Tiara 4000 draft

[AncientMariner]

I have been receiving many different answers to the simple question of draft. In the sticky message here it says 4'6" the marine survey says 3' I have seen other literature that says 4'.

Although I can measure it when it get's here, it would be helpful to know now. Anyone know for sure?

Thanks,
Paul

[momentum]

I operate my 4000 on the premise of 3.7 feet of draft . Some time ago I recall 2.7 but that seems less than it looks out of water .

[bluebikemike]

The Tiara brochure from 2001 shows the draft (with props) for the 4000 Express being 4.0 ft. / 1.2 meters.

[Jakes]

Everything I have seen refers to 3' 6" on my 4100. The props also recess into a shallow pocket in the hull and I would think that how loaded down the boat is with fuel and water, etc. can be affect the depth as well.

[TMcG]

3'7" according to this link http://www.boattest.com/boats/test_resul...px?ID=1006

[Chris Burkard]

The advertised draft of a Tiara 4000 Express is 4'0". The CAT Engines and the Cummins engines offered in this boat were similar in weight, so draft should be very similar between the two. This is on all the literature that Tiara ever printed for the 4000 Express. I can tell you this, Tiara always over estimated the drafts. Tiara usually measure the draft 100% full (water, fuel, waste, people and gear) and then added and inch or two. My guess is the actual draft of Tiara 4000 Express is likely 3'10" or so fully laden.

Now, you say you have a 4000, but you fail to mention if it is a 4000 Express (Twin Inboards), or a 4000 Sovran (Twin Volvo IPS Drives). The advertised draft of Tiara 4000 Sovran is 3' 7". Again, this is measured fully laden with likely an inch or two of safety cushion.

As with all draft measurements, they are done so static. This means the boat is sitting in the water and not moving. The second you put the boat in forward gear, the transom is going to dip down and the draft will increase. How much of an increase depends on a whole host of things such as engine idle RPM, Transmission gear ratio, propeller size, vessel beam, length and current loading. My guess for a 4000 Express in gear at idle is going to be about 2 - 3 inches of increased draft. As you power up, that will increase several more inches up until the hull begins to plane at which time it will decrease.

Hope that info helps.

[AncientMariner]

Thanks Chris. My boat is the 4000 Express. Didn't know they called anything else the 4000.

Your info on the Sovran is most interesting. Whoda thunk it? No A/C, hmmmmm.

[Chris Burkard]

Thanks Chris. My boat is the 4000 Express. Didn't know they called anything else the 4000.

Your info on the Sovran is most interesting. Whoda thunk it? No A/C, hmmmmm.

The Tiara 4000 Sovran was introduced in 2005 as a 2006 model. Shortly after introduction, Tiara changed the model designation to Tiara 4300 Sovran. They are exactly the same boat, just called by a different name. Even owners of Tiara 4000 Sovrans call them 4300 Sovrans, that is unless they are paying the dockage bill in which case it is a 40!

The draft is less because of the IPS Drives. They are Perpendicular to the hull bottom, so they are angled outward and they also have smaller diameter propellers, although they have 2 per side which are counter rotating (7 blades in total per side).