John Thornycroft was not the only supplier of torpedo boats, but his influence was so big that the Encyclopedia of Ships and Shipping characterised him as the founder of the torpedo-boat industry.
John Thornycroft var ikke den eneste leverandør af torpedobåde, men hans indflydelse var så stor, at Encyclopedia of Ships and Shipping beskrev ham som "torpedobådsindustriens grundlægger" (the founder of the torpedo-boat industry).