21C151 Winston Churchill is a Southern Railway Battle of Britain class 4-6-2 Pacific steam locomotive that has been preserved as part of the United Kingdom's National Collection.

It was first allocated to Salisbury locomotive shed for services on the West of England Main Line between London and Exeter.

The former prime minister, by then Leader of the Opposition, was offered the chance to name the locomotive, but turned it down, claiming a prior engagement.

Its opportunities to wander the network of branchlines west of Exeter known as 'The Withered Arm', were cut short when its allocation was changed to Salisbury only two months later.

At its next General, six years later, it was fitted with a speedometer and Automatic Warning System apparatus, and tender 3316 had its cosmetic high-sides removed.

His state funeral on 30 January 1965 saw his coffin process up the River Thames on the MV Havengore before being transferred to Waterloo Station.

The headcode used while pulling the special was one disc on each side of the locomotive's smokebox, and a third in the middle of the bufferbeam—a 'V' formation evoking Churchill's 'V for Victory' sign.

[1] After hauling Churchill's funeral train, 34051 was earmarked for preservation, so in November 1965, 34051 was moved to Hellifield for storage.

[citation needed] All six cars used in Churchill's funeral train survive in preservation,[6][7] with two Pullmans and the hearse van having spent several years in the United States.