Lucia 40: 3 blades folding props on a Volvo D1-30

[Falbala60]

In order to fit a cable stripper on our "promised Lucia 40", somebody can tell us what is (brand and model) the optional (OPT0571822) 3 blades folding prop FP is intalling on Volvo D1-30 ?
Thanks.

[Kazamaran]

Hello. Nothing available sold by VP. Not sure about aftermarket source
s.

[DougR]

Internet info seems to indicate that FP is using Volvo Penta three blade folding props as optional props for their cats. For more info straight from the horses mouth, why not ask FP?

Volvo Penta offers 2, 3 and 4 blade folding props for saildrive and straight shaft applications.

DougR

[Cotemar]

Volvo Penta has there own 3 bladed folding prop that comes on most FP's from the factory.

[Kazamaran]

I thought the OP was asking about line strippers that might be fitted with the folding props from VP..........VP does not have an OEM line stripper available for the their folding prop hubs. I was just pointing that out.

[Cotemar]

Originally Posted by Kazamaran

I thought the OP was asking about line strippers that might be fitted with the folding props from VP..........VP does not have an OEM line stripper available for the their folding prop hubs. I was just pointing that out.

I believe “SHAFT SHARK” makes a line cutter for Volvo Penta folding props.

To determine the correct Shaft Shark for your installation simply supply the following

Diameter of the fwd end of your propeller hub and the Saildrive make and model and the model of the Saildrive propeller

Saildrive Models ~ Available as split units only
SS 585T ... for 2-blade propellers
SS 695 ... SS696 ... for 3-blade propellers

[Falbala60]

Originally Posted by Cotemar

I believe “SHAFT SHARK” makes a line cutter for Volvo Penta folding props.
To determine the correct Shaft Shark for your installation simply supply the following
Diameter of the fwd end of your propeller hub and the Saildrive make and model and the model of the Saildrive propeller
Saildrive Models ~ Available as split units only
SS 585T ... for 2-blade propellers
SS 695 ... SS696 ... for 3-blade propellers

Thank you Cotemar (sorry for the late reply because I had no advise somebody replied to my request)

About line stripers, I think it is useless to buy the most expensive one because a cat have 2 engines that have little chances to be catched at the same time... so the Shaft Shark is OK for the cost

I was also in the process to check if the Volvo optional 3 blades propeler was the best for a Lucia with the price FP ask for.
The EWOL is about the same price and it is a feathering one that is supposed to be better on reverse

But after reading real test reviews on propelers I have decided to stay with the Volvo one.

Surprisinly the Volvo is among or close to the best for the forward and reverse static pull, but I don't beleive this is THE BEST TEST, because the pitch (and blade attack angle) of a propeler should be according to the "incoming water speed vs RPM" which is very low when attached to a warf ... !!! so, as they have all been tested in the same maner ... all should be wrong the same way...

Am I right ?

[EWOL Props]

Originally Posted by Falbala60

Thank you Cotemar (sorry for the late reply because I had no advise somebody replied to my request)

About line stripers, I think it is useless to buy the most expensive one because a cat have 2 engines that have little chances to be catched at the same time... so the Shaft Shark is OK for the cost

I was also in the process to check if the Volvo optional 3 blades propeler was the best for a Lucia with the price FP ask for.
The EWOL is about the same price and it is a feathering one that is supposed to be better on reverse

But after reading real test reviews on propelers I have decided to stay with the Volvo one.

Surprisinly the Volvo is among or close to the best for the forward and reverse static pull, but I don't beleive this is THE BEST TEST, because the pitch (and blade attack angle) of a propeler should be according to the "incoming water speed vs RPM" which is very low when attached to a warf ... !!! so, as they have all been tested in the same maner ... all should be wrong the same way...

Am I right ?

Hi Falbala60,

a feathering prop is for sure the best solution to:
- Increase speed under sail
- Optimize speed and fuel consumption under power (e.g. increasing the pitch to allow same speed at lower RPM)
- Improve reverse power and maneuverability

These 3 points above are well known on the market and are valid for all brands of feathering props, in addition on the EWOL Prop we have improved what follows:

- Increased the blade surface to furthermore increase top speed under power and cruising speed against wind. On Lucia 40 we have had improvements vs standard props of both top speed and cruising speed (about 0,8 knots)
- Made a curbed leading edge ad opposed to a straight one (this increases efficiency)
- Increased the sensitivity of pitch setting so to fine tune performances (every step of pitch setting varies the regime of 50 RPM). there are 48 different pitches that can be set easily underwater in less than 20 seconds
- The prop's gears are enclosed in a gearbox to prevent fouling from jamming the prop
- Manufacture the prop with Top Grade stainless steel
- Added interchangeable bushings for easier overhaul after years of operation
- Integrated a hub puller in the construction for easier prop pulling in case of need (e.g. pulling the prop underwater)
- Added an EWOL rope cutter for S-Drive versions
- Integrated 2 parallel systems preventing from loosing the propeller, the safest on the market, never had one EWOL Prop lost in over 20 years of operations

All the above can be clearly proved with data
All the best
EWOL Props

[scarlet]

Originally Posted by EWOL Props

H

a feathering prop is for sure the best solution to:
- Increase speed under sail
- Optimize speed and fuel consumption under power (e.g. increasing the pitch to allow same speed at lower RPM)
- Improve reverse power and maneuverability

dumb question, is "feathering prop" the same as a folding prop?

[belizesailor]

Originally Posted by scarlet

dumb question, is "feathering prop" the same as a folding prop?

No, a "feathering" prop's blades orient themselves parallel to the water flow when no force is applied to the hub (the engine is not running & in gear). A "folding" prop's blades fold together into a smooth compact shape under the same circumstances.

See Kiwi Props for an example of feathering and FlexOFold for folding.

[scarlet]

Originally Posted by belizesailor

No, a "feathering" prop's blades orient themselves parallel to the water flow when no force is applied to the hub (the engine is not running & in gear). A "folding" prop's blades fold together into a smooth compact shape under the same circumstances.

See Kiwi Props for an example of feathering and FlexOFold for folding.

so, feathering has less drag?

[belizesailor]

Both have minimal drag.

[Mark Johnson]

Originally Posted by scarlet

so, feathering has less drag?

The Flexofold in forward gear, is the most efficient prop made. Not so in reverse, but good enough.

While sailing, the Flexofold blades trail back so that they will not snag crab pots.
In sailing our self built tri for the last 25 years, our Flexofold has served us well.

[EWOL Props]

Here's the comment from one of our customers owning a Lucia 40.
If you want to know more go to our website www.ewoltech.com

Good Afternoon,

We have traveled about 2,500 nautical miles since installing the EWOL props on our Catamaran in November 2020 and I am happy to report there there have been no issues. I have been supremely impressed with the improvement in our boats performance both under-sail and while motoring. The experience will sailing has been improved by the smooth transition from power to sail and continues while sailing with the noticeable absence of sound from the props or transmission. When motoring the props really show how well the design work when both forward and reverse are needed. Our boat doesn’t have any bow thrusters and therefore having the ability to rely upon our props to quickly transition from forward to reverse and back again is vital. I can tell you that I have the utmost confidence in our props and decision to work with EWOL. I would recommend that any sailor consider this product when trying to decide what prop improve both he safe operation and performance of their vessel.

[CaptainRivet]

Originally Posted by Cotemar

Volvo Penta has there own 3 bladed folding prop that comes on most FP's from the factory.

17inch folding on a D1-30?

The standard fixed 3 blade prop is 13" for the 20hp and 14" for the D1-30.
I have D2-50 in my 40ft Lavezzi and prop specialist Gröover from Hamburg Calculated a 17inch fixed 3 blade from Volvo for it which fits perfectly. They recommended the 18inch folding Volvo 3 blade instead, one size bigger then the fixed for the losses and form their chief engeneer I got explained in operation the folding one is normaly around 17.5 inch real diameter.
Gröover also confirmed its volvo folding 3 blade from FP factory since 2000