TT4031B GWR Mk3 Trailer Standard Open 42351 Books The small SV1 has a

The small SV1 has a 3 pin Servo connector to enable a standard servo to be plugged in

• Light bar ready

This single track Tunnel Mouth is 133mm wide x 108mm high

HEIGHT 26mm

1 clamping rubber

TT4031B GWR Mk3 Trailer Standard Open 42351 Books The small SV1 has aIn order to allow running at 125 mph on Britain's Victorian era railways, new rolling stock was needed by British Railways. Significant improvements over the Mk2 included new secondary air suspension between the bogies and the coach body as well as aerodynamic skirting on the underframe. Mk3 coaches are 75ft (23m) long, enabling far greater capacity than older coaches. Mk3 coaches also incorporate disk brakes and wheel slip protection enabling faster