1510 Draft

[Vincentc]

Just Curious as to why/how the 4' 0" draft of the 53 MY changed to 4'9" when the hull was stretched to the 58' for the YF and the 58 MY, but the draft remained the same 4' when the 53 MY was stretched to the 58 TC MY. All these numbers are according to the PowerBoat Guide.

Regards,
Vincent

 

[Angela]

Is the 58TC on the same hull as a "stretched" 53MY or a 58MY? The TC is a very different boat, but maybe that's just from the rubrail up - I don't know.

I also wonder if the 53MY and the 58MY really came from the mold, generally. Yes, I know they are not from the same mold technically. I do have more head room downstairs than Pascal's 53MY, but I don't know if that's due to the 10 year age difference or whether it's a 53 vs 58 thing. If the latter, that could explain the deeper draft of the 58MY. When compared side by side, the hulls are different in terms of freeboard and a little bit of shape/lines, so perhaps they really didn't simply stretch the 53 and hence the possible difference in draft.

 

[Nonchalant1]

I wonder about that 4' 0" spec also. I measured my 1978 53MY from the actual waterline with 1/2 fuel and water and some gear and tools onboard. It is 4' 5 " from the waterline to the bottom of the prop blades when one of the blades is pointing straight down, which would be the lowest point when running. This is with Hatt spec's 28X31 props.

Doug

 

[SKYCHENEY]

Ang,
The 53ED has the extra headroom that your 58MY has as well. I think the hulls are the same, it's just the cabintop that is different and accounts for the extra HR below.

 

[ThirdHatt]

As I understand it, the 53MY draft of 4' was increased to 4'10" for the 58YF due to the shafts being longer so they protrude an extra 10" below the surface.

 

[TopHattandTails]

Our 53MY is 4.0' draft, I prefer 4.5' of water as a min. The water line is actually 2"s above the water (full fuel and no water in tanks, lite to average amount of gear)... The props are protected by the keel, but not by much. The 56's have much better running gear protection via the keel.

 

[stormchaser]

I wonder about that 4' 0" spec also. I measured my 1978 53MY from the actual waterline with 1/2 fuel and water and some gear and tools onboard. It is 4' 5 " from the waterline to the bottom of the prop blades when one of the blades is pointing straight down, which would be the lowest point when running. This is with Hatt spec's 28X31 props.

Doug

And when I bought mine, I was told draft was 4'6".

 

[REBrueckner]

We've had similar discussions before.....when I posted specs from my early 1970's Hatt boat brochure people disagreed on depth dimensions saying they had actually measured different figures. I recall other discussions on older DD engine weights as well..lots of different weights but similar totals.

I wonder if Hatteras stayed with some standard depth measurement over all years of production....standards change and maybe their measurement references did...perhaps even including fuel and water fills.... Anybody even know what Hatteras measures?? I know my 1972 48 YF sat roughly 2 inches lower with full fuel tanks versus nearly empty.....

 

[Sparky1]

Just Curious as to why/how the 4' 0" draft of the 53 MY changed to 4'9" when the hull was stretched to the 58' for the YF and the 58 MY, but the draft remained the same 4' when the 53 MY was stretched to the 58 TC MY. All these numbers are according to the PowerBoat Guide.

Regards,
Vincent

I didn't think the TC is simply a stretched version of the 53, but I don't know for sure. Same thing as it being a common hull to the 58MY, but I would assume it would be. My owner's manual lists the draft for my boat at 4'9".

 

[MikeP]

Early 53's held several hundred gallons less fuel than later models which would account for some of the difference. The revised flybridge is heavier and the change to the interior heads adds even more weight...

 

[JLR]

As I understand it, the 53MY draft of 4' was increased to 4'10" for the 58YF due to the shafts being longer so they protrude an extra 10" below the surface.

Just sent you an unrelated pm. Please get back to me when you can. Thanks.

 

[Sparky1]

As I understand it, the 53MY draft of 4' was increased to 4'10" for the 58YF due to the shafts being longer so they protrude an extra 10" below the surface.

I hate to question that statement since you owned one, but I would think that not to be the case for a couple of reasons. One, I would have to think they would change the angle of the shaft thereby keeping the draft much closer than the extra ten inches if it were simply an extension of the existing geometry. Second, wouldn't that have the props at or below the keel?