ThunderJet Alexis OB Offshore - 21 ft. 2008 boat specs
ThunderJet
ThunderJet Alexis OB Offshore - 21 ft. 2008
2008
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VS
ThunderJet Luxor OB 2009 boat specs
ThunderJet
ThunderJet Luxor OB 2009
2009
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ThunderJet Alexis OB Offshore - 21 ft. 2008 vs ThunderJet Luxor OB 2009 — Which Modified Vee Fits Your Needs?

When two boats share the same hull type — in this case both the ThunderJet Alexis OB Offshore - 21 ft. 2008 and the ThunderJet Luxor OB 2009 are modified vee designs with aluminum construction — 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?

The ThunderJet Alexis OB Offshore - 21 ft. 2008 carries a rated maximum of 500 hp. Engine data for the ThunderJet Luxor OB 2009 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Both carry nearly identical fuel loads — 5 gal and 5 gal — so range won't be a tiebreaker here.

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 - 21 ft. 2008 at 21,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The ThunderJet Luxor OB 2009 at 2,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.
General Boat Info
MakeThunderJet
MakeThunderJet
ModelAlexis OB Offshore - 21 ft
ModelLuxor OB
Model Year2008
Model Year2009
Measurements / Dimensions
Beam102 in
Beam84 in
Beam - Meters2.59
Beam - Meters2.13
Beam - Inches102
Beam - Inches84
Width [transom] - Detail40 in
Width [transom] - Detail66 in
Height - DetailSides: 40 in
Height - Detailnot available
Height - Meters1.02
Height - Metersnot available
Height - Inches4
Height - Inchesnot available
Length - Feet21
Length - Feet2
Length overall - Detail21 ft. 0 in
Length overall - Detail20 ft. 0 in
Length overall - Meters6.4
Length overall - Meters6.1
Length overall - Inches252
Length overall - Inches24
Deadrisenot available
Deadrise16° Entry: 45°
Weight - Detailnot available
Weight - Detail1,800 lbs
Weight - kgnot available
Weight - kg816.47
Weight - lbs.not available
Weight - lbs.18
Height [transom]not available
Height [transom]31 in
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thickness0.190 in
Hull thicknessnot available
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail50 gal
Fuel tank capacity - Detail50 gal
Fuel tank capacity - Liters189.27
Fuel tank capacity - Liters189.27
Fuel tank capacity - Gal5
Fuel tank capacity - Gal5
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max500 hp
Engine maxnot available

ThunderJet Alexis OB Offshore - 21 ft. 2008 vs ThunderJet Luxor OB 2009 — Common Questions

Which is the larger boat — the ThunderJet Alexis OB Offshore - 21 ft. 2008 or the ThunderJet Luxor OB 2009?
The ThunderJet Alexis OB Offshore - 21 ft. 2008 is the longer of the two at 21,0 feet overall. The ThunderJet Luxor OB 2009 comes in at 2,0 feet, making it roughly 19,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The ThunderJet Alexis OB Offshore - 21 ft. 2008 has a documented max rating of 500 hp. Engine specifications for the ThunderJet Luxor OB 2009 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 - 21 ft. 2008 is Coast Guard rated for 6 passengers, while the ThunderJet Luxor OB 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.
Which boat is wider, and does it affect trailering?
The ThunderJet Alexis OB Offshore - 21 ft. 2008 measures 102" wide, compared to 84" for the ThunderJet Luxor OB 2009. 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.
How do the fuel tanks compare on the ThunderJet Alexis OB Offshore - 21 ft. 2008 and ThunderJet Luxor OB 2009?
Both boats carry similar fuel loads — 5 gallons and 5 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the ThunderJet Alexis OB Offshore - 21 ft. 2008 and ThunderJet Luxor OB 2009 from the same manufacturer?
Yes — both the ThunderJet Alexis OB Offshore - 21 ft. 2008 and the ThunderJet Luxor OB 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.