The Ships of Exercise Tiger

In the early hours of that morning, Convoy T-4 was attacked by German E-boats in Lyme Bay, while Allied forces were carrying out a large-scale rehearsal for the forthcoming Normandy landings. The convoy comprised eight American Landing Ships, Tank (LSTs), escorted by the Royal Navy corvette HMS Azalea (K25). Two of the LSTs, USS LST-507 and USS LST-531, were sunk, while USS LST-289 was severely damaged. More than 630 American servicemen lost their lives.¹

This section brings together the individual histories of the ships connected with Exercise Tiger, Convoy T-4 and the 28th April 1944 E-boat attack. Each ship had its own crew, commanding officers, construction history and wartime career, and each played a different part in the events that unfolded off the Devon coast.

The LSTs of Convoy T-4

The eight American landing ships were:

• USS LST-58
• USS LST-289
• USS LST-496
• USS LST-499
• USS LST-507
• USS LST-511
• USS LST-515
• USS LST-531

These ships were built to perform a vital task in amphibious warfare: carrying troops, vehicles, fuel, equipment and supplies directly towards an invasion beach. The LSTs involved in Exercise Tiger were therefore not simply transport ships; they were an important part of the enormous logistical system being assembled for the invasion of Normandy.²

For several of the ships, the night of 27th–28th April 1944 became the defining event of their short wartime careers. The individual pages in this section examine their construction, commissioning, commanders, crews, wartime movements, cargoes and, where applicable, their fate during the Exercise Tiger attack.

HMS Azalea (K25)

Alongside the American LSTs was HMS Azalea (K25), a Flower-class corvette of the Royal Navy.

Built at Cook, Welton & Gemmell in Beverley, Yorkshire, Azalea was laid down in November 1939, launched in July 1940 and commissioned in January 1941. She spent much of the war performing convoy escort and anti-submarine duties in the Atlantic and Mediterranean theatres before becoming the sole escort accompanying Convoy T-4 when the intended second escort, HMS Scimitar, was unable to continue.³

Her story provides an important British perspective on the Exercise Tiger disaster, including the problems of communications, escort arrangements and the decisions faced by her commanding officer during the German attack.

More than names and numbers

A ship’s history is ultimately a human history.

Behind every pennant number were officers and ratings, soldiers and sailors, engineers, signallers, medical personnel and support troops. The LSTs carried men and equipment required for the invasion, while Azalea’s crew were responsible for protecting the convoy.

The individual ship pages therefore go beyond basic specifications. Where the evidence allows, they bring together official naval records, contemporary reports, convoy records, archival documents, photographs and personal recollections. The aim is to show not only where each vessel was and what happened to it, but also something of the people who served aboard her.

A source-led history

The historical record of Exercise Tiger is spread across many different collections. Contemporary military reports, naval records, survivor statements, photographs, newspapers, family collections and later historical research each contribute a different part of the story.⁴

Where possible, information on these pages is referenced to the underlying source, and the nature of the evidence is made clear. A wartime report is distinguished from a later historical reconstruction; a survivor’s recollection is identified as a recollection rather than presented as an unquestionable contemporary record.

This approach is particularly important when examining the events of 28th April 1944. Some details can be established from contemporary documentation, while other aspects of the night remain the subject of differing accounts or later interpretation.

Our aim is not simply to repeat a familiar version of the Exercise Tiger story, but to make the available evidence accessible and to show how the history has been reconstructed.

Explore the ships

Use the links below to explore the individual histories of the vessels involved in Exercise Tiger and Convoy T-4.

From the American LSTs preparing to carry men and equipment towards the simulated Normandy beaches, to HMS Azalea, the Royal Navy corvette assigned to escort them, each ship provides another perspective on one of the most tragic episodes in the preparation for D-Day.

The ships were different. Their crews were different. Their individual stories were different. Together, they form an essential part of the history of Exercise Tiger.