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 ?
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