Who has changed from the standard three blade prop to a folding or adjustable pitch type? Brand recommendation?


LONGHAWK, B43 Hull #9

Views: 1375

Replies to This Discussion

We have installed the 3-blade feathering Max Prop on our B40. We have always used folding props on our race boats and had great performance, but they take longer to grab and can affect reverse performance.


Orange Blossom Special

I changed to a flexofold 3 blade folding 3 months ago and love it. It has changed the feel of the boat dramatically and added almost a knot of boat speed under sail. Less rounding up  and much more controllable when overpowered. Under motor I suspect better then old 3 blade ,fixed 8.5 knots at 2800 revs. Probably loses a bit in reverse in terms of stopping power but minimal and less pull sideways. Beautiful simple design and an easy to fit work of art.

Love it.

Well worth the cost . Around 2500 australian dollars




I have the Kiwi 3 bladed feathering prop. I has added about .75 knts in hull speed and the boat moves comparatively faster in the lighter breezes of the Chesapeake Bay. I do need to increase the RPM to maintain the same sped under power with this prop. I may increase the pitch of the prop slightly to see if the motoring speed increases. After investigation, this prop was the most reasonable in price. I did by two extra blades with the prop since they are made out of high impact plastic.

Changed our minds from the Kiwi prop and decided to go for the Flexofold 3 blade. Cono Sur is out of the water at the moment and the new prop is being fitted this week ready for the start of the season. Looking forward to the modification as it should take an hour of the journey from Whitehaven to Belfast


I wish you all a good (sailing) year.


Reactivating this thread searching for information on feathering propellers.


I like the concept of autopitch adaptation. To my knowledge AUTOPROP from Bruntons or Ecowind from Maxprop are the two; Has anyone some feed back on these two models on B40/43.


The standard Radice 3 blade fixed propeller is 18' does anyone know the pitch ?


Has anyone have a 19' ?





Has anyone also installed a shaft shark or the like? I was thinking since installing a folding propeller to also install a rope cutter...




Look at SPURS.  Excellent quality.  Installed it on our 2000 Hunter 460 (46').  Unsure if it ever cut a line on a lobster pot, etc.  During 12 yr. only once did we come to a stop while powering, presumably a lobster pot.  Eventually we got loose without diving.  Unsure, but we think the SPURS cut the line.

I've got an Autoprop on my B40. The dealer was very impressed with the efficiency. Good speed, low vibration, very low drag, and no propwalk in reverse.  I've heard some complaints about the flex-o-fold blades not opening up. Since each blade on the 3 blade autoprop is separately geared, centrifugal force will always open them, and there is no pitch to set--it is automatic.

You should see a marked performance when you get rid of the barn door fixed prop

I also added a line cutter forward of the prop.

Strongly recommend a Maxprop classic 3-blade feathering prop.  15 yrs experience supports it.  3 yrs on a 1998 Hunter 376 (37') and 12 years on a 2000 Hunter 460 (46').  The boats point higher into the wind under and sails faster v. a 3-blade fixed prop. 

Tidal current is 5+ knots in our area (The Race in Long Is. Sound).  Torque is excellent.  Repeatedly we outpaced others in the exact same vessel, who must have a different prop on their boat.  Never have we been passed by the same model when powering into the current.

Prop walk in reverse?  Absoultely- but it is all good.  Both Hunters are shoal draft, which is more prone to walk than a full keel.  Reverse is strong and well-controlled because Maxprop's blades flip 180 degrees in reverse and, thus, has equal thrust as going forward.  It's a big piece of mind near the dock.

Maxprop never let us down.  It is well contructed, requires only annual greasing and, importantly, runs and runs and runs every time we need it.  Our next boat will have a Maxprop.


Latest Activity

sail abroad replied to sail abroad's discussion Beneteau 40 2008 replacement rudder bearings in the group Beneteau 40 & 43
"Ok further information: if anyone is still interested? Today with the help my engineering mate we tested the bearings. First of all beneteau insist that all rudder strengthening modifications for my boat have been done at the factory: There is a…"
3 hours ago
Luis Vieira de Sá liked sail abroad's discussion Kanzaki KM35P dipstick length?
4 hours ago
Luis Vieira de Sá replied to Mike Brown's discussion Aft Head Shower Sump Leak in the group Beneteau 40 & 43
"I think the sump is connected to the floor with a kind of silicone. Take extreme care to avoid parts (the screws for example) to fall in the hole once you remove the sump. I placed a towel between the hull and the deck after having a night mare to…"
4 hours ago
TJ Morrissey replied to Mike Brown's discussion Aft Head Shower Sump Leak in the group Beneteau 40 & 43
"I have recently developed the same problem on our 2010 Beneteau 40. Any suggestions on the easiest way to remove the sump from the shower deck. I was able to remove the screws easily but the sump is sealed/adhered to the shower deck. Concerned about…"
MAssimiliano replied to Wayne's discussion New B 40 owner. in the group Beneteau 40 & 43
"Thank you Wayne. I started a new thread some weeks ago but It seems not intersting.. Tkank you for your effort I hope that when you will be in the sea we can…"
Wayne replied to Wayne's discussion New B 40 owner. in the group Beneteau 40 & 43
"Hello Max, I just returned from the boat. While onboard I looked through all the paperwork and owners manuals and did not find any information on the prop. So I cannot answer as to pitch, diameter, boat speed and rpm. Perhaps someone else on this…"
MAssimiliano replied to Wayne's discussion New B 40 owner. in the group Beneteau 40 & 43
"Hello Wayne. Thank you... I'm going to buy a flexofold propeller and I have a lot of doubt.... Do youk know which prop you have? A 18x13, a 17x14 or something else? Do you know which is your max engine boat speed and the related RPM? I guess…"
Wayne replied to Wayne's discussion New B 40 owner. in the group Beneteau 40 & 43
"Hello Max, The prop is a three bladed Flex O Fold and yes the engine is a 40hp 3JH4E."
Oct 20

© 2016   Created by CAN DRAC.   Powered by

Badges  |  Report an Issue  |  Terms of Service