Implosion methods needed to be developed for uranium in place of the wasteful gun method, and composite uranium-plutonium cores were needed now that plutonium was in short supply because of the problems with the reactors.
Der skulle udvikles implosionsmetoder til uranbomber i stedet for den uøkonomiske kanonbetode, og der var behov for blandede uran-plutonium kerner nu da der var knaphed på plutonium på grund af reaktorproblemerne.