Quote:
Originally Posted by MBAtarga
I'm not sure about the shape(s), but I do recall years ago someone (perhaps a European mfr?) got in trouble for selling machinery to some country (China? Russia?) that gave them the ability to make props to such tight specs that they ran more quite and hence more difficult for the subs to detect.
|
https://en.wikipedia.org/wiki/Toshiba%E2%80%93Kongsberg_scandal 
race boats both drag and offshore depend on their props
I have NOT seen this new ghimmic win races