As his two serviceable Wirraways had no bomb racks , this left only the one remaining Hudson with which to execute the order ; it duly took off to search for the enemy ships .
Was unable to locate Wirraways by nightfall , and returned to base .
As his two serviceable Wirraways had no bomb racks , this left only the one remaining Hudson with which to execute the order ; it duly took off to search for the enemy ships but was unable to locate them by nightfall , and returned to base .