Three LST (2) were converted into British "Fighter Direction Tenders" (FDT), swapping their landing craft for Motor Launches and outfitted with AMES Type 11 and Type 15 fighter control radar to provide Ground-controlled interception (GCI) coverage for air defence of the D-Day landing areas. Of these ships, HMS "FDT 216" was stationed off Omaha and Utah beaches, HMS "FDT 217" was allocated Sword, Juno, and Gold beaches. HMS "FDT 13" was used for coverage of the overall main shipping channel. In the period 6 June to 26 June Allied fighters controlled by the FDTs resulted in the destruction of 52 enemy aircraft by day, and 24 enemy aircraft by night.