Hi Bob,, Thanks for,the reply. Re-propping for me is like a jungle with traps easy to fall in! The producers are SSUURREE. ! Me, not so. I have called for 3different opinions, 1st MichWheel -. One from Australia and another from Singapore who receive their tech answers from the UK. If all respond with similar sizing I guess I'm in the ballpark!
How did you end up with your props ? We have different parameters as you have higher reving diesels for the same 325hp. Also your weight will be a lot more than mine . Have you tried filling in the MichWheel data sheet for prop sizing. ? They are very good and there Is no obligation to buy ...at least if you live outside the US of A. If I was able to assist before its my pleasure ! Ross. Date: Mon, 3 Jun 2013 13:08:15 -0700 From: [email protected] To: [email protected] Subject: [UnifliteWorld] Re: Uniflite 38 aft cockpit. Ross, I have a 42' with twin cummins which develope 325HP at 3000rpm. This boat was re propped by a former Uniflite guy at the Padden Creek Marine yard in 1990 when it was repowered. Since buying the boat in 1995 I had been told by 2 different prop experts ( the best 2 in Seattle I was told) that their computer model said I had the wrong prop. I am told I have a 24"X 20 4 blade cut down to 22". All I can tell you is that I had a new set made, put on, and then taken right off since my performance got significantly worse. I know this isn't much help but I guess I am saying that not all experts are as expert as they claim. I think it is good to do lots of research and pick your prop guy like you might pick a brain surgeon. They all are not the same. Not sure what your choices might be in Jakarta. By the way Ross, you gave me great advice regarding a problem I was having with my Cummins (dieseling) . I never fully thanked you for it.......... On Monday, June 3, 2013 7:34:52 AM UTC-7, Ross Robertson wrote: Ross Robertson Jakarta. Hi, 2 subjects. Uniflite 38, Blister boat. 18 months ago I decided to bite the bullet, dry out the hull for 3 months on the hard, strip off all damaged fibre glass below the waterline, grind out and repair all blisters. Some were terrible! Then re-glass using polyvinyl ester resin and 2 layers of roving. This week, nervous, I docked .. and the result is beautiful... not a blister in sight below the water-line. I am kicking myself I didn't do the hull sides..where there are blisters. If anyone is interested in data I will be happy to provide. Propeller changes.. Am just about to fit new props. Does anybody have any pointers on this -- ..I have 2 x 6/71 TIs rated 325HP at 2300rpm. I am told the distance between the shaft center and hull is small therefore 4 blade props are best. Am being proposed 24 diam 28pitch 4 blade nibral... Would welcome advice 0n 3 blade versus 4 blade ? does anyone want to sell a pair in good condition? -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/unifliteworld?hl=en. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "UnifliteWorld" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/unifliteworld?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
