Kevin J
Banned
Of course if all our colonials were working in the factories they wouldn't be available for active service. Maybe more could have been made in the Empire. Perhaps the Miles M20 in India, even the Martin-Baker MB5.Problems with that path is that it would take too long, neither country had the number of workers needed, or factories in existence and the majority of machine tools would have to come from the US anyway. (England was buying machine tools from the US to equip the shadow factories with, in addition to buying machine tools from Switzerland and Germany)