British Rail Class 55 (Deltic) British Rail Class 55 High‑powered diesel‑electric locomotives built 1961–62 by English Electric for East Coast expresses. Nicknamed 'Deltic' for their Napier engines; withdrawn in 1981 with several pre…
British Rail DP1 — the Prototype Deltic locomotive British Rail DP1 DP1, built by English Electric in 1955, was the demonstrator for the Deltic design. Its twin-engine, high-power layout led to British Rail's Class 55 'Deltic' production locomotive…
