Re: Boyesen Power Reeds
Thanks for the response. So with the information we have, speed of 50mph GPS and using a realistic slip figure of 15% I have one of two things going on. I have a 20 pitch prop pulling like a 22 pitch or I have yet another inaccurate tach reading. My calculations tell me that if the prop is a true 20 pitch that I should be running about 5500 rpm now instead of the indicated 5100 rpm. I am just dying now to get back onto the lake to see<br />what variable is out. I may have solved the low RPM problem without changing anything except another faulty tach that would be under warranty. The marina's shop tach would be their problem. Or I will be looking for new 20 pitch raker that pulls like a 20. All this is elementary until the ice goes and we can go after some real test data again. Once again I thank you for corresponding with me, I agree this is great dialouge. Walleyhed now that Dhadley and I have worked this to death until I can get back on the lake and test, what are you running compared to myself? Engine, Boat, Prop, RPM, Speed and slip. This would give me somthing to think about till Mid April. Thanks for your time and input. Muchco
hope nobody seen that, I'll have to take'em outback to the wood shed if they did.....<br />Muchco, we'll discuss my rig after Dhadley has answered your questions pertaining to the situation at hand, BUT, I can tell you it's no surprise to see those 19's running the same RPM as the 20 Raker...it lifts well, provides less wetted surface and thats why the RPM is the same.<br />My question would be..Are you sure it's a 20P, Has it been worked or repaired?? and, is it in like-new condition??? The Raker is performing just as my tests indicate on my boat..it's them same rpm, but the less wetted surface is decreasing drag, and that's why the others are 2-3mph slower...that part makes sense, the slip numbers don't. I show about Identicle slip numbers that Dhadley has posted, hence the question of the tach. Let's see what DH says...
