Detailed Evaluation & Buyer Recommendation
ThunderJet Alexis - 21 ft. 2008 vs ThunderJet Bull Dog 18 ft. 2011 — A Close Look at Two Modified Vees
When two boats share the same hull type — in this case both the ThunderJet Alexis - 21 ft. 2008 and the ThunderJet Bull Dog 18 ft. 2011 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 - 21 ft. 2008 carries a rated maximum of 425 hp. Engine data for the ThunderJet Bull Dog 18 ft. 2011 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.
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 Bull Dog 18 ft. 2011 caps at 5. 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 Bull Dog 18 ft. 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
MakeThunderJet
MakeThunderJet
ModelAlexis - 21 ft
ModelBull Dog 18 ft
Model Year2008
Model Year2011
Measurements / Dimensions
Beam - Meters2.44
Beam - Meters2.29
Beam - Inches96
Beam - Inches9
Width [transom] - Detail34 in
Width [transom] - Detailnot available
Height - DetailSides: 34 in
Height - DetailSides: 31 in
Height - Meters0.86
Height - Meters0.79
Height - Inches34
Height - Inches31
Length - Feet21
Length - Feet18
Length overall - Detail21 ft. 0 in
Length overall - Detail18 ft
Length overall - Meters6.4
Length overall - Meters5.49
Length overall - Inches252
Length overall - Inches216
Deadrisenot available
Deadrise8°
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thickness0.190 in
Hull thicknessSides: 0.125 in. Bottom: 0.375 in. Transom: 0.250 in
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Engine/s standardCarbureted Vortec 35
Engine/s standard200 hp Mercury Sport Jet
Jet pumpAmerican Turbine SD 309
Jet pumpnot available
Fuel tank capacity - Detail50 gal
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters189.27
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal5
Fuel tank capacity - Galnot available
Drive typeJet Drive
Drive typeJet Drive
Engine max425 hp
Engine maxnot available
Operational Info
Maximum capacity1,800 lbs
Maximum capacitynot available
Maximum people8 / 1,750 lbs
Maximum peoplenot available