ThunderJet Alexis Outboard - 21 ft. 2008 boat specs
ThunderJet
ThunderJet Alexis Outboard - 21 ft. 2008
2008
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VS
ThunderJet TJ Offshore 2011 boat specs
ThunderJet
ThunderJet TJ Offshore 2011
2011
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ThunderJet Alexis Outboard - 21 ft. 2008 vs ThunderJet TJ Offshore 2011: Same Brand, Different Boat

The ThunderJet Alexis Outboard - 21 ft. 2008 is a modified-V design and the ThunderJet TJ Offshore 2011 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 ThunderJet TJ Offshore 2011 tops out at 500 hp. Engine specs for the ThunderJet Alexis Outboard - 21 ft. 2008 aren't listed - confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the ThunderJet TJ Offshore 2011 carries 160 gallons versus 50 gallons in the ThunderJet Alexis Outboard - 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 TJ Offshore 2011 is rated for 7 passengers, while the ThunderJet Alexis Outboard - 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 TJ Offshore 2011 could be the deciding factor.

Bottom line: Choose the ThunderJet TJ Offshore 2011 if your priority is putting more people on the water - it handles 7 passengers and at 25,0 ft it has the deck room to back that rating up comfortably. The ThunderJet Alexis Outboard - 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 Outboard - 21 ft.
ModelTJ Offshore
Model Year2008
Model Year2011
Measurements / Dimensions
Beam96 in.
Beam108 in.
Beam - Meters2.44
Beam - Meters2.74
Beam - Inches96
Beam - Inches108
Width [transom] - Detail34 in.
Width [transom] - Detailnot available
Height - DetailSides: 34 in.
Height - DetailSides: 42 in.
Height - Meters0.86
Height - Meters1.07
Height - Inches34
Height - Inches42
Length - Feet21
Length - Feet25
Length overall - Detail21 ft. 0 in.
Length overall - Detail25 ft.
Length overall - Meters6.4
Length overall - Meters7.62
Length overall - Inches252
Length overall - Inches300
Deadrisenot available
DeadriseStern: 18° Entry: 55° Overall: 27.5°
Weight - Detailnot available
Weight - Detail4,800 lbs.
Weight - kgnot available
Weight - kg2177.24
Weight - lbs.not available
Weight - lbs.4800
Height [transom]not available
Height [transom]25 in.
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typeModified Vee
Hull typeDeep Vee
Hull thicknessnot available
Hull thicknessSides: 0.125 in. Bottom: 0.190 in. Transom: 0.190 in.
Engine and Drivetrain
Engine/s standardSuzuki
Engine/s standardnot available
Fuel tank capacity - Detail50 gal.
Fuel tank capacity - Detail160 gal.
Fuel tank capacity - Liters189.27
Fuel tank capacity - Liters605.67
Fuel tank capacity - Gal50
Fuel tank capacity - Gal160
Fuel typeGas
Fuel typeGas or Diesel
Drive typeOutboard
Drive typeOutboard
Max no of enginesnot available
Max no of engines2
Engine maxnot available
Engine max500 hp
Operational Info
Storagenot available
StorageFish Locker: 30 gal.

ThunderJet Alexis Outboard - 21 ft. 2008 vs ThunderJet TJ Offshore 2011 - Common Questions

Which is the larger boat - the ThunderJet Alexis Outboard - 21 ft. 2008 or the ThunderJet TJ Offshore 2011?
The ThunderJet TJ Offshore 2011 is the longer of the two at 25,0 feet overall. The ThunderJet Alexis Outboard - 21 ft. 2008 comes in at 21,0 feet, making it roughly 4,0 ft shorter - a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The ThunderJet TJ Offshore 2011 has a documented max rating of 500 hp. Engine specifications for the ThunderJet Alexis Outboard - 21 ft. 2008 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 Outboard - 21 ft. 2008 is Coast Guard rated for 6 passengers, while the ThunderJet TJ Offshore 2011 is certified for 7. 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 TJ Offshore 2011 measures 108" wide, compared to 96" for the ThunderJet Alexis Outboard - 21 ft. 2008. 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.
Which boat has the larger fuel tank - the ThunderJet Alexis Outboard - 21 ft. 2008 or the ThunderJet TJ Offshore 2011?
The ThunderJet TJ Offshore 2011 has the bigger tank at 160 gallons, versus 50 gallons on the ThunderJet Alexis Outboard - 21 ft. 2008. That 110-gallon difference translates to roughly 330–550 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the ThunderJet Alexis Outboard - 21 ft. 2008 and ThunderJet TJ Offshore 2011 from the same manufacturer?
Yes - both the ThunderJet Alexis Outboard - 21 ft. 2008 and the ThunderJet TJ Offshore 2011 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.