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Old 06 August 2008, 05:37   #1
Country: UK - Scotland
Town: Glasgow
Make: humber
Length: 6m +
Engine: optimax 150
Join Date: May 2007
Posts: 70
new prop choice

Looking for some advice regarding prop choice. I have a Humber destroyer 6m with an 150 optimax. At present it has a ballistic 21 pitch and 13 1/8 diameter I can get 45 knts @ 5200 rpm. i have damaged the prop and now get 42knts @ 5150 rpm. Any suggestions for a replacement prop to get a bit more speed?

iainmartins is offline   Reply With Quote
Old 27 August 2008, 08:29   #2
Country: France
Town: Cannes
Boat name: midkat 550
Make: apoge
Length: 5m +
Engine: 2x50 Tohatsu
Join Date: Jan 2008
Posts: 126
I would suggest a SS Powertech like PTC3 or PTC4 in 19" pitch to raise a bit the RPM, 5200 is too low.
Or the OFX3 or 4, a fantastic prop for those who like running WOT on rough sea, they get another boat with this prop, more stable and usable in any conditions
yorfuoj is offline   Reply With Quote

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