That is pretty/very smart. Thinking outside the box.
I have wondered for a while on how to do the alignment without major cupboard removals to check the coupling. You solved it. This has been my major reason to stall on getting a folding prop. Thank you John LF38 From: Pierre Tremblay [mailto:tremblay.pie...@yahoo.ca] Sent: February-16-18 2:25 PM To: C&C List Subject: Re: Stus-List Help with folding prop insights? I also have the original Martec Eliptic on my 38-3. No vibration, hull speed at 2400 RPM, and in reverse, you have to think ahead. To align the blade, I installed a cheap fleabay car backup camera connected to the video input of my chartplotter (Zeus Touch). With paint mark on the tranny and cuppling, easy to align. It also give me view on the engine, stuffing box and bilge when motoring for prolonged period. Pierre TremblayAvalanche #54988 C&C38-3 WK, hull #76 Le vendredi, 16 février 2018 11:53:09 Est, Gary Russell via CnC-List <cnc-list@cnc-list.com> a écrit : I have to provide the dissenting opinion on the Martec prop. Many years ago, I had to make a quick stop when two kids in a dinghy came out of a mooring field in front of me. In order not to hit them I slammed the boat in reverse. Being not geared, one of the blades did not open. The resulting imbalance ( at full power) bent the shaft severely. The resulting 1/2" run out created incredible vibration. The shaft and prop had to be removed for repair. I would never use a folding prop that isn't geared. I currently use a 3 blade Flex-O-Fold prop which has very good reviews and I'm happy with it. Gary S/V Kaylarah '90 C&C 37+ East Greenwich, RI, USA ~~~~~~~_/)~~~~~~ On Fri, Feb 16, 2018 at 9:54 AM, Dreuge via CnC-List <cnc-list@cnc-list.com> wrote: My LF38 came with a 2 blade Martec Eliptec (LH18DX14P-3 1-1/8), and I agree with others that the performance is surprising good. Yes I often forget/neglect to align the blades, and I have experienced the boat shake on a rare occasions. Performance wise, forward to hull speed is no problem in flat water, but like others, I cruise at about 6.5 with a lower rpm (Yanmar 3QM30/Paragon/Walter-Vee). With regards to backing/stopping, I have not hit anything (harder than willing) yet. I do get some starboard prop walk which I try to take advantage of, but it is nothing compared to the walk of my old 29Mk1 w/ a fixed 2 bladed prop. - Paul E. 1981 C&C 38 Landfall S/V Johanna Rose Fort Walton Beach, FL http://svjohannarose.blogspot. <http://svjohannarose.blogspot.com/> com/ On Feb 15, 2018, at 10:32 PM, cnc-list-requ...@cnc-list.com wrote: My Martec runs very smoothly with a couple small harmonics at different rpm's. That's normal for nearly all drive trains. Forward power is good. I think my prop is a wee bit underpitched. I can get hull speed with a clean bottom and max rpm but only 6.4-6.5 at cruise rpm (80% max). I really haven't had any issue with opening, closing, etc. I think the Martec is a good choice for folks who race and want minimal drag. If my use was only cruising, I'd probably have a different prop. Dennis C. ______________________________ _________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/ <https://www.paypal.me/stumurray> stumurray _______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
