Pro-Line 18 Flats 2011 boat specs
Pro-Line
Pro-Line 18 Flats 2011
2011
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VS
Pro-Line 19 Sport 2005 boat specs
Pro-Line
Pro-Line 19 Sport 2005
2005
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Pro-Line 18 Flats 2011 vs Pro-Line 19 Sport 2005 — Same Brand, Different Boat

The Pro-Line 18 Flats 2011 vs Pro-Line 19 Sport 2005 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.

The power gap is worth calling out. Rated to 150 hp, the Pro-Line 19 Sport 2005 has a 35-hp advantage over the Pro-Line 18 Flats 2011's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Pro-Line 18 Flats 2011 carries 27 gallons versus 5 gallons in the Pro-Line 19 Sport 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 5 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: Performance buyers should lean toward the Pro-Line 19 Sport 2005 and its 150-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Pro-Line 18 Flats 2011 with its 115-hp rating is the more economical daily driver.
General Boat Info
MakePro-Line
MakePro-Line
Model18 Flats
Model19 Sport
Model Year2011
Model Year2005
Measurements / Dimensions
Beam8 ft. 0 in
Beam7 ft. 9 in
Beam - Meters2.44
Beam - Meters2.36
Beam - Inches96
Beam - Inches93
Deadrise13°
Deadrise19℃
Depth - DetailCockpit: 11 in
Depth - Detailnot available
Depth - Centimeters27.94
Depth - Centimetersnot available
Depth - Inches11
Depth - Inchesnot available
Draft [max] - Detail9 in
Draft [max] - Detail12 in
Draft [max] - Meters0.23
Draft [max] - Meters0.3
Draft [max] - Inches9
Draft [max] - Inches12
Weight - DetailHull: 1,548 lbs
Weight - Detail2,000 lbs
Weight - kg702.16
Weight - kg907.18
Weight - lbs.1548
Weight - lbs.2
Length - Feet18.33
Length - Feetnot available
Length overall - Detail18 ft. 4 in
Length overall - Detail19 ft. 2 in
Length overall - Meters5.59
Length overall - Meters5.84
Length overall - Inches22
Length overall - Inches23
Body / Hull
Hull materialFiberglass
Hull materialnot available
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Engine makeSuzuki or Evinrude or Mercury
Engine makenot available
Engine model4-stroke (Suzuki or Mercury engine) E-Tech (Evinrude engine)
Engine modelnot available
Fuel tank capacity - Detail27 gal
Fuel tank capacity - Detail50 gal
Fuel tank capacity - Liters102.21
Fuel tank capacity - Liters189.27
Fuel tank capacity - Gal27
Fuel tank capacity - Gal5
Fuel typeGas
Fuel typenot available
Drive typeOutboard
Drive typenot available
Horsepower90 hp
Horsepowernot available
Engine max115 hp
Engine max150 hp
Trailer Info
Trailer - Weight2,328 lbs
Trailer - Weight2,900 lbs

Pro-Line 18 Flats 2011 vs Pro-Line 19 Sport 2005 — Common Questions

Which is easier to trailer — the Pro-Line 18 Flats 2011 or the Pro-Line 19 Sport 2005?
For trailering, the Pro-Line 19 Sport 2005 has the edge at 2 lbs dry weight versus 1 548 lbs for the Pro-Line 18 Flats 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 Pro-Line 19 Sport 2005 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Pro-Line 18 Flats 2011 tops out at 115 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 Pro-Line 18 Flats 2011 is Coast Guard rated for 5 passengers, while the Pro-Line 19 Sport 2005 is certified for 5. 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 Pro-Line 18 Flats 2011 measures 96" wide, compared to 93" for the Pro-Line 19 Sport 2005. 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 Pro-Line 18 Flats 2011 or the Pro-Line 19 Sport 2005?
The Pro-Line 18 Flats 2011 has the bigger tank at 27 gallons, versus 5 gallons on the Pro-Line 19 Sport 2005. That 22-gallon difference translates to roughly 66–110 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Pro-Line 18 Flats 2011 and Pro-Line 19 Sport 2005 from the same manufacturer?
Yes — both the Pro-Line 18 Flats 2011 and the Pro-Line 19 Sport 2005 are built by Pro-Line. 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.