フラワー級コルベット
At a meeting on 11 February 1941, the prototype order at Eastney was increased with another 12 units, and an order for 100 production sets was placed with Allen West and Company. At the same meeting, the newly completed Flower-class corvette HMS "Orchis" was set aside for sea trials. The first batch of prototypes had been completed by the end of February 1941, which led to a follow-on order for another 150 sets.