Detailed Evaluation & Buyer Recommendation
ThunderJet Alexis - 21 ft. 2008 vs ThunderJet Alexis Offshore 2012: Same Brand, Different Boat
The ThunderJet Alexis - 21 ft. 2008 is a modified-V design and the ThunderJet Alexis Offshore 2012 is a deep-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
The power gap is worth calling out. Rated to 425 hp, the ThunderJet Alexis - 21 ft. 2008 has a 125-hp advantage over the ThunderJet Alexis Offshore 2012's 300-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads - 50 gal and 48 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The ThunderJet Alexis - 21 ft. 2008 is rated for 8 passengers, while the ThunderJet Alexis Offshore 2012 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 - 21 ft. 2008 could be the deciding factor.
Bottom line: Choose the ThunderJet Alexis - 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 Offshore 2012 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 - 21 ft.
ModelAlexis Offshore
Model Year2008
Model Year2012
Measurements / Dimensions
Beam - Meters2.44
Beam - Meters2.59
Beam - Inches96
Beam - Inches102
Width [transom] - Detail34 in.
Width [transom] - DetailBottom: 84 in.
Height - DetailSides: 34 in.
Height - DetailSides: 40 in.
Height - Meters0.86
Height - Meters1.02
Height - Inches34
Height - Inches40
Length - Feet21
Length - Feet22
Length overall - Detail21 ft. 0 in.
Length overall - Detail22 ft.
Length overall - Meters6.4
Length overall - Meters6.71
Length overall - Inches252
Length overall - Inches264
Deadrisenot available
Deadrise18°
Weight - Detailnot available
Weight - Detail2,500 lbs. With 1/2 Hard Top: 2,950 lbs. With Full Hard Top: 3,100 lbs.
Weight - kgnot available
Weight - kg1406.14
Weight - lbs.not available
Weight - lbs.3100
Height [transom]not available
Height [transom]40 in.
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thickness0.190 in.
Hull thicknessSide: 0.125 in. Bottom: 0.190 in. Transom: 0.250 in.
Hull typeModified Vee
Hull typeDeep Vee
Engine and Drivetrain
Engine/s standardCarbureted Vortec 350
Engine/s standardnot available
Jet pumpAmerican Turbine SD 309
Jet pumpnot available
Fuel tank capacity - Detail50 gal.
Fuel tank capacity - Detail48 gal.
Fuel tank capacity - Liters189.27
Fuel tank capacity - Liters181.7
Fuel tank capacity - Gal50
Fuel tank capacity - Gal48
Drive typeJet Drive
Drive typeOutboard
Engine max425 hp
Engine max300 hp
Operational Info
Maximum capacity1,800 lbs.
Maximum capacitynot available
Maximum people8 / 1,750 lbs.
Maximum peoplenot available
Trailer Info
Trailer - Detailnot available
Trailer - DetailGateway 5,200 lbs. capacity galvanized tandem axle bunk trailer