Impeller and jet drive basics

[ginger wizard]

Hello all, I want to get an understanding of impeller design and jet drives in general and i was wondering if any can recommend any good websites on the subject.

thanks in advance

[RivrLivn]

I would start with
http://http://www.hamiltonjet.co.nz/hamiltonjet_waterjet (http://www.hamiltonjet.co.nz/hamiltonjet_waterjet)