Kammala jumla mai zuwa: A ƙarshen 1939 ISTDC ta tsara manufofin sauka, kuma ta kare shi a tattaunawar Kwalejin Ma'aikata. Kwarewar aiki zai ba da shawarar gyare-gyare ga wannan manufar saukowa, amma zai zama ainihin manufar da aka yi amfani da ita a cikin
Saukowar Torch da Husky shekaru hudu bayan haka. Muhimmin siffar wannan manufofin saukowa an bayyana ta Bernard Fergusson a cikin "The Watery Maze",