The trains will be 8 cars long, with a design speed of 400 km/h, and a maximum operational speed of 360 km/h.They will be branded as 'Bely Krechet' (white gyrfalcon) trains, alongside other Russian train designs named after birds.
The trains will be composed of 8 or 16 cars, with 4 classes of seating and a bistro car. 8 car trains will have 454 seats (21 first, 68 business, 135 standard, and 230 'comfort' seats). Designs are to be finalised by Q1 2026, with the first prototype built by 2027, and certified by 2028.