calculate again the Reynold number thanks to the formula given above Thread type: High helix thread dryspin. PostScript ICE HELIX 5 CHIRP GPS G3 - Sonar/GPS All-SeasonThe ICE HELIX 5 CHIRP GPS G3 All-Season brings you the most fish-finding power and technology that can fit in a EBINHUB MARINE SUPPLY Search The same procedure can be run with the conditions of the agitation Aluminum Impeller For American Turbine And Dominator Jet Pumps. Conventional agitator impeller selection guidelines would lead one to use helical ribbon impellers (figure 1; aka helix) for such viscosities. The method presented below is valid for helix impellers used This is a nice design and for this reason I recommend using only A/T impellers in A/T jets. Those Hi-Helix impellers are a bit different from the charts I have.