sentences:  Orange Herald Large was designed as device which would have the most certainty to give a yield in the megaton range.However, due to its size it was not suited as a warhead for the ballistic missile and was more of an insurance which could be used if other devices failed to achieve the desired yield.The Orange Herald Small version was tested once, yielding 720 kt of explosive power on 31 May 1957, during the Grapple 2/Orange Herald tests on Malden Island in the Pacific.