The overnight local train "Hayatama" operated on a 502.1 km route between Nagoya and Tennoji, passing through Kansai Main Line, Kisei Main Line, and Hanwa Line. Known for its B sleeper cars, this train was designated with a nickname to be compatible with the MARUS system, a ticket reservation and issuing system from the JNR era. Initially called "Nanki" when it began operations in 1959, the name was transferred to a diesel express train, and in the 1978 revision, it was renamed "Hayatama". The train was composed of old model passenger cars from the Ryuhwa Passenger and Freight Division, models 43 and 35, and lighter 10 series passenger cars, including 10 series sleeper cars from the Shingu Operations Division. Additionally, mail and baggage cars were also connected. A distinctive feature was the upward 924 train departing from Tennoji, which included a passenger car originating from Wakayama City on the Kisei Main Line, with coupling works taking place in Wakayama.
- A model product is created based on a train formation consisting of vehicles from the Ryuge Passenger and Freight Depot, Shingu Driving Depot, and Kameyama Passenger and Freight Depot around 1980 (Showa 55).
- The ventilators on the NAHA 10 and NAHAFU 10 are represented as separate parts.
- The body color of the Suini 61 is rendered in Grape Color No. 2, while other cars are in Blue No. 15. Roof colors are differentiated with shades of gray depending on the car.
- The H-rubber on all cars is reproduced in gray.
- The couplers of each car are shown in the set configuration diagram.
- The tail lights (with red LEDs) are functional on the OHAFU 33 112, SUYUNI 61, NAHAFU 10, and OHANEFU 12. All cars, except for the Ohanefu 12, are equipped with switches to turn off the lights.
- Pre-printed destination signs are included. Destination signs read as follows:
OHAFU 33 112: "Kameyama-bound"
OHAFU 33, OHA 46, NAHA 10, NAHAFU 10: "Tennoji ⇔ Nagoya"
OHANE 12, OHANEFU 12: "Tennoji ⇔ Shingu" Stickers are included with "Shingu-bound" destination signs and "B sleeper" labels.
- Includes number plates ("153" and "195") for the late-model DD13 locomotive used to pull passenger cars between Wakayama City and Wakayama.
*This set does not include a motor car.
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