New to us Boat Ranieri Revolution 450

julians said:
I would guess that yes it would cost you those RPMS.
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Prop should be good for 35kn if so, but main benefit is lower rpms at 25 to 28kn cruising speed, conditions permitting. It surges strongly from rest, holeshot is really good.
 
limecc said:
Prop should be good for 35kn if so, but main benefit is lower rpms at 25 to 28kn cruising speed, conditions permitting. It surges strongly from rest, holeshot is really good.
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Could you not buy some sort of clamp that you could tighten and get rid of that ding in the prop
 
julians said:
What's with the West Wales tuning sticker? Have you had the engine remapped? If so what difference did you see?
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I can add further comments to close off the sub topic how my West Wales Tuning remapped DF60 performs on the Ranieri Revolution.

The new engine needed to be lowered by 1 hole compared to the old DF50, AV plate now 20mm above keel. This made it feel lighter on the bow like it used to, having to use excessive trim down (to get the 17" prop to grip), meant it was always trying to bury the nose. Now it can be properly trimmed and it's a flying machine. Light throttle with instant acceleration I feel no need to replace the hydrofoil to help it plane.

I took it around the IoW on just 36L of fuel so pleased with that aspect, 28kn at just over 5K rpm so pretty relaxed cruising, 2.1Nm/L, I've got 3x 25L fuel tanks fitted so quite a decent range. Good economy encourages me to use it more.
TrackSummary_1.pngIoWtrack.jpgCruisingRPM.pngAdjustingTrailer.jpg

Bigplumbs said:
You dont half mess about with props. With all my boats I have just used the prop that came with the engine and all has been good. Too much faffing is not always a good thing
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I always want to get the best out of what I've got and enjoy the process along the way. Never trust that the person who set the boat up got it right, even if they are main dealers. Correct outboard height is worth a pitch or two of prop and best of all it's FREE!
 
Well done looks like it is going very well good to hear. Where is that little slip way it looks a good place to launch.

We are down in Southampton at the moment for the Boatshow. We have brought the Honwave as can’t tow a boat and caravan with one car lol
 
Do you think you need that aux engine permantly on the transom it is quite a weight. Why not put it in a bag in the large front locker if you feel you need it
 
@Bigplumbs it's a private slip on a Hayling Island Caravan Club campsite, also Hayling Yacht Co is next door and has a slip with more water.

A small boat like ours can get out to sea on 3.1m LAT from the campsite and 2.3m from HYC's slipway giving up to 5hr window if leaving on a rising tide and longer if you depart as it's drying out.
Hayling Yacht Co Slipway 5m tide.jpg

I weigh the pros and cons of leaving the 18kg aux at home depending on the journey. Reducing stern weight is welcome but the front locker is full and it needs strapping down even if in a padded bag.
Ranieri Front Locker.jpg
 
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Interesting set up. I have not yet used mine much so splitting thinks between the lockers is still to be played with.

What was the sea like on you trip around the Isle of Wight as you boat is quite small for that trip
 
Bigplumbs said:
Interesting set up. I have not yet used mine much so splitting thinks between the lockers is still to be played with.

What was the sea like on you trip around the Isle of Wight as you boat is quite small for that trip
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Maybe you've not seen my blog of sorts here:
Ranieri - Page 3

My experience of bigger craft is limited compared to yours, obviously the bigger the better but it also matters how the boat slams in big seas, me regarding a F5 as the largest I'd want to be caught out in, otherwise simply not pleasurable. Also the swell frequency matters, a 4 or 5 second swell is not very nice, even if its only 0.5m high. A longer swell interval like 15s is much more acceptable because you ride over the swell, rather than hit each peak.

On an IoW circumnavigation (and I imagine also for Anglesey which I want to do), you are going to get some less favourable conditions somewhere due to wind and tide. The Ranieri is much better than our old RIB (comparable to your Narwhal) and always feels safe, usually always dry. Would need a Voyager 19 to be the next worthwhile improvement in sea handling but then you've got a braked trailer to maintain, more difficult to push around by hand, and you've got the expense of running and maintaining a 150hp engine. Is it worth it over the smaller Ranieri? Maybe. Each person must decide.
 
limecc said:
Maybe you've not seen my blog of sorts here:
Ranieri - Page 3

My experience of bigger craft is limited compared to yours, obviously the bigger the better but it also matters how the boat slams in big seas, me regarding a F5 as the largest I'd want to be caught out in, otherwise simply not pleasurable. Also the swell frequency matters, a 4 or 5 second swell is not very nice, even if its only 0.5m high. A longer swell interval like 15s is much more acceptable because you ride over the swell, rather than hit each peak.

On an IoW circumnavigation (and I imagine also for Anglesey which I want to do), you are going to get some less favourable conditions somewhere due to wind and tide. The Ranieri is much better than our old RIB (comparable to your Narwhal) and always feels safe, usually always dry. Would need a Voyager 19 to be the next worthwhile improvement in sea handling but then you've got a braked trailer to maintain, more difficult to push around by hand, and you've got the expense of running and maintaining a 150hp engine. Is it worth it over the smaller Ranieri? Maybe. Each person must decide.
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For me the limit now of what I want to tow any distance has to fit on an unbraked trailer and her indoors has to be able to hold it in a wind or tide while I fetch the trailer. Sadly once you go over 15 ft it is very unlikely that either will be the case
 
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