Which Osprey RIB would be the fastest?

[Flavio]

With the same single 250 or 275hp Mercury Verado engine?

Seaharrier Max 7.4, 7.40x 2.40m, 600kg
Viper Max 7.5, 7.50x2.55m, 750kg
Lynx 8.0, 8.00x2.15m, 625 kg
Lynx 8.6, 8.60x2.15m, 685 kg

And would there be a noticeable difference in performance in other areas besided top speed and if so what?

[danny]

I think that the 8m lynx with single 275 setup will be the fastest.
I have a 24 foot Lynx with a single 225 and it runs about 50+ knots.

The Lynx 8.6 is a monster. Made for twin setup and very high speeds.
Lynx ribs are a bit narrow though.

Petrov can tell you everything about Opreys. Or you could give Kris a call at Bruggemarinecenter. They know everything.

I believe seaharrier on this forum has bought a new one this year.

This comes with a picture

[Petrov]

Flavio;

Are we talking when its flat water or ruff seas, the models are acting different in the seas so some models have an advantage when its more ruff than others.

[Petrov]

You can say that the Viper Max is around 2 knots faster than the Lynx but the Lynx is faster in the ruff seas.

[Flavio]

Originally Posted by Petrov

You can say that the Viper Max is around 2 knots faster than the Lynx but the Lynx is faster in the ruff seas.

And what about the Seaharrier Max?

[Flavio]

Originally Posted by Petrov

You can say that the Viper Max is around 2 knots faster than the Lynx but the Lynx is faster in the ruff seas.

So that means the Viper Max has a more efficient hull because it is the heaviest of the four?
What are the differences in the hull design, do they all have the same deadrise and pads? Also what is the benefit of a hardnose?

[hard1]

Originally Posted by Flavio

So that means the Viper Max has a more efficient hull because it is the heaviest of the four?
What are the differences in the hull design, do they all have the same deadrise and pads? Also what is the benefit of a hardnose?

It will dive deeper! (but keep the tubes on)

[Petrov]

Flavio;

Not long time ago we talked about this here on ribnet, if you search on ribnet there will be some attached pics of the hulls and explanation about the differences.
If there is anything that we missed than i am glad to help you.

Ther difference will be around 1-2 knots lower than the Lynx.

[Petrov]

It will dive deeper! (but keep the tubes on)

And not a crash brake as with regular tubes but much more wet

[danny]

Originally Posted by Petrov

And not a crash brake as with regular tubes but much more wet

My english is not that great. What do you mean Petrovman ?

[Pete7]

Danny how old is your boat ? the reason I ask is I think you have the older XR24 hull; which personally I think was the nicer looking boat rather than the Lynx. Notice the full bow rather than the later concave bow of the lynx.

You might be interested to read the fourth paragraph down.

http://www.cirrusribs.com/About.html

Although when I spoke to him recently about the Lynx he did say he didn't design the XR series. They first appeared in 92 with the 18 and 20, followed by the XR24. They were always a fast boat designed on a "delta Conic" shape. XR24s were built by Damen Bloor and Peter Kidd down in Falmouth. XR18 and 20s by Osprey in Standish, before they sold off the business. Worth doing a search on here for XR24 as we have discussed it before.

The hard nose has a number of advantages, storage space, good way of securing the tubes to the front of the boat and possibly cheaper to manufactuer the tubes, certainly easier and cheaper to replace one side tube if it were ever seriously damaged rather than the whole lot.

The viper series can be traced back to the Osprey Falcon range and from there to Fletcher in the late 80s.

I would have thought the XR/Lynx with its lighter and narrower hull should have been faster, it certainly has a big flat running surface to make it go.

Pete

[danny]

Pete.

The tubes in front-inside the bow case have a pen marked June 1997.
Now thats a bit strange as you said that XR24 where made until 1995 or 6.

I don't know how to call her. For simpel reasons i've decided to call her Lynx. better for the market.
Wouldn't mind anyway, it's a really great boat and she runs like hell.

If they where made today by this concept it would be a great model anyway.

[Pete7]

Originally Posted by danny

Pete.

The tubes in front-inside the bow case have a pen marked June 1997.
Now thats a bit strange as you said that XR24 where made until 1995 or 6.

I don't know how to call her. For simpel reasons i've decided to call her Lynx. better for the market.
Wouldn't mind anyway, it's a really great boat and she runs like hell.

If they where made today by this concept it would be a great model anyway.

Could easily be a 97 boat, just my memory fading the moulds are still available by the way

[danny]

Originally Posted by Pete7

Could easily be a 97 boat, just my memory fading the moulds are still available by the way

I would be interested in de moulds Pete. Should they be for sale ?

We have been out in unpleasend seas for some time now. The boat is realy good in having some waves at reasonable speeds and she will keep on giving you a comfort ride when you maintaine high speeds.

Best about these boat is that she flies strait trough the air and always comes down horizontaly.
I have had some ribs and sailed some more but they alway tend to go to one side when jumpin'.

[danny]

oops. that's one mail too many.

[Pete7]

Originally Posted by danny

I would be interested in de moulds Pete. Should they be for sale ?

sadly the moulds are not for sale, but a hull could be moulded from them.

We have been out in unpleasend seas for some time now. The boat is realy good in having some waves at reasonable speeds and she will keep on giving you a comfort ride when you maintaine high speeds Best about these boat is that she flies strait trough the air and always comes down horizontaly.
I have had some ribs and sailed some more but they alway tend to go to one side when jumpin'.

agreed, I think the biggest problem was Osprey were 10 years to early with this rib, they were aimed at the sports boat market when ribs were still orange and bought by divers.

Pete

[Petrov]

My english is not that great. What do you mean Petrovman ?

Maybe my english is bad, i just translated it directly from swedish to english and hoped it should be correct.
What i mean is that when you dive into a wave in ruff sea with a Viper Max it will stop directly and you have to hold on like crazy, a hardnosed rib doesnt stop directly, it goes into the wave and continues a little bit more, this dive doesnt make it so violent as with a boat with regular tubes but it gest more wet, i hope people doesnt understand like its easy to dive with them, vice verse, Osprey are made for ruff seas and when you are out there in the 30-40 knots wind it happends that you dive (when you driving with speed)

The hard nose has a number of advantages, storage space, good way of securing the tubes to the front of the boat and possibly cheaper to manufactuer the tubes, certainly easier and cheaper to replace one side tube if it were ever seriously damaged rather than the whole lot.

Absolutely, just be careful to place hard stuff in the storage, the tubes in the bow locker is not protected so if you have sharp or hard stuff in there its easy to damage the tubes.
On the Sparrowhawk, Eagle and Seaharrier series its not much more space than in a regular anchor locker but in the Lynx its very big.

[gtflash]

whos got the moulds pete??

Originally Posted by Pete7

sadly the moulds are not for sale, but a hull could be moulded from them.

agreed, I think the biggest problem was Osprey were 10 years to early with this rib, they were aimed at the sports boat market when ribs were still orange and bought by divers.

Pete

[Pete7]

A friend and commercial boat builder.

Pete

[gtflash]

so is it a splash or a genuine/licensed hull

Originally Posted by Pete7

A friend and commercial boat builder.

Pete