ThunderJet Alexis OB Offshore 2010 boat specs
ThunderJet
ThunderJet Alexis OB Offshore 2010
2010
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VS
ThunderJet Rio Classic 2009 boat specs
ThunderJet
ThunderJet Rio Classic 2009
2009
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ThunderJet Alexis OB Offshore 2010 vs ThunderJet Rio Classic 2009: A Close Look at Two Modified-V Boats

Both the ThunderJet Alexis OB Offshore 2010 and the ThunderJet Rio Classic 2009 are modified-V designs, both built in aluminium, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department - ThunderJet Alexis OB Offshore 2010 at 21,0 ft versus ThunderJet Rio Classic 2009 at 22,0 ft. Weight tells a clearer story for trailering families: the ThunderJet Rio Classic 2009 tips the scales at 4 000 lbs - 1 600 lbs less than the ThunderJet Alexis OB Offshore 2010 at 2 400 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.

The ThunderJet Rio Classic 2009 tops out at 325 hp. Engine specs for the ThunderJet Alexis OB Offshore 2010 aren't listed - confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the ThunderJet Rio Classic 2009 carries 80 gallons versus 50 gallons in the ThunderJet Alexis OB Offshore 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 6 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 ThunderJet Alexis OB Offshore 2010 and ThunderJet Rio Classic 2009 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
MakeThunderJet
MakeThunderJet
ModelAlexis OB Offshore
ModelRio Classic
Model Year2010
Model Year2009
Measurements / Dimensions
Beam102 in.
Beam102 in.
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Deadrise18° Entry: 45 °
Deadrise14°
Weight - Detail2,400 lbs.
Weight - Detail4,000 lbs.
Weight - kg1088.62
Weight - kg1814.37
Weight - lbs.2400
Weight - lbs.4000
Width [transom] - Detail84 in.
Width [transom] - Detail6 ft. 5 in.
Height [transom]40 in.
Height [transom]34 in.
Length - Feet21
Length - Feet22
Length overall - Detail21 ft. 0 in.
Length overall - Detail22 ft. 0 in.
Length overall - Meters6.4
Length overall - Meters6.71
Length overall - Inches252
Length overall - Inches264
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail50 gal.
Fuel tank capacity - Detail80 gal.
Fuel tank capacity - Liters189.27
Fuel tank capacity - Liters302.83
Fuel tank capacity - Gal50
Fuel tank capacity - Gal80
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeInboard
Engine/s standardnot available
Engine/s standard5.7 l Vortec
Horsepowernot available
Horsepower325

ThunderJet Alexis OB Offshore 2010 vs ThunderJet Rio Classic 2009 - Common Questions

Which is the larger boat - the ThunderJet Alexis OB Offshore 2010 or the ThunderJet Rio Classic 2009?
The ThunderJet Rio Classic 2009 is the longer of the two at 22,0 feet overall. The ThunderJet Alexis OB Offshore 2010 comes in at 21,0 feet, making it roughly 1,0 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the ThunderJet Alexis OB Offshore 2010 or the ThunderJet Rio Classic 2009?
For trailering, the ThunderJet Alexis OB Offshore 2010 has the edge at 2 400 lbs dry weight versus 4 000 lbs for the ThunderJet Rio Classic 2009. 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.
What is the maximum horsepower rating for these boats?
The ThunderJet Rio Classic 2009 has a documented max rating of 325 hp. Engine specifications for the ThunderJet Alexis OB Offshore 2010 were not available in our database - check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The ThunderJet Alexis OB Offshore 2010 is Coast Guard rated for 6 passengers, while the ThunderJet Rio Classic 2009 is certified for 6. 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the ThunderJet Alexis OB Offshore 2010 and ThunderJet Rio Classic 2009 share an 102 in. beam - meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
Which boat has the larger fuel tank - the ThunderJet Alexis OB Offshore 2010 or the ThunderJet Rio Classic 2009?
The ThunderJet Rio Classic 2009 has the bigger tank at 80 gallons, versus 50 gallons on the ThunderJet Alexis OB Offshore 2010. That 30-gallon difference translates to roughly 90–150 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the ThunderJet Alexis OB Offshore 2010 and ThunderJet Rio Classic 2009 from the same manufacturer?
Yes - both the ThunderJet Alexis OB Offshore 2010 and the ThunderJet Rio Classic 2009 are built by ThunderJet. 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.