Detailed Evaluation & Buyer Recommendation
Thunder Jet 20 Chinook Pro 2021 vs ThunderJet Alexis - 21 ft. 2008 — Same Brand, Different Boat
The Thunder Jet 20 Chinook Pro 2021 vs ThunderJet Alexis - 21 ft. 2008 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
The ThunderJet Alexis - 21 ft. 2008 tops out at 425 hp. Engine specs for the Thunder Jet 20 Chinook Pro 2021 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Thunder Jet 20 Chinook Pro 2021 carries 72 gallons versus 5 gallons in the ThunderJet Alexis - 21 ft. 2008. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
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 Thunder Jet 20 Chinook Pro 2021 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 Thunder Jet 20 Chinook Pro 2021 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail20.00 ft
Length overall - Detail21 ft. 0 in
Length - Feet20
Length - Feet21
Length overall - Meters6.1
Length overall - Meters6.4
Length overall - Inches240
Length overall - Inches252
Beamnot available
Beam96 in
Beam - Metersnot available
Beam - Meters2.44
Beam - Inchesnot available
Beam - Inches96
Width [transom] - Detailnot available
Width [transom] - Detail34 in
Height - Detailnot available
Height - DetailSides: 34 in
Height - Metersnot available
Height - Meters0.86
Height - Inchesnot available
Height - Inches34
Engine and Drivetrain
Fuel tank capacity - Gal72
Fuel tank capacity - Gal5
Fuel tank capacity - Liters272.55
Fuel tank capacity - Liters189.27
Engine/s standardnot available
Engine/s standardCarbureted Vortec 35
Jet pumpnot available
Jet pumpAmerican Turbine SD 309
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail50 gal
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeJet Drive
Engine maxnot available
Engine max425 hp
Operational Info
Boat typePower
Boat typenot available
Maximum capacitynot available
Maximum capacity1,800 lbs
Maximum peoplenot available
Maximum people8 / 1,750 lbs
General Boat Info
Makenot available
MakeThunderJet
Modelnot available
ModelAlexis - 21 ft
Model Yearnot available
Model Year2008
Body / Hull
Hull materialnot available
Hull materialAluminum
Hull thicknessnot available
Hull thickness0.190 in
Hull typenot available
Hull typeModified Vee