Advice for a potential rib upgrade (Solent use)

[wookie 1]

So just to summarise - is the length of the rib more important when dealing with Solent chop, or the deadrise of the hull?

I.e. Would a 5.85/6m proper deep v be sufficient to be a good upgrade or would the length still be an issue? So thus needing a 6.5/7/7.5m to handle well?

As above, I'm not too worried about manoeuvrability on trailers etc, but I don't really want to end up with a 200+hour engine and subsequent running costs!

[John Kennett]

Originally Posted by wookie 1

Would a 5.85/6m proper deep v be sufficient to be a good upgrade or would the length still be an issue? So thus needing a 6.5/7/7.5m to handle well?

A deep V hull will definitely give you a significant improvement in how the boat handles the short, steep Solent chop.

However another metre or two in length would be a definite advantage though as you'd be able to get on top of a lot of it rather than bashing through every wave.

In Solent conditions a 7 or 8 metre RIB can feel like a magic carpet compared to a 5 or 6 metre RIB.

[Bucksribster]

I moved from an Adventure 560 to a Ribcraft 585. The RC is definitely a much softer ride in rough weather, and will find its way through the waves much better. It is a much heavier rib, and is designed for professional use. Having said this, any rib of this length is still going to be a lively ride in rough weather.

[paulbrown22]

I'd say the deadrise is more important , but if you can go longer as well, then as John points out, that will also make a big difference.

Most RIB's in the 7-8m+ market are going to be fairly deep V, so you'd likely get both length and deadrise together.

I think it all comes down to budget, and what you want from the boat - if you want to pay the purchase, running and maintenance costs of a much larger RIB, you would get lots of performance/handling improvements. If you want a less costly upgrade, unless you're really doing frequent long passages in foul weather, something like an RC 585 (or equivalent from other similar brands) would be a significant improvement, would cope well with the vast majority of Solent conditions, and is well suited if you want to explore coastal cruising as well.

[breezeblock]

Originally Posted by wookie 1

So just to summarise - is the length of the rib more important when dealing with Solent chop, or the deadrise of the hull?

I.e. Would a 5.85/6m proper deep v be sufficient to be a good upgrade or would the length still be an issue? So thus needing a 6.5/7/7.5m to handle well?

As above, I'm not too worried about manoeuvrability on trailers etc, but I don't really want to end up with a 200+hour engine and subsequent running costs!

have a look at a video that Xk59D put up I think it shows perfectly the difference a even a metre an make the video was called Clyde day out summer 17 look about 1.44 and 4.12 my rib is 5.3 and last tangos is 6.5 it spans the waves that bit better

[Whippy]

Keep your boat, sounds like you love it and at 5.5m is great fun on the swells!

Maybe buy a wetsuit...... [emoji41]

[MatFromPoland]

Originally Posted by John Kennett

A deep V hull will definitely give you a significant improvement in how the boat handles the short, steep Solent chop.

However another metre or two in length would be a definite advantage though as you'd be able to get on top of a lot of it rather than bashing through every wave.

In Solent conditions a 7 or 8 metre RIB can feel like a magic carpet compared to a 5 or 6 metre RIB.

But the same length and the same angle at transom can behave differently.
In Greece is very popular 5,5m RIB (after crisis), deep V but really heavy.

On the other side I was looking for SKPPER 7m RIB which has 33 deg at transom (very very deep V) but it is very light. Maker guarantee that this RIB with 200 HP Yam I can tow on trailer GVW 1500 kg :O

Mine boat on choppy Sea bechave differently if use
VIPER 19" prop
REBEL 19" prop

With Rebel it is really different kind of animal. Not jumps, much better reacts to shift from more to less power.

It is very hard to stop be on plane (which is very common use VIPER prop and reduce speed)

[paulb33]

Originally Posted by Dan Gurney

Also: you say you also sail... Does that mean this is not your primary money pit? Given that you've got this Avon just how you like it (And you aren't going to get that time/money back) is it really worth sinking a load of extra into another second hand boat?

To answer your original question though... we went from a 1993 Humber Attaque 5.3 to a Redbay 6.1. The difference in heavy weather is night and day. The Humber was a great wee boat and felt very safe, but you have to slow down much earlier than in the Redbay. We can easily maintain 20knots in force 5 - 6 for as long as our backs can take it. In fact the only time we can keep up with the big lads is when it's lumpy![emoji6]

How much of that is down to the shorter Humber length? Would a 6m Humber have compared better, I wonder?