ThunderJet Denali 2011 boat specs
ThunderJet
ThunderJet Denali 2011
2011
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VS
ThunderJet Havasu 2009 boat specs
ThunderJet
ThunderJet Havasu 2009
2009
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ThunderJet Denali 2011 vs ThunderJet Havasu 2009: A Close Look at Two Modified-V Boats

Both the ThunderJet Denali 2011 and the ThunderJet Havasu 2009 are modified-V designs, both built in aluminium, so 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 Havasu 2009 tops out at 250 hp. Engine specs for the ThunderJet Denali 2011 aren't listed - confirm with a dealer before selecting an outboard.Both carry nearly identical fuel loads - 48 gal and 50 gal - so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The ThunderJet Havasu 2009 is rated for 6 passengers, while the ThunderJet Denali 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 Havasu 2009 could be the deciding factor.

Bottom line: Choose the ThunderJet Havasu 2009 if your priority is putting more people on the water - it handles 6 passengers and at 20,0 ft it has the deck room to back that rating up comfortably. The ThunderJet Denali 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
ModelDenali
ModelHavasu
Model Year2011
Model Year2009
Measurements / Dimensions
Beam90 in.
Beam90 in.
Beam - Meters2.29
Beam - Meters2.29
Beam - Inches90
Beam - Inches90
Deadrise6°
Deadrise12° Entry: 40° Engine: 14°
Height - DetailSides: 25 in.
Height - Detailnot available
Height - Meters0.64
Height - Metersnot available
Height - Inches25
Height - Inchesnot available
Height [transom]25 in.
Height [transom]31 in.
Length - Feet18
Length - Feet20
Length overall - Detail18 ft.
Length overall - Detail20 ft. 0 in.
Length overall - Meters5.49
Length overall - Meters6.1
Length overall - Inches216
Length overall - Inches240
Weight - Detailnot available
Weight - Detail2,600 lbs.
Weight - kgnot available
Weight - kg1179.34
Weight - lbs.not available
Weight - lbs.2600
Width [transom] - Detailnot available
Width [transom] - Detail72 in.
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessSides: 0.125 in. Bottom: 0.190 in. Transom: 0.190 in.
Hull thicknessnot available
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Engine/s standard200 hp Mercury Optimax Sport Jet
Engine/s standardnot available
Fuel tank capacity - Detail48 gal.
Fuel tank capacity - Detail50 gal.
Fuel tank capacity - Liters181.7
Fuel tank capacity - Liters189.27
Fuel tank capacity - Gal48
Fuel tank capacity - Gal50
Fuel typeGas
Fuel typeGas
Drive typeJet Drive
Drive typeInboard
Horsepowernot available
Horsepower250

ThunderJet Denali 2011 vs ThunderJet Havasu 2009 - Common Questions

Which is the larger boat - the ThunderJet Denali 2011 or the ThunderJet Havasu 2009?
The ThunderJet Havasu 2009 is the longer of the two at 20,0 feet overall. The ThunderJet Denali 2011 comes in at 18,0 feet, making it roughly 2,0 ft shorter - a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The ThunderJet Havasu 2009 has a documented max rating of 250 hp. Engine specifications for the ThunderJet Denali 2011 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 Denali 2011 is Coast Guard rated for 5 passengers, while the ThunderJet Havasu 2009 is certified for 6. 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the ThunderJet Denali 2011 and ThunderJet Havasu 2009 share an 90 in. beam - meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
How do the fuel tanks compare on the ThunderJet Denali 2011 and ThunderJet Havasu 2009?
Both boats carry similar fuel loads - 48 gallons and 50 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 Denali 2011 and ThunderJet Havasu 2009 from the same manufacturer?
Yes - both the ThunderJet Denali 2011 and the ThunderJet Havasu 2009 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.