Tiara Yachts 3800 Open 2006 boat specs
Tiara Yachts
Tiara Yachts 3800 Open 2006
2006
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Tiara Yachts 3900 Convertible 2006 boat specs
Tiara Yachts
Tiara Yachts 3900 Convertible 2006
2006
View full specs →

Tiara Yachts 3800 Open 2006 vs Tiara Yachts 3900 Convertible 2006 — Same Brand, Different Boat

The Tiara Yachts 3800 Open 2006 vs Tiara Yachts 3900 Convertible 2006 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

Size is the most obvious dividing line here. The Tiara Yachts 3900 Convertible 2006 measures 41,0 feet overall (2006), giving it roughly 37,0 additional feet of deck space compared to the Tiara Yachts 3800 Open 2006 at 4,0 feet (2006). Weight tells a clearer story for trailering families: the Tiara Yachts 3900 Convertible 2006 tips the scales at 30 125 lbs — 29 899 lbs less than the Tiara Yachts 3800 Open 2006 at 226 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The Tiara Yachts 3900 Convertible 2006 tops out at 9 hp. Engine specs for the Tiara Yachts 3800 Open 2006 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Tiara Yachts 3900 Convertible 2006 carries 475 gallons versus 411 gallons in the Tiara Yachts 3800 Open 2006. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 12 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Tiara Yachts 3900 Convertible 2006 at 41,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Tiara Yachts 3800 Open 2006 at 4,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.
General Boat Info
MakeTiara Yachts
MakeTiara Yachts
Model3800 Open
Model3900 Convertible
Model Year2006
Model Year2006
Measurements / Dimensions
Beam14 ft. 2 in. (4.32 m)
Beam14 ft. 5 in. (4.44 m)
Beam - Meters4.32
Beam - Meters4.39
Beam - Inches17
Beam - Inches173
Deadrise18℃
Deadrise14℃
Draft [max] - Detail3 ft. 6 in. (1.06 m) w/props
Draft [max] - Detail3 ft. 6 in. (1.06 m) with props
Draft [max] - Meters1.07
Draft [max] - Meters1.07
Draft [max] - Inches42
Draft [max] - Inches42
Weight - Detail22,600 lbs. (10,251 kg)
Weight - Detail30,125 lbs. (13,664 kg)
Weight - kg10251.18
Weight - kg13664.46
Weight - lbs.226
Weight - lbs.30125
Length - Meters12.42
Length - Meters12.7
Length - Feet4
Length - Feet41
Length - Inches9
Length - Inches7
Length overall - Detail40 ft. 9 in. (12.42 m) w/standard pulpit 38 ft. 4 in. (11.69 m) w/out standard pulpit
Length overall - Detail41 ft. 7 in. (12.7 m) w/standard pulpit 39 ft. 0 in. (11.9 m) w/o standard pulpit
Length overall - Meters12.42
Length overall - Meters12.67
Length overall - Inches489
Length overall - Inches499
Engine and Drivetrain
Engine/s standardTwin Cummins QSC8.3 diesels, 490 hp
Engine/s standardTwin Cummins QSC8.3 diesels, 540 hp
Fuel tank capacity - Detail411 U.S. gal. (1,556 l)
Fuel tank capacity - Detail475 gal. (1,798 l)
Fuel tank capacity - Liters1555.8
Fuel tank capacity - Liters1798.07
Fuel tank capacity - Gal411
Fuel tank capacity - Gal475
Drive typeI/O
Drive typeI/O
Engine maxnot available
Engine maxTwin Volvo D9 diesels, 575 hp
Operational Info
Sleeping capacity5
Sleeping capacity6
Water capacity110 U.S. gal. (416 l)
Water capacity110 gal. (416 l)
Holding tank capacity - Detail40 U.S. gal. (151 l)
Holding tank capacity - Detail38 gal. (144 l)
Holding tank capacity - Liters151.42
Holding tank capacity - Liters143.85
Holding tank capacity - Gal4
Holding tank capacity - Gal38

Tiara Yachts 3800 Open 2006 vs Tiara Yachts 3900 Convertible 2006 — Common Questions

Which is the larger boat — the Tiara Yachts 3800 Open 2006 or the Tiara Yachts 3900 Convertible 2006?
The Tiara Yachts 3900 Convertible 2006 is the longer of the two at 41,0 feet overall. The Tiara Yachts 3800 Open 2006 comes in at 4,0 feet, making it roughly 37,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Tiara Yachts 3800 Open 2006 or the Tiara Yachts 3900 Convertible 2006?
For trailering, the Tiara Yachts 3800 Open 2006 has the edge at 226 lbs dry weight versus 30 125 lbs for the Tiara Yachts 3900 Convertible 2006. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
What is the maximum horsepower rating for these boats?
The Tiara Yachts 3900 Convertible 2006 has a documented max rating of 9 hp. Engine specifications for the Tiara Yachts 3800 Open 2006 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Tiara Yachts 3800 Open 2006 is Coast Guard rated for 12 passengers, while the Tiara Yachts 3900 Convertible 2006 is certified for 12. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The Tiara Yachts 3900 Convertible 2006 measures 173" wide, compared to 17" for the Tiara Yachts 3800 Open 2006. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Tiara Yachts 3800 Open 2006 or the Tiara Yachts 3900 Convertible 2006?
The Tiara Yachts 3900 Convertible 2006 has the bigger tank at 475 gallons, versus 411 gallons on the Tiara Yachts 3800 Open 2006. That 64-gallon difference translates to roughly 192–320 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Tiara Yachts 3800 Open 2006 and Tiara Yachts 3900 Convertible 2006 from the same manufacturer?
Yes — both the Tiara Yachts 3800 Open 2006 and the Tiara Yachts 3900 Convertible 2006 are built by Tiara Yachts. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.