The LSWR H16 class were five 4-6-2 tank locomotives designed by Robert Urie

Robert Urie

Robert Wallace Urie was a Scottish locomotive engineer who was the last chief mechanical engineer of the London and South Western Railway....

 for the London and South Western Railway

London and South Western Railway

The London and South Western Railway was a railway company in England from 1838 to 1922. Its network extended from London to Plymouth via Salisbury and Exeter, with branches to Ilfracombe and Padstow and via Southampton to Bournemouth and Weymouth. It also had many routes connecting towns in...

 (LSWR) in 1921–1922.

Background

As part of the project to construct a marshalling yard at Feltham, Urie produced two locomotive designs, the G16

LSWR G16 class

The LSWR G16 class is a steam tank locomotive class of 4-8-0T wheel arrangement. It was designed by Robert Urie and introduced in 1921 specifically for heavy shunting over humps at Feltham marshalling yard, on the London and South Western Railway...

 “Black Tanks” to shunt the new yard, and the H16 “Green Tanks” to work transfer freights to the London area yards of the other railway companies.

Construction history

Year	Order	Quantity	LSWR numbers	Notes
1921–22	H16	5	516–520

LSWR and Southern Railway

When originally built they were numbered 516–520. On passing to the Southern Railway

Southern Railway (Great Britain)

The Southern Railway was a British railway company established in the 1923 Grouping. It linked London with the Channel ports, South West England, South coast resorts and Kent...

, they had their LSWR numbers prefixed with an ‘E’. The locomotives lost the prefix between 1931–32. The Southern Railway painted the H16 class in passenger green paint, rather than goods engine black.

Post-1948 (nationalisation)

All five engines were passed to British Railway who renumbered them 30516–30520. All were withdrawn in 1962, and scrapped.