Re: Propeller Size BF45, 4 blades to 3 blades...?
Hello again,<br /><br />You'll need to lower RPMs by about 400, which would equal approximately 2 inches higher pitch. See this link:
http://www.boat-props.com/info/prop_info.cgi?page=rpm and
http://www.ybw.com/ybw/honda/how.html <br /><br />Going from a stock alu prop to a steel prop, often with more aggressive cupping, will lower your RPMs further but it is hard to say exactly by how much before trying. The added cupping will give an increased bite and a slightly higher speed / efficiency as well. Different brands and designs of props will behave differently, so it's hard to compare & predict exactly across brands.<br /><br />The following props might work well (but I am hoping Walleyehed will chime in here):
link or
link <br /><br />Delivered via Jetcarrier to your doorstep or post office, the Turbo prop will be about NOK 1950 and the Solas about NOK 2120, including the overseas freight, Norwegian VAT and customs clearance.
