The trains entered service on the day express services to both Trondheim and Bergen later that year, with NSB branding the services as Dovreekspressen and Bergensekspressen, respectively. They proved popular with the public, allowing for faster travel times from the capital to Norway's second and third largest cities. Due to running through scenic mountainous areas, the services were popular with tourists. However, the trains had poor driving properties, especially at higher speeds and through curves. This was partially evaded through the installation of hydraulic suspension in the bogies.
