Avalon Catalina 18 ft. 2010 boat specs
Avalon
Avalon Catalina 18 ft. 2010
2010
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VS
Avalon Tropic - 18 Foot 2007 boat specs
Avalon
Avalon Tropic - 18 Foot 2007
2007
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Avalon Catalina 18 ft. 2010 vs Avalon Tropic - 18 Foot 2007 — Same Brand, Different Boat

The Avalon Catalina 18 ft. 2010 vs Avalon Tropic - 18 Foot 2007 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.

On paper these two are close siblings in the size department — Avalon Catalina 18 ft. 2010 at 18,0 ft versus Avalon Tropic - 18 Foot 2007 at 18,0 ft. Weight tells a clearer story for trailering families: the Avalon Tropic - 18 Foot 2007 tips the scales at 1 491 lbs — 1 475 lbs less than the Avalon Catalina 18 ft. 2010 at 16 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.

Both boats share a closely matched power ceiling — 75 hp for the Avalon Catalina 18 ft. 2010 and 75 hp for the Avalon Tropic - 18 Foot 2007. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup.

Both boats are rated for 8 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.

At this size, power-to-weight ratio matters more than outright horsepower. The Avalon Catalina 18 ft. 2010 comes in at 0 lbs per hp versus 20 lbs per hp for the Avalon Tropic - 18 Foot 2007. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.

Bottom line: The Avalon Catalina 18 ft. 2010 and Avalon Tropic - 18 Foot 2007 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeAvalon
MakeAvalon
ModelCatalina 18 ft
ModelTropic - 18 Foot
Model Year201
Model Year2007
Measurements / Dimensions
Beam8 ft. 0 in
Beamnot available
Beam - Meters2.44
Beam - Metersnot available
Beam - Inches96
Beam - Inchesnot available
Weight - Detail1,600 lbs
Weight - Detailw/ furniture: 1,491 lbs
Weight - kg725.75
Weight - kg676.31
Weight - lbs.16
Weight - lbs.1491
Length - Feet18
Length - Feet18
Length overall - Detail18 ft. 0 in
Length overall - Detail18 ft. 0 in
Length overall - Meters5.49
Length overall - Meters5.49
Length overall - Inches216
Length overall - Inches216
Width [transom] - Detailnot available
Width [transom] - DetailDeck: 8 ft
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typePontoon
Hull typenot available
Pontoon and Inflatable Specific
Tube diameter23 in
Tube diameter23 in
Number of tubes2
Number of tubesnot available
Engine and Drivetrain
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max75 hp
Engine max75 hp
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail24 gal
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters90.85
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal24
Operational Info
Maximum capacity1,630 lbs
Maximum capacity1,850 lbs
Maximum people8 / 1,07
Maximum people8 or 1,480 lbs

Avalon Catalina 18 ft. 2010 vs Avalon Tropic - 18 Foot 2007 — Common Questions

Which is the larger boat — the Avalon Catalina 18 ft. 2010 or the Avalon Tropic - 18 Foot 2007?
The Avalon Tropic - 18 Foot 2007 is the longer of the two at 18,0 feet overall. The Avalon Catalina 18 ft. 2010 comes in at 18,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Avalon Catalina 18 ft. 2010 or the Avalon Tropic - 18 Foot 2007?
For trailering, the Avalon Catalina 18 ft. 2010 has the edge at 16 lbs dry weight versus 1 491 lbs for the Avalon Tropic - 18 Foot 2007. 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.
How many people can each boat hold?
The Avalon Catalina 18 ft. 2010 is Coast Guard rated for 8 passengers, while the Avalon Tropic - 18 Foot 2007 is certified for 8. 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 has the better power-to-weight ratio?
The Avalon Catalina 18 ft. 2010 has a better power-to-weight ratio at 0 lbs per hp compared to 20 lbs per hp for the Avalon Tropic - 18 Foot 2007. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Are the Avalon Catalina 18 ft. 2010 and Avalon Tropic - 18 Foot 2007 from the same manufacturer?
Yes — both the Avalon Catalina 18 ft. 2010 and the Avalon Tropic - 18 Foot 2007 are built by Avalon. 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.