Avalon Tropic - 18 Foot 2007 boat specs
Avalon
Avalon Tropic - 18 Foot 2007
2007
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VS
Avalon Windjammer - 18 Foot 2008 boat specs
Avalon
Avalon Windjammer - 18 Foot 2008
2008
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Avalon Tropic - 18 Foot 2007 vs Avalon Windjammer - 18 Foot 2008 — Same Brand, Different Boat

The Avalon Tropic - 18 Foot 2007 vs Avalon Windjammer - 18 Foot 2008 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 Tropic - 18 Foot 2007 at 18,0 ft versus Avalon Windjammer - 18 Foot 2008 at 18,0 ft. At 1 491 lbs and 1 491 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.

Both boats share a closely matched power ceiling — 75 hp for the Avalon Tropic - 18 Foot 2007 and 75 hp for the Avalon Windjammer - 18 Foot 2008. 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 carry nearly identical fuel loads — 24 gal and 24 gal — so range won't be a tiebreaker here.

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 Windjammer - 18 Foot 2008 comes in at 20 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 Tropic - 18 Foot 2007 and Avalon Windjammer - 18 Foot 2008 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
ModelTropic - 18 Foot
ModelWindjammer - 18 Foot
Model Year2007
Model Year2008
Measurements / Dimensions
Weight - Detailw/ furniture: 1,491 lbs
Weight - Detailw/ furniture: 1,491 lbs
Weight - kg676.31
Weight - kg676.31
Weight - lbs.1491
Weight - lbs.1491
Width [transom] - DetailDeck: 8 ft
Width [transom] - DetailDeck: 8 ft
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
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typenot available
Hull typePontoon
Pontoon and Inflatable Specific
Tube diameter23 in
Tube diameter23 in
Engine and Drivetrain
Fuel tank capacity - Detail24 gal
Fuel tank capacity - Detail24 gal
Fuel tank capacity - Liters90.85
Fuel tank capacity - Liters90.85
Fuel tank capacity - Gal24
Fuel tank capacity - Gal24
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max75 hp
Engine max75 hp
Operational Info
Maximum capacity1,850 lbs
Maximum capacity1,850 lbs
Maximum people8 or 1,480 lbs
Maximum people8 or 1,480 lbs

Avalon Tropic - 18 Foot 2007 vs Avalon Windjammer - 18 Foot 2008 — Common Questions

Which is the larger boat — the Avalon Tropic - 18 Foot 2007 or the Avalon Windjammer - 18 Foot 2008?
The Avalon Windjammer - 18 Foot 2008 is the longer of the two at 18,0 feet overall. The Avalon Tropic - 18 Foot 2007 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 Tropic - 18 Foot 2007 or the Avalon Windjammer - 18 Foot 2008?
For trailering, the Avalon Windjammer - 18 Foot 2008 has the edge at 1 491 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 Tropic - 18 Foot 2007 is Coast Guard rated for 8 passengers, while the Avalon Windjammer - 18 Foot 2008 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 Windjammer - 18 Foot 2008 has a better power-to-weight ratio at 20 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.
How do the fuel tanks compare on the Avalon Tropic - 18 Foot 2007 and Avalon Windjammer - 18 Foot 2008?
Both boats carry similar fuel loads — 24 gallons and 24 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Avalon Tropic - 18 Foot 2007 and Avalon Windjammer - 18 Foot 2008 from the same manufacturer?
Yes — both the Avalon Tropic - 18 Foot 2007 and the Avalon Windjammer - 18 Foot 2008 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.