HUDC 9100 series C-Flyer
Data (as of 1 Sep 2026)
| Status: | Least Concern |
| Constructed in: | 1994, 2000 |
| Number built: | 24 |
| Registered: | 24 |
History
The 9100 series is based on Keisei 3700 series, though looks very different. Two eight-carriage units were introduced when the Hokuso Line (the segment formerly called the Chiba Newtown Line) was extended from Chiba Newtown Chuo to Inzai-Makinohara. Another unit entered service in 2000 when the Line was extended again to Imba-nihon-idai.
The series is called C-Flyer, and C stands for Chiba-Newtown, Comfortable, Clean and Culture. Each unit had payphones until 1997 despite being a commuter train, but they could not be used while the train was running the Asakusa Line (underground).
When HUDC was reorganised to Urban Renaissance Agency in 2004, a new company Chiba Newtown Railway was established. The new company succeeded all rolling stock, tracks and other facilities, but the 9100 series trains have still been managed by Hokuso.
Current Operations & Future Prospects
The 9100 series runs the Hokuso Line between Keisei-Takasago and Imba nihon-idai, as well as through-services to Keisei, Toei (Asakusa Line) and Keikyu as far as Nishi-magome or Haneda Airport.