Ralph

   Ralph  Ralph, previously Ralph Sadler, after the Snowdon Mountain Railway's consulting engineer, from 1964 to 1977, and Aylwin from 1977 until October 1978, is an engine on the Snowdon Mountain Railway. Alaric is based on Ralph. Ralph was manufactured by the Swiss Locomotive and Machine Works at Wintherthur, Switzerland in 1923.
 * Number: 7
 * Built: 1923
 * Configuration: 0-4-2T