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Tiara 3800 Open
(w/ 2 x 450-hp Cummins 6CTA 8.3-M2 diesel inboards)

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Tiara 3800 Open
Tiara 3800 Open
The Tiara 3800 Open is a rugged offshore fishing boat with the features and amenities of a family cruiser. She delivers high performance with top-of-the-line comforts.

Key Features

    With 147 square feet in the cockpit there’s plenty of room when you hook into a big one or when you’re simply in the mood to entertain. An insole fishbox can easily hold the catch of the day, and it’s a great spot to stow the family’s beach toys too. A fishing console with sink and a waist-high circulating livewell are an option here, but the L-shaped galley comes fully equipped with AD/DC refrigeration, microwave oven, abundant storage space and Corian countertops. The master stateroom features a queen-sized pedestal bed, which makes it easy to get around and make up when you want to get on your way. And to take you there, twin 435-hp Cats or 450-hp Cummins provide plenty of get up and go. Contact: Tiara Yachts, 725 East 40th Street, Holland, MI 49423-5392 Phone: (616) 392-7163, www.tiarayachts.com.


Tiara 3800 Open Specifications
Length Overall 40' 9'' Dry Weight 22,500 lbs
Beam 14' 2'' Tested Weight N/A
Draft 3' 6'' Weight Capacity N/A
Draft Up N/A Person Capacity N/A
Draft Down N/A Fuel Capacity 411 Gallons
Air Draft N/A Water Capacity 110 gal
Deadrise/Transom 18 degrees Length on Trailer N/A
Max Headroom 6'7 Height on Trailer N/A
Bridge Clearance 9'5'' Trailer Weight N/A
Total Package Weight (Trailer,Boat & Engine) N/A
Prices, features, designs, and equipment are subject to change. Please see your local dealer or visit the builder's website for the latest information available on this boat model.

Engine Options

Tiara 3800 Open Engine options
Std. Power 2x435-hp Caterpillar 3208DITA diesel inboards
Tested Power 2 x 450-hp Cummins 6CTA 8.3-M2 diesel inboards
Opt. Power 2x450-hp Cummins 6CTA 8.3-M2 diesel inboards

Tiara 3800 Open Line Drawing


Tiara 3800 Open Photo Gallery

Tiara 3800 Open Tiara 3800 open.jpg Tiara 3800 Open Tiara3800-dinette.jpg
A functional cruiser with accommodations for four.

The 3800 Open has a large cockpit that’s great for entertaining or fishing. Up a step and you have a lounge area and double bench seats for the driver and passengers.

This lounge turns into a comfortable dinette.

The dinette seats four to five comfortably. Directly across is a galley complete with AC/DC refrigerator/freezer, microwave oven, and two-burner electric cooktop.

Tiara 3800 Open Tiara3800-master.jpg
You'll feel right at home in this stateroom.

The owner’s stateroom is forward and features a pedestal queen-sized berth. The cabin also has private access to the head, which has a separate shower stall, Corian countertops and a vanity with sink.

Tiara 3800 Open Tiara3800-line.jpg
Tiara Tiara

As you can see the 3800 has good overall flow to her. She's perfect for a weekend get-away for a couple or a family.

Tiara 3800 Open Captain's Report

The designers of the Tiara 3800 have successfully combined performance that savvy skippers demand with top-of-the-line creature comforts.

Tiara quality is a benchmark — hand-laid hulls and decks, 40/60 glass-to-resin ratios, and superior core materials pay off with a super-smooth, distortion-free finish.

Engine access on this boat is very good, first, by way of a day hatch in the bridge deck, and then via the electric lift hatch. Easy access means easy maintenance.

Meanwhile, the helm tilts back for easy access to the wiring, and controls are easy to reach. Plus, there’s plenty of room to mount your choice of cruising and fishing electronics.

There’s not a bad seat in the house on the 3800. A double-wide, back-to-back helm seat w/stowage below is to starboard, and there’s a standard hideaway wet bar just behind it with optional icemaker.

For more information call (616) 392-7163 or visit www.tiarayachts.com.

Tiara 3800 Open Test Result Highlights

  • Top speed for the Tiara 3800 Open is 35.4 mph (57 kph), burning 49 gallons per hour (gph) or 185.46 liters per hour (lph).
  • Best cruise for the Tiara 3800 Open is 30.2 mph (48.6 kph), and the boat gets 0.98 miles per gallon (mpg) or 0.42 kilometers per liter (kpl), giving the boat a cruising range of 362 miles (582.58 kilometers).
  • Tested power is 2 x 450-hp Cummins 6CTA 8.3-M2 diesel inboards.
For complete test results including fuel consumption, range and sound levels
go to our Test Results section.

Standard and Optional Equipment

Tiara 3800 Open Standard and Optional Equipment
Air Cond./Heat Optional
Battery Charger/Converter Standard
Stereo Standard
Head: Fixed Standard
Shore Power Standard
Trim Tabs Standard
TV/DVD Optional
Washdown: Fresh Water Optional
Washdown: Raw Water Optional
Water Heater Standard
Windlass Optional
Coffeemaker Standard
Icemaker Optional
Microwave Standard
Refrigerator Standard
Stove Standard
Exterior Features
Carpet: Cockpit Optional
Outlet: 12-Volt Acc Standard
Swim Ladder Standard
Swim Platform Standard
Transom Door Standard
Wet bar Standard
Bimini Top Optional
Boats More Than 30 Feet
Engine Synchronizer Optional
Freezer Standard
Generator Optional
Glendinning Cablemaster Optional
Oil Change System Optional
Vacuum Optional

Standard = Standard Optional = Optional

Tiara 3800 Open Warranty

Tiara 3800 Open Warranty Information
Warranties change from time to time. While BoatTEST.com has tried to ensure the most up-to-date warranty offered by each builder, it does not guarantee the accuracies of the information presented below. Please check with the boat builder or your local dealer before you buy any boat.
Hull Warranty
Years 5-Years
Transferable Yes
Deck Warranty
Years 5-Year
Transferable Yes
Engine Warranty
Years Engine warranties vary by manufacturer
NMMA Certification Yes

Tiara 3800 Open Price

Tiara 3800 Open Price
Pricing Range $502,130.00
Prices, features, designs, and equipment are subject to change. Please see your local dealer or visit the builder's website for the latest information available on this boat model.

Test Results   (Printer Friendly Page)

Test Power: 2 x 450-hp Cummins 6CTA 8.3-M2 diesel inboards
RPM MPH Knots Total GPH MPG NMPG Stat. Mile NM   KM    KPH    LPH    KPL   dBA
600 7.0 6.0 2.6 2.7 2.3 989 860 1592 11.30 9.84 1.14 73
1000 9.8 8.5 5.9 1.7 1.4 614 534 988 15.80 22.33 0.71 79
1250 11.1 9.7 10.5 1.1 0.9 391 340 629 17.90 39.75 0.45 87
1500 13.4 11.7 17.7 0.8 0.7 280 244 451 21.60 67.00 0.32 86
1750 19.7 17.1 23.1 0.9 0.7 315 274 507 31.70 87.44 0.36 83
2000 25.7 22.3 27.1 1.0 0.8 351 305 565 41.40 102.58 0.40 87
2250 30.2 26.2 30.8 1.0 0.9 362 315 583 48.60 116.59 0.42 88
2500 33.7 29.3 41.6 0.8 0.7 300 261 483 54.20 157.47 0.34 89
2650 35.4 30.7 49.0 0.7 0.6 267 232 430 57.00 185.48 0.31 90

All fuel consumption numbers are the total for all engines in the boat. Speeds are measured with Stalker ProSports radar gun or GPS. Fuel consumption (gallons per hour) measured with Floscan digital fuel-flow meter or by on-board factory-installed diagnostic instruments. Range is based on 90% of published fuel capacity. Sound levels determined using Radio Shack digital decibel meter on A scale. 68 dBA is the level of normal conversation. Time to plane is measured from start of acceleration to formation of rooster tail behind boat.

Performance Chart

Performance Chart

Test Conditions

Test Power: 2 x 450-hp Cummins 6CTA 8.3-M2 diesel inboards
Time To Plane n/a
0 to 30 n/a
Test Power 2 x 450-hp Cummins 6CTA 8.3-M2 diesel inboards
Transmission ZF
Ratio 1.71:1
Props 24x38 3-bld Nibral
Load -fuel, -water, 4 persons on board, min. cruising gear
Climate Temp: 84F, Humid: 74%, Wind: 5-10 knots, Seas: 1-2 feet

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