Tamd 63p or 75

ColleyV8

ColleyV8

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On a Sealine F42/5, is the tamd 63p suitable, or should that size boat have the 480hp tamd75?

Looking at time to plane, smoke and mpg

Also the ecu issue on 75s worries me.
 
ColleyV8 said:
On a Sealine F42/5, is the tamd 63p suitable, or should that size boat have the 480hp tamd75?

Looking at time to plane, smoke and mpg

Also the ecu issue on 75s worries me.
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63s have a great reputation and are perfectly adequate in a 42/5 but the 75 will feel almost sporty, it’s 1/3 more power after all.

75 has less smoke and EDC controls. Other benefits of the semi electronic nature of the 75s are engine sync and the ability to have electronic readouts if things like turbo boost, litres per hour and litres per mile on your plotter.

I’d have the 75s all day long.
 
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75s will make it feel better , the last 42/5 I sea trialed for a pre purchase was absolutely diabolical in a cross wind , no matter how much tab I applied it wouldn’t sit level it cross tracked dangerously , the autopilot couldn’t cope , I tried it in various directions steering manually , eventually I carried on at displacement speed as I then felt safe . Not a boat I’d buy based on that experience, that was in the solent too , god knows what it would be like out at sea , this one had the D6/435/ hp engines .
 
volvopaul said:
75s will make it feel better , the last 42/5 I sea trialed for a pre purchase was absolutely diabolical in a cross wind , no matter how much tab I applied it wouldn’t sit level it cross tracked dangerously , the autopilot couldn’t cope , I tried it in various directions steering manually , eventually I carried on at displacement speed as I then felt safe . Not a boat I’d buy based on that experience, that was in the solent too , god knows what it would be like out at sea , this one had the D6/435/ hp engines .
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The 75s 480hp will make it chine run the same if not worse at higher speeds.
It is a problem of mostly (if not all) Sealines I have driven, and nothing will solve it unless you use it on land with a trailer.
 
kashurst said:
Have you ever been on any Sealine boats? Why do you dream this nonsense up?
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28, 290, S34, S38, 450, 360/37 Flamegno, S42 with T73 aka 430hp, 328, T50, T51, 380(400) Ambassador, F42/5. I think those, probably I missed some.
450 and 360 are the less which do chine running, Probably F430 is as good as 450.
I do not know anything about the new ones (HGs) to be fair as I have not tried any of these.

Sealine do chine run, are they dangerous, surely not!
As I never felt in danger, but saying they are not prone to chine-running is like saying wine does not taste of grapes.
Sure if one is experienced in helming it can be minimized.
 
N
PowerYachtBlog said:
28, 290, S34, S38, 450, 360/37 Flamegno, S42 with T73 aka 430hp, 328, T50, T51, 380(400) Ambassador, F42/5. I think those, probably I missed some.
450 and 360 are the less which do chine running, Probably F430 is as good as 450.
I do not know anything about the new ones (HGs) to be fair as I have not tried any of these.

Sealine do chine run, are they dangerous, surely not!
As I never felt in danger, but saying they are not prone to chine-running is like saying wine does not taste of grapes.
Sure if one is experienced in helming it can be minimized.
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None of the ones I’ve used (some extensively) have chine run.

AFIK none of the magazine testers have mentioned it apart from on the S42.

So to damn a whole brand seems a little harsh. Perhaps it’s the helmsman.
 
PowerYachtBlog said:
The 75s 480hp will make it chine run the same if not worse at higher speeds.
It is a problem of mostly (if not all) Sealines I have driven, and nothing will solve it unless you use it on land with a trailer.
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Ahhhh
That reminds me of the good old days of Sealine bashing on this forum which was heavily encouraged by the agent Peters. Phrases like “build by Kidderminster postmen” come to mind.
Interesting that Peters ended up as Sealine agents ….the tune changed somewhat then.

I‘ve had 3 Sealines and not had this problem, I guess along with hundreds of others we were just lucky.

Little odd that with the 19 Sealines you reviewed in your magazine that you don’t mention this problem.
 
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PowerYachtBlog said:
The 75s 480hp will make it chine run the same if not worse at higher speeds.
It is a problem of mostly (if not all) Sealines I have driven, and nothing will solve it unless you use it on land with a trailer.
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PYB, what sort of speed are you talking about?
I'm asking not because I have any Sealine experience proving or denying what you are saying, but because I never heard of chine walk (which is what I guess you mean by chine run) being a relevant issue in boats capable of only 30-something knots.
For instance, the Aicon 56 springs to my mind: a boat that already at mid-20 knots slowly walks the chine listing from one side to the other, struggling to stay perfectly horizontal, even in flat seas.
Trim fully down and constant, accurate steering corrections can cure that. But even if you leave her on a/p, she never gets problematic - just a bit weird, with some occasional listing either side for no apparent reason.
I suppose this is what you mean when talking of chine walk with those boats, or isn't it?
In this case - again, without neither confirming nor denying what you say specifically of Sealines - I'd rather call such hull mediocre, or unbalanced at worst.
Which is something true of many "normal" cruising boats to some degree - anywhere from hardly noticeable, up to annoying at worst (and I'd put the Aicon closer to the latter than to the former).

Now, maybe it's just semantic, but when you mention chine walk, what springs to my mind are small and very fast boats (like bass boats, typically), which at speeds in excess of 50 knots can, out of the blue and with no reason, start rocking frantically from side to side, potentially up to making the boat hook and spin, unless the helmsman is very experienced, knows how to react, and does - PDQ!
But I can't imagine any Sealine behaving like that, if nothing else because of their size and speed.
So, I can understand the objections to your point, if anyone think of chine walk the way I do - and which indeed is something you can only fix by using the boat with a trailer! :p
 
DavidJ said:
Little odd that with the 19 Sealines you reviewed in your magazine that you don’t mention this problem.
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Not if you want them to advertise in your publication again you dont. ?

Can remember when the boaty press would adversely comment on a boat build quality and handling in the spirit of constructive criticism.
Things all changed when boat magazines started to be 50% adverts 40% lifestyle and 10% boating features.
Boat Opinions.
Broom owners just smiled at all the curtain comments.
Princess and Fairline owners just carried on enjoying and repairing their boats confident in their choice of boat.
Sealine owners all seemed to have hissy fits. :)
Sealine knew exactly where their market was and very successfully exploited it, especially the strategy of starting small and trading up, leaving the traditional UK market floundering.
They did lead the market in interior space and many were sold when the skippers wife took one look inside and compared the interior to the dingy dark coal holes of traditional Britishboat.
Do know of a Sealine F33 which was purchased due to this factor.
Shame the boat was impossible to handle in any wind,even with the addition of a 3k bowthruster and the constant outdrive problems resulted in the boat being sold 18 months later.
Sealine built smaller boats with proper stairs , as did the foreign competition, when UK builders were still making skippers climb up little chromed ladders.
Always loved the P500, but a ladder on this class of boat................. seriously !
 
ColleyV8 said:
On a Sealine F42/5, is the tamd 63p suitable, or should that size boat have the 480hp tamd75?

Looking at time to plane, smoke and mpg

Also the ecu issue on 75s worries me.
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On top of what everyone else has said, the 73/4/5 engined boats may well be more disable (as an example, 63p Targa 43's often hand around before they sell).

If the ECU worries you then just buy a spare one (according to some people they'll be worth a fortune in a few years time).

Pete
 
DavidJ said:
Ahhhh
That reminds me of the good old days of Sealine bashing on this forum which was heavily encouraged by the agent Peters. Phrases like “build by Kidderminster postmen” come to mind.
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Those were the days :D!

As for chine walking, the only Sealine I've ever heard of that had the issue was the S41. However, people still seem to like them.
 
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