E35 Props
Date: December 19, 2001
From: Ed Davis edavis@palisadesmedical.org
I'm looking for some info from Endeavour 35 owners, can anyone provide info on 3 bladed prop size (other than what is recommended in owners manual).
Date: December 19, 2001 Are you talking about a fixed, folding or feathering prop? Frankly, I would not put a three-blade fixed propeller on an E35 (displ. 13,250 lb.) as it will be like dragging a bucket around when your sailing. The standard two-blade is great for power and I never felt lacking with the fixed two-blade. On my E35, Curiosity, which I sold this November, I had converted to a three-blade feathering MaxProp from PYI and its nothing short of great. My new E38 (disbl. 17,600 lb.) came with the same, a three-blade MaxProp, so it was an even swap as far as that was concerned. On the E35 the new wheel improved boat speed and thrust under power, but reduced drag to such an extent that it virtually disappears. I discovered this the first time I approached the dock with the MaxProp. The boat had so much more carry than ever before I was convinced the money was well spent. The reason that I went to the three-blade feathering prop is that the two-blade folding props do not produce sufficient thrust under power, and are trying to close in reverse plus the three-blade folding props create drag due to the larger hub profile. By changnig to the three-blade feathering prop rather than a two-blade I got a boost in powered performance (backing control is great) at the same time greatly improved her sailing performance. It was expensive, but worth it. Check out the PYI web site for details. Ed, if you value the sailing abilities of the E35 do not add a fixed three-bladed prop to your E35.
Date: December 20, 2001 I do not know what size is in the manual but my 35 has had 3 different sizes fitted and I can confirm without question that the best size for the 28 hp Yanmar with a 2.6 reduction gear is R.H.17/13, 3blade. The 17" is snug with 11/2 ' clearance. With this size in a standard fixed 3 blade configeration the engin peeks at 3100 rpm which is a little low. I have no doubt that with a "sailer" configeration it would reach the max 3600 rpm. Fuel consuption is 0.8 gals per hr. The others tried were 13/11 (Came with the boat) and 15/11 sailer All were 3 blade. The prop walk has become almost none existant with the larger size and there is much greater control in a sternway. Date: July 16, 2002 Hi Margaret Our boat has a Yanmar 3HMF engine too. I've got an engine manual that states most of this stuff, but it is on the boat in Clearwater...a 3 hour drive from my home in Naples. The Endeavour owners manual recommends either a two blade 16x12 prop or a 3 blade 14x11. However, when we did the change to a Max Prop, they recommended a 17 inch 3 bladed feathering prop, which we ordered. When the boat came out of the water, we where a little surprised to see a two bladed 17 inch prop on the boat (photo attached). If your interested we could consider selling you our old two blade prop shown in the photos. Don't know what a reasonable price would be though. Date: July 23, 2002 I am a former E35 owner, now an E38 owner. I replaced the solid two blade wheel on my E35 with a feathering Max Prop. If you can afford it I strongly urge you consider getting rid of a fixed wheel. I am not recommending a folding prop as they are not as effective in the cruising context, i.e., they try to fold up in reverse and don't really bite in either direction. The feathering three blade prop from Max is the best, it is invisible when sailing and full of thrust in both directions when under power. It also eliminates most but not all (thankfully) of the tendency to walk to port in reverse. Fortunately my E38 came with one also. Date: July 26, 2002 I had the same condition and in fact had purchased 3 props before I felt satisfied. The best for my new Yanmar 3 GM 27 hp with a 2.61 transmission is the one listed in the forum which is 17X13 RH, 11/4" shaft. I choose the standard 3 blade but am considering having it cut back to the same profile as the Sailor. I now reach hull speed and have virtually no prop walk going astern. This is not the size that Michigan will come up with. The earlier ones were only 13" in diameter and the clearance at the tips with the 17" is only 1 1/4" which is below the recommended amount however i get little if any noticable vibration thru the hull. With this prop the engin will run all day at 3000 rpm with no black smoke. I have not been able to run it up to max rpm of 3600, hence the the consideration to reduce blade area.
From: Jonathan A. Richards Endeav35@aol.com
From: Geoffrey Tyers GTYERS@aol.com
From: Russ Smith flightlevel00@earthlink.net
We have an 85 Endeavour 35, hull number 195, and have just replaced our prop with a feathering Max prop (we are still out of the water doing a mast step replacement).
As far as I know the brake horsepower is 27
My gear reduction ratio is 2.83
And I'm not certain about the rated RPM, but I think it is 3200.
From: Jonathan A. Richards Endeav35@aol.com
From: Geoffrey Tyers GTYERS@aol.com
