Sea Ray 240 Sundancer c/w KAD 32 Performance

[redglow]

Can anybody provide the performance figures for the above combination or advise where I may be able to find them? You know the sort of thing often given in boat reviews - speed, fuel consumption, speed and range for various engine speeds.

 

[mjkinch1]

There is a dedicated USA Boating site that has a review plus test videos of the Searay Sundancer 240 - but I think its the Mercruiser petrol version. But its a pretty good review.

www.boattest.com

Martyn

 

[adrianb]

Or you could try Marina Marbella - Searay Disti based on the Hamble.

I had a Sundancer 270 with twin petrols about 6 years ago.

Great boat.


www.cleanandshiny.co.uk

 

[Nautorius]

Do you need exact figures? Performance will be similar to an S24 Sealine, Chapparal 240 Signature or a Maxxum 2400 with the same engine option. Plenty of data on the Sealine S23/25 but not sure if it is the same hull as the S24?

Regards

Paul

 

[Ianj68]

Hi,

I used to run a 240 with a KAD32.

The fuel economy was great, I seem to recall getting about 4gals per hour. However, the performance was dreadful. I recall top end was not much better than 23kts. With more than 6 people on board with a full tank of fuel and water it would sometimes struggle to get over the hump.

 

[redglow]

I should have said - I already have this boat / engine, bought last summer. I have no performance issues, over 28kts, just wanted the data to establish most efficient cruising / pottering speeds and associated ranges.

 

[[2068]]

Not the same hull, but similar performance.

I never quite managed to hit 30kts in my S24, but 28-29 on a good day. Fine with four people, any more was a crowd.

I've got the KAD32 fuel and power/torque curves at home: will scan them in later in the week (Friday) if you're interested...

 

[[2068]]

Not v.good quality, but suggests that consumption at a fast cruise at 3000rpms would be about 20Litres/hour. Above 3000rpms, the consumption starts to suffer...

 

[redglow]

Thanks DVINELL, should be able to make some sense of this when I think about it. Obviously figures will vary with hull form but at least the difference can be assessed making a comparison possible. Presumbly all figures above 1500RPM assumes that vessel is on the plane? Doesn't anybody have performance figures on 240 hull?

 

[[2068]]

The lower dotted line is a "standard" prop load curve, which means that it matches no boats whatsoever. Especially not a planing hull which will have a "hump" just before it gets planing properly. Once planing, though, the upper part of the curve should match most hulls IF you have the correct props, i.e. you can reach at least 3800rpms flat out.

If you have the wrong props, and struggle to reach max revs, you'd follow a dotted line that was higher and closer to the "max load" (upper) curve, which is bad news, cos that means that your engine would be forced to produce more power at lower revs, which is not a good thing (bit like driving a car up a hill in 5th at 1500rpms and full throttle).

Hope this makes some sense...

dv.