RIB vs Proper Boat...

[andy21]

Just a general sort of question,

Have been browsing through boats and outboards/ebay etc, looking at the speeds people claim their boats can do and noticed that RIBS (of a similar size) to Rings/Phantoms seem a lot slower even with the same HP...

Is there any reasons for this in particular? I always figured they would be lighter, therefore slightly faster :-S

Any info/view points would be appreciated

Cheers, Andy

[Atlantic Xpat]

It's the weight of the bowie knives and other survival gear that a 'Ribster' is obliged to carry compared with the essential hardboater requirements of a pair of raybans and, well, that'll do.

[andy21]

Intersting theory... So if i ditched the knives an donned the raybans i could gain 10mph I suppose that would be alot cheaper then buying a lifter

[cfun]

Originally Posted by andy21

Just a general sort of question,

Have been browsing through boats and outboards/ebay etc, looking at the speeds people claim their boats can do and noticed that RIBS (of a similar size) to Rings/Phantoms seem a lot slower even with the same HP...
Is there any reasons for this in particular? I always figured they would be lighter, therefore slightly faster :-S
Any info/view points would be appreciated
Cheers, Andy

Recon it's down to make of boat and set up, if you look at the old 4ltr bat boat and compare to the rib the extreme team used to race nothing in it and I doubt if a Phantom 21 is any quicker than the rib version that Neil Holmes used to make and is a revenger 27 rib any slower than the old hard boat like bandit has with say a 200hp on again unlikely
but many ribs are a compromise style hull for general sea keeping and are taken from not such sporting pedigree and as such have been altered to suit a tubed boat that also may have more drag due to the tubes on the water, sporty boats also may have less drag than the sit up and beg style rib driving position that JF often says is a good way of being thrown from and probably quite true

[larby]

I put it down to the fact that rib drivers are pussies!

I think ribs are generally heavier built, especially compared to a race boat like a phantom. They're not so streamlined, the hulls are buit for agility not speed. Generally they're a deeper 'V' so they are much more unstable if pushed to a higher speed. With a race rib though you should be able to get the same kinda speeds as a similar speedboat.


I must admit when you look at the average conditions over here, i was really seriously looking for a rib before i found the cat...
James

Edit... Or basically what cfun just said while i was writing this!

[Johnny Rocket]

I think it's probably because RIB owners tend to have less to prove than the average speed boat owner, so don't have the same compulsion to lie about how fast their boat goes.

[larby]

definately true!!

[Burty]

Originally Posted by Johnny Rocket

I think it's probably because RIB owners tend to have less to prove than the average speed boat owner, so don't have the same compulsion to lie about how fast their boat goes.

why is it that you feel the need to ride in a hard boat all the time then dude?

[Johnny Rocket]

So I can see how fast they really go and laugh at their ridiculous claims!

[Carl]

Originally Posted by Johnny Rocket

I think it's probably because RIB owners tend to have less to prove than the average speed boat owner, so don't have the same compulsion to lie about how fast their boat goes.

there average speeds are lower because they always go out in nothing less than a force 10

[caw blimey]

I put it down to the fact that rib drivers are pussies!

Hey Larby you be carfull who you call a pussy

RIB s are handy for towing the hard boats when they break down

[Andy Edwards]

strange init my sr8 will doo 74 mph on gps with 225 hp ow many ard botes wiv 225 hp will do that lets face it there aint many 8metre ard botes wiv 400 orse powa that will do it janowotimeen geez any way i dont care coz ime a greedy fker ive got bofe

[Jon Fuller]

Originally Posted by Andy Edwards

strange init my sr8 will doo 74 mph on gps with 225 hp ow many ard botes wiv 225 hp will do that lets face it there aint many 8metre ard botes wiv 400 orse powa that will do it janowotimeen geez any way i dont care coz ime a greedy fker ive got bofe

The hard boat that your rib hull comes from would do 85mph with that power! work that one out.

[larby]

I don't know what you mean Kev!

Tis true, they do make rather good tow boats, even when it's a bit rough! Hopefully now i've got two engines (neither of which are xr2's ) i should be able to get myself home!

As far as ribs being slow, i think it's down to making a fair comparison. Something like a Humber is built for a purpose, like an aquastar or something. A bannana shark, revenger, K4 (am i redeemed now kev?) or similar is designed to go fast, like a speedboat.

James

[Andy Edwards]

ah yung jon there u are i noo u would av an ansa

[paul tilley]

is it anything to do with the better aerodynamics of the hard boats

[Hydrostream]

I would think the RIB is generally heavier! Has a full cockpit deck as apposed to only 1/3 in a hard boat + tubes are fairly heavy too!