ThunderJet Alexis OB OS 2011 boat specs
ThunderJet
ThunderJet Alexis OB OS 2011
2011
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VS
ThunderJet Denali 2012 boat specs
ThunderJet
ThunderJet Denali 2012
2012
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ThunderJet Alexis OB OS 2011 vs ThunderJet Denali 2012 — Same Brand, Different Boat

Matching a deep vee ThunderJet Alexis OB OS 2011 against a modified vee ThunderJet Denali 2012 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

The ThunderJet Alexis OB OS 2011 carries a rated maximum of 300 hp. Engine data for the ThunderJet Denali 2012 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Both carry nearly identical fuel loads — 48 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 OB OS 2011 is rated for 6 passengers, while the ThunderJet Denali 2012 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 OB OS 2011 could be the deciding factor.

Bottom line: Choose the ThunderJet Alexis OB OS 2011 if your priority is putting more people on the water — it handles 6 passengers and at 22,0 ft it has the deck room to back that rating up comfortably. The ThunderJet Denali 2012 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 OB OS
ModelDenali
Model Year2011
Model Year2012
Measurements / Dimensions
Beam102 in
Beam90 in
Beam - Meters2.59
Beam - Meters2.29
Beam - Inches102
Beam - Inches9
Deadrise18°
Deadrise6°
Height - DetailSides: 40 in
Height - DetailSides: 28 in
Height - Meters1.02
Height - Meters0.71
Height - Inches4
Height - Inches28
Height [transom]40 in
Height [transom]28 in
Length - Feet22
Length - Feet18
Length overall - Detail22 ft
Length overall - Detail18 ft
Length overall - Meters6.71
Length overall - Meters5.49
Length overall - Inches264
Length overall - Inches216
Weight - Detailnot available
Weight - Detail1,900 lbs
Weight - kgnot available
Weight - kg861.82
Weight - lbs.not available
Weight - lbs.19
Width [transom] - Detailnot available
Width [transom] - DetailBottom: 78 in
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessSides: 0.125 in. Bottom: 0.190 in. Transom: 0.190 in
Hull thicknessSides: 0.125 in. Bottom: 0.190 in. Transom: 0.190 in
Hull typeDeep Vee
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail48 gal
Fuel tank capacity - Detail48 gal
Fuel tank capacity - Liters181.7
Fuel tank capacity - Liters181.7
Fuel tank capacity - Gal48
Fuel tank capacity - Gal48
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeJet Drive
Engine max300 hp
Engine maxnot available
Engine/s standardnot available
Engine/s standard200 Mercury Optimax Sport Jet 60&#176 direct fuel injected V-6
Exhaustnot available
ExhaustTuned thru transom exhaust with dual mufflers
Impellernot available
Impeller4-blade progressive pitch SST
Jet pumpnot available
Jet pumpMixed flow high volume
Trailer Info
Trailer - Detailnot available
Trailer - DetailGateway 3,980 lbs. capacity galvanized single axle bunk

ThunderJet Alexis OB OS 2011 vs ThunderJet Denali 2012 — Common Questions

Which is the larger boat — the ThunderJet Alexis OB OS 2011 or the ThunderJet Denali 2012?
The ThunderJet Alexis OB OS 2011 is the longer of the two at 22,0 feet overall. The ThunderJet Denali 2012 comes in at 18,0 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 Alexis OB OS 2011 has a documented max rating of 300 hp. Engine specifications for the ThunderJet Denali 2012 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 OB OS 2011 is Coast Guard rated for 6 passengers, while the ThunderJet Denali 2012 is certified for 5. 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 Alexis OB OS 2011 measures 102" wide, compared to 9" for the ThunderJet Denali 2012. 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.
How do the fuel tanks compare on the ThunderJet Alexis OB OS 2011 and ThunderJet Denali 2012?
Both boats carry similar fuel loads — 48 gallons and 48 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the ThunderJet Alexis OB OS 2011 and ThunderJet Denali 2012 from the same manufacturer?
Yes — both the ThunderJet Alexis OB OS 2011 and the ThunderJet Denali 2012 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.