This is a blog about the care and feeding, the preparation and use, of the 25' Island Drifter, WhiskyJack. "WJ" is hull #1 (fiberglass), designed by Kurt Frost, and constructed at the Outer Harbour Marine Ways in Victoria, British Columbia. LOA: 25'10", LWL: 19'6", beam: 8'7", draft: 3'2", displacement: 5,000 pounds, ballast: 2,500 pounds, sail area: 230 sq. ft. Auxiliary power is provided by a Yanmar 2QM15 with 2.14:1 reduction turning a 13"x97" three blade Campbell Sailor prop.
At Anchor
Tuesday, June 26, 2012
Tuesday, June 19, 2012
An Update on the Propeller Issue
Update: Norm at West x North was on vacation but has returned and contacted me. He has offered to swap the CS 14x8 prop for a CS 13x7. I don't think that I could have asked for more. Initially, I had some reservations about reducing the diameter of the prop, but research confirms that for a vessel my size, displacement, speed, horsepower, and gear reduction, a 13" diameter prop is acceptable and alone, the reduction in diameter might be expected to increase engine wide open throttle (WOT) RPM by about 450. The reduction in pitch from 9" to 7" should increase the WOT RPM another 200 for an expected increase of 650 RPM. If that is so, WOT RPM should be within acceptable limits with the 13x7 prop. A possible benefit of the smaller diameter prop would be decreased drag under sail. I can't wait to try it out.
06-28-12 Update: The new propeller is on its way back to me.
06-28-12 Update: The new propeller is on its way back to me.
Subscribe to:
Posts (Atom)