HMS Calendula (K28)
 HMS Calendula was a Flower-class corvette built for the Royal Navy during the Second World War and was in service in the Battle of the Atlantic.In 1942 she was transferred to the United States Navy as part of the reverse Lend Lease arrangement and renamed USS Ready one of the Temptress-class gunboats.With the end of hostilities she was returned to the Royal Navy and sold into merchantile service.