Forum

Welcome Guest 

Show/Hide Header

Welcome Guest, posting in this forum requires registration.





Pages: [1]
Author Topic: Barbary , Propeller Diameter / Pitch Comparison
djc
Owner
Posts: 19
Post Barbary , Propeller Diameter / Pitch Comparison
on: December 8, 2012, 14:38

Are there any Barbary owners out there that know the diameter or pitch of their propellers to compare by ? .

Bardolino , has a fixed RH 16"x 10" 3 bladed prop .

I seem to get cavitation crackling noise at 2100 rpm upwards . More noticeable when the hull is dirty , which may be normal ? not sure..

I have been told that it could be due to under pitching ? . various prop calc's do seem to suggest a 16x11 or 12 ? .

Has any one else had experience of reproping ? . or happen to know their prop dia/pitch , would be helpful.

David Coxon . Bardolino . Gosport .

djc
Owner
Posts: 19
Post Re: Propeller Size
on: August 3, 2013, 15:23

David Coxon . Bardolino . Gosport .

djc
Owner
Posts: 19
Post Re: Propeller Size
on: May 5, 2014, 10:27

To update my earlier post.
Solved the problem of my prop cavitiation issue , I hope. It was the top front edge of prop blade clearance being to close to the dead wood part of hull barely 12% min is 15%.
Have now moved prop aft by 40mm so upper blade tip is centre of aperture , extended cutlass carrier to match , had 1 inch of pitch put on prop and it now goes like a dream .

David Coxon . Bardolino . Gosport .

Pages: [1]
Mingle Forum by cartpauj
Version: 1.0.30; Page loaded in: 0.049 seconds.

Leave a Reply