Naess 6


Thank you for your custom bore 18” propeller. Finally could mount it and test it today. Awesome difference. A little more noisy than my old 16”, but could not hear it over 5 knots. And I finally have a boat I can manouver in the harbour.
I can also add in the harbour, I now know I have more stopping power, so I can manouver in higher and safer steering speed.

HN – Japan
Pacific 42-Aquavit
Yanmar 4jh2-te – Special bore

Roux 2

CARTER 37 - Super efficient!

Grazie mille! Your propeller is super efficient!
FJ R – France

CARTER 37 – Mustang
Volvo Penta D2-40


Beneteau 393 - Performance is much improved

Just to let you know I had the pitch adjusted + 2degrees (8 increments) and performance is much improved: eight knots at 2800 rpm, 6.5 knots at 1700 rpm and 4 knots at idle. Very pleased with the result and the product.
PC – Canada

Beneteau 393, Volvo Penta D2-60

Beneteau oceanis 351

Oceanis 351 - My EWOL prop is very good

My EWOL prop is very good. My speed was max 4 knots at 2500 rpm. Now it is 7 knots on calm waters. The sailboat responds faster in reverse and is more manageable.
BM – Slovenija
Oceanis 351 – Yanmar 3GM30F

Installazione nardini 3

Hallberg Rassy 42F MK2 - I am very satisfied

Good day Mr. Moroni
Last year I had the opportunity, traveling about 2000 miles between Greece and Croatia, to appreciate the Ewol propeller by comparing it with the previous one.
In particular:
– marked reduction of vibrations (practically absent);
– very balanced propeller engine ratio (I can exploit all the power of my engine at 2000 rpm cruising speed at 7 knots);
– Evolutionary effect absent;
– Excellent grip in reverse and stopping;
– Compared to the previous propeller normalization of the load on axis and inverter.
Overall I am very satisfied
MN – Italy
Hallberg Rassy 42F MK2 – Volvo Penta D2 75

Original Text

Buon giorno Sig. Moroni
Lo scorso anno ho avuto modo, percorrendo circa 2000 miglia fra Grecia e Croazia, di apprezzare l’elica Ewol confrontandola con la precedente.
In particolare:
– marcata riduzione di vibrazioni (praticamente assenti);
– rapporto motore elica molto equilibrato (riesco a sfruttare tutta la potenza del mio motore a 2000 giri velocità di crociera a 7 nodi);
– Effetto evolutivo assente;
– Ottima presa in marcia indietro e arresto;
– Rispetto all’elica precedente normalizzazione del carico su asse e invertitore.
Complessivamente sono molto soddisfatto
MN – Italy
Hallberg Rassy 42F MK2 – Volvo Penta D2 75

Barca valenzuela


We have traveled about 2,500 nautical miles since installing the 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 boat 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.

Salomone 1


Ewol propeller has solved the problem of maneuverability in port and greatly improved performance both under motor and sailing thanks to the feathering blades and more…. also customer support always available, among other things assembled years ago in the water … very simple.

Original Text

Questa elica Ewol ci ha risolto il problema delle manovre in porto e migliorato di gran lunga le prestazioni sia a motore che a vela grazie alle pale a bandiera e non solo…. inoltre supporto clienti sempre disponibile, tra l’altro montata anni fa in acqua… molto semplice.

Installazione alexis 2


I was able to do a sea trial with my new propeller, it worked perfectly as advertised.

Original Text



The propeller designed by EWOL gave an extraordinary thrust to my boat. Thank you for the extreme accuracy of the calculations, for the courtesy of the pleasant conversations and for the timing of the supply, a rare occurrence today.
While the new propeller was being assembled for my boat, a Comet 311s, a young sailor approached me and told me: “but this is an Ewol propeller, it’s the best in the world.” I replied: I don’t know if it is the best, but the sea will give its answer “. After a cruise that from the Circeo touched Palmarola, Ponza, Ventotene, Procida, Positano, Amalfi and Salerno Marina d’Arechi, I can say that the performance was extraordinary. With the typical load of cruising with the Ewol propeller, Volvo 20/20 engine, 5.5 knots are reached at 2000 rpm and 6.5 at 2500 rpm, 1100 rpm below the maximum. Greetings,
CC – Italy

Original Text

L’elica progettata da EWOL ha dato una spinta straordinaria alla mia barca. Grazie per l’estrema esattezza dei calcoli, per la cortesia delle piacevoli conversazioni e per il tempismo della fornitura, circostanza oggi rara.
Mentre in cantiere veniva montata la nuova elica per la mia barca, un Comet 311s, si è avvicinato un giovane velista che mi ha detto: “ma questa e un’elica Ewol, è la migliore al mondo”. Gli ho risposto: Non so se sia la migliore, ma il mare darà il suo responso”. Dopo una crociera che dal Circeo ha toccato Palmarola, Ponza, Ventotene, Procida, Positano, Amalfi e Salerno Marina d’Arechi, posso dire che il rendimento è stato straordinario. Con il carico tipico della crociera con l’elica Ewol, motore volvo 20/20 si raggiungono i 5,5 nodi a 2000 giri e i 6,5 a2500 giri, 1100 giri sotto il massimo. Grati saluti,
CC – Italy

Installazione le lievre


My yard fitted the EWOL propeller and we have been using it all August. I wanted to tell you that the propeller has been fantastic. It’s extremely smooth. The power and the pitch as delivered has been a perfect match for our engine where we get good performance in the mid range and still get excellent top speed.
Reversing is a breeze and thrust in reverse is excellent. And of course for the first time we can sail without the prop shaft spinning which is both (a lot) faster and quieter than we had before.
We had the propeller coated with PropSpeed and have had no issues with singing or strange noises.
I think your propeller is excellent and would happily recommend to anybody contemplating a conversion for a motorsailor such as ours where thrust under power is important.
Kind regards,
Owner: Nauticat 515 “Catkin”

Original Text