local train with C56-114
During Apr 1959
(Photo credit to S.Sumino)

One class of Series-31
SuE30-50 (ex-SuNi30-41)
Hachioji depot, during Oct 1969.

Preserved car OHa-31 No.26 (1926 - 1983)

After WW2, more than ten OHa-31s, were sold to private railway companys.
Three OHa-31s No.26, 51 and 75 were sold to the Tsugaru-Tetsudo Co. in Aomori prefecture, and they were named the Tsugaru-Tetsudo's OHa-31 No.1, 2 and 3.

During 1983, they were retired from the Tsugaru-Tetsudo. Of these OHa-31s, No.1 (ex OHa31-26) was preserved at Ashino Park in Kanagi town, Aomori prefecture after 1985.
During July 2007, OHa31-1 was donated to the JNR because of its historic value. And she was transferred to the JR-East Omiya General Rolling Stock Center for remaking.

OHa31-26 Potbelly Stove
During October 2007, OHa31-1 was restored to OHa31-26's original shape and was exhibited at the Museum.
While OHa31-1 was active on the Tsugaru-Tetsudo, a "Potbelly Stove" was utilized by the car. It was called the "Stove Train" and was a common sight on the Tsugaru Aomori's beautiful local railway scene in the winter. This stove remained at the time of OHa31-1's remaking, and it can be seen at the Museum.
In addition, Tsugaru-Tetsudo's stove train was continuously serviced during the winter season (1st Dec - 31st Mar) by other stove cars.

The years of Ashino Park in Aomori

The Inscription of the OHa31-1 displayed at Ashino Park in Aomori during the year of 1987, reads as follows ;

The origin of OHa-311

Builder ; Kisha Corporation (Tokyo workshops)
Year of manufacture ; 1927
Class ; OHa-31
Original JNR Number ; OHa31-26
Maximum length ; 17000 millimeters
Width ; 2900 mm
Height ; 3925 mm
Weight ; 29.5 tons
Passenger capacity ; 80
This passenger car was active on the JNR at Asahikawa in Hokkaido as a stove train.
(This stove was of the Potbelly type). During November 1961, it was sold from JNR with two sister cars. For 22 years, it ran on the Tsugaru's northern moor, as the familiar stove train for our company, as a second generation small passenger car during our opening years. It has been preserved at the request of a devotee.
Tugaru Tetsudo Co. Ltd.


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