Detailed Evaluation & Buyer Recommendation
ThunderJet Alexis Classic - 21 ft. 2008 vs ThunderJet Alexis OB Offshore - 21 ft. 2008 — A Close Look at Two Modified Vees
When two boats share the same hull type — in this case both the ThunderJet Alexis Classic - 21 ft. 2008 and the ThunderJet Alexis OB Offshore - 21 ft. 2008 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?
Both boats share a closely matched power ceiling — 500 hp for the ThunderJet Alexis Classic - 21 ft. 2008 and 500 hp for the ThunderJet Alexis OB Offshore - 21 ft. 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 — 8 gal and 5 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The ThunderJet Alexis Classic - 21 ft. 2008 is rated for 8 passengers, while the ThunderJet Alexis OB Offshore - 21 ft. 2008 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the ThunderJet Alexis Classic - 21 ft. 2008 could be the deciding factor.
Bottom line: Choose the ThunderJet Alexis Classic - 21 ft. 2008 if your priority is putting more people on the water — it handles 8 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The ThunderJet Alexis OB Offshore - 21 ft. 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakeThunderJet
MakeThunderJet
ModelAlexis Classic - 21 ft
ModelAlexis OB Offshore - 21 ft
Model Year2008
Model Year2008
Measurements / Dimensions
Beam - Meters2.44
Beam - Meters2.59
Beam - Inches96
Beam - Inches102
Width [transom] - Detail34 in
Width [transom] - Detail40 in
Height - DetailSides: 34 in
Height - DetailSides: 40 in
Height - Meters0.86
Height - Meters1.02
Height - Inches34
Height - Inches4
Length - Feet21
Length - Feet21
Length overall - Detail21 ft. 0 in
Length overall - Detail21 ft. 0 in
Length overall - Meters6.4
Length overall - Meters6.4
Length overall - Inches252
Length overall - Inches252
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thickness0.190 in
Hull thickness0.190 in
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Engine/s standardPort fuel injected 350; 325 hp
Engine/s standardnot available
ImpellerTurbo
Impellernot available
Jet pumpHamilton 212
Jet pumpnot available
Fuel tank capacity - Detail80 gal
Fuel tank capacity - Detail50 gal
Fuel tank capacity - Liters302.83
Fuel tank capacity - Liters189.27
Fuel tank capacity - Gal8
Fuel tank capacity - Gal5
Drive typeJet Drive
Drive typeOutboard
Engine max500 hp
Engine max500 hp
Operational Info
Maximum capacity1,800 lbs
Maximum capacitynot available
Maximum people8 / 1,750 lbs
Maximum peoplenot available