Tiara Yachts 3800 Open 2008 boat specs
Tiara Yachts
Tiara Yachts 3800 Open 2008
2008
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Tiara Yachts 3900 Open 2011 boat specs
Tiara Yachts
Tiara Yachts 3900 Open 2011
2011
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Tiara Yachts 3800 Open 2008 vs Tiara Yachts 3900 Open 2011 — Same Brand, Different Boat

Matching a modified vee Tiara Yachts 3800 Open 2008 against a deep vee Tiara Yachts 3900 Open 2011 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The Tiara Yachts 3900 Open 2011 measures 41,9 feet overall (2011), giving it roughly 3,9 additional feet of deck space compared to the Tiara Yachts 3800 Open 2008 at 38,0 feet (2008). At 226 lbs and 245 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 550 hp, the Tiara Yachts 3900 Open 2011 has a 60-hp advantage over the Tiara Yachts 3800 Open 2008's 490-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Tiara Yachts 3900 Open 2011 carries 535 gallons versus 411 gallons in the Tiara Yachts 3800 Open 2008. 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 Open 2011 at 41,9 ft is the right call if deck space, comfort, and entertaining are top of your list. The Tiara Yachts 3800 Open 2008 at 38,0 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 Open
Model Year2008
Model Year2011
Measurements / Dimensions
Beam14 ft. 2 in. (4.32 m)
Beam15 ft. (4.57 m)
Beam - Meters4.32
Beam - Meters4.57
Beam - Inches17
Beam - Inches18
Deadrise18℃
Deadrise18℃
Draft [max] - Detail3 ft. 6 in. (1.06 m) with 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 - Detail24,500 lbs. (11,113 kg)
Weight - kg10251.18
Weight - kg11113
Weight - lbs.226
Weight - lbs.245
Height - Detail9 ft. 5 in. (2.87 m) from waterline to top of windshield 10 ft. 5 in. (3.17 m) from waterline to top of optional hardtop
Height - Detail9 ft. 7 in. (2.92 m) waterline to top of windshield
Height - Meters3.18
Height - Meters2.92
Height - Inches125
Height - Inches115
Length - Meters11.69
Length - Metersnot available
Length - Feet38
Length - Feet41.92
Length - Inches4
Length - Inchesnot available
Length [over all with swim platform]43 ft. 3 in. (13.18 m) with standard pulpit and optional 30 in. swim platform
Length [over all with swim platform]not available
Length overall - Detail38 ft. 4 in. (11.69 m) without standard pulpit 40 ft. 9 in. (12.42 m) with standard pulpit
Length overall - Detail41 ft. 11 in. (12.77 m) with standard pulpit 39 ft. 3 in. (11.96 m) without standard pulpit
Length overall - Meters12.42
Length overall - Meters12.78
Length overall - Inches489
Length overall - Inches503
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeModified Vee
Hull typeDeep Vee
Engine and Drivetrain
Engine/s standardTwin Cummins? QSC8.3, 490 hp
Engine/s standardnot available
Fuel tank capacity - Detail411 gal. (1,556 l)
Fuel tank capacity - Detail535 gal. (2,025.2 l)
Fuel tank capacity - Liters1555.8
Fuel tank capacity - Liters2025.19
Fuel tank capacity - Gal411
Fuel tank capacity - Gal535
Fuel typeDiesel
Fuel typeDiesel
Drive typeInboard - Twin
Drive typeInboard - Twin
Engine max490 hp
Engine maxnot available
Battery12V 2-bank battery system with batteries and battery switches (3 engine batteries, 3 house batteries)
Batterynot available
Engine makenot available
Engine makeCummins®
Engine modelnot available
Engine modelQSC8.3
Horsepowernot available
Horsepower550 hp
Operational Info
Head1
Headnot available
Sleeping capacityPlan A: 5 Plan B: 6
Sleeping capacity5
Water capacity110 gal. (416 l)
Water capacity120 gal. (454.25 l)
Holding tank capacity - Detail40 gal. (151 l)
Holding tank capacity - Detail38 gal. (143.85 l)
Holding tank capacity - Liters151.42
Holding tank capacity - Liters143.85
Holding tank capacity - Gal4
Holding tank capacity - Gal38

Tiara Yachts 3800 Open 2008 vs Tiara Yachts 3900 Open 2011 — Common Questions

Which is the larger boat — the Tiara Yachts 3800 Open 2008 or the Tiara Yachts 3900 Open 2011?
The Tiara Yachts 3900 Open 2011 is the longer of the two at 41,9 feet overall. The Tiara Yachts 3800 Open 2008 comes in at 38,0 feet, making it roughly 3,9 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Tiara Yachts 3800 Open 2008 or the Tiara Yachts 3900 Open 2011?
For trailering, the Tiara Yachts 3800 Open 2008 has the edge at 226 lbs dry weight versus 245 lbs for the Tiara Yachts 3900 Open 2011. 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.
Which boat can handle a bigger outboard?
The Tiara Yachts 3900 Open 2011 is rated to a maximum of 550 hp, giving it the larger power ceiling. The Tiara Yachts 3800 Open 2008 tops out at 490 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Tiara Yachts 3800 Open 2008 is Coast Guard rated for 12 passengers, while the Tiara Yachts 3900 Open 2011 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 Open 2011 measures 18" wide, compared to 17" for the Tiara Yachts 3800 Open 2008. 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 2008 or the Tiara Yachts 3900 Open 2011?
The Tiara Yachts 3900 Open 2011 has the bigger tank at 535 gallons, versus 411 gallons on the Tiara Yachts 3800 Open 2008. That 124-gallon difference translates to roughly 372–620 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Tiara Yachts 3800 Open 2008 and Tiara Yachts 3900 Open 2011 from the same manufacturer?
Yes — both the Tiara Yachts 3800 Open 2008 and the Tiara Yachts 3900 Open 2011 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.