The reason for the delay in giving steam power to the battle fleet was that it had to await the invention of the 'submarine propeller or archimedean screw'.
Isizathu sokuba ibenokuchotha ekunikezelweni kwezi zinamandla amakhulu yinto yokuba kuzakufuneka kulindwe ukwenziwa kwezihamba ezantsi kolwandle ezisebenzisa isiqhubi okanye isikrufu esiyi ankile medini.