Duckworth Ultra Magnum Inboard 22 ft. 2008 boat specs
Duckworth
Duckworth Ultra Magnum Inboard 22 ft. 2008
2008
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VS
Duckworth Ultra Magnum Inboard Jet 23 2012 boat specs
Duckworth
Duckworth Ultra Magnum Inboard Jet 23 2012
2012
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Duckworth Ultra Magnum Inboard 22 ft. 2008 vs Duckworth Ultra Magnum Inboard Jet 23 2012: A Close Look at Two Deep-V Boats

Both the Duckworth Ultra Magnum Inboard 22 ft. 2008 and the Duckworth Ultra Magnum Inboard Jet 23 2012 are deep-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?

On paper these two are close siblings in the size department - Duckworth Ultra Magnum Inboard 22 ft. 2008 at 22,0 ft versus Duckworth Ultra Magnum Inboard Jet 23 2012 at 23,0 ft. Weight tells a clearer story for trailering families: the Duckworth Ultra Magnum Inboard Jet 23 2012 tips the scales at 3 610 lbs - 300 lbs less than the Duckworth Ultra Magnum Inboard 22 ft. 2008 at 3 310 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

For family outings this is probably the sharpest distinction between the two. The Duckworth Ultra Magnum Inboard Jet 23 2012 is rated for 7 passengers, while the Duckworth Ultra Magnum Inboard 22 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 Duckworth Ultra Magnum Inboard Jet 23 2012 could be the deciding factor.

Bottom line: Choose the Duckworth Ultra Magnum Inboard Jet 23 2012 if your priority is putting more people on the water - it handles 7 passengers and at 23,0 ft it has the deck room to back that rating up comfortably. The Duckworth Ultra Magnum Inboard 22 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
MakeDuckworth
MakeDuckworth
ModelUltra Magnum Inboard 22 ft.
ModelUltra Magnum Inboard Jet 23
Model Year2008
Model Year2012
Measurements / Dimensions
Beam102 in.
Beam102 in.
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Deadrise12℃ at transom
DeadriseTransom: 12°
Weight - Detail3,310 lbs.
Weight - Detail3,610 lbs.
Weight - kg1501.39
Weight - kg1637.47
Weight - lbs.3310
Weight - lbs.3610
Width [transom] - Detail84 in. (5086-H116)
Width [transom] - Detail84 in.
Height - Detail36 in. (5052-H32)
Height - DetailSides: 36 in.
Height - Meters0.91
Height - Meters0.91
Height - Inches36
Height - Inches36
Length - Feet22
Length - Feet23
Length overall - Detail22 ft.
Length overall - Detail23 ft.
Length overall - Meters6.71
Length overall - Meters7.01
Length overall - Inches264
Length overall - Inches276
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thickness0.125 in.
Hull thicknessBottom: 0.190 in. 5086-H116 Sides: 0.125 in. 5052-H32
Hull typeDeep vee
Hull typeDeep Vee
Engine and Drivetrain
Engine/s standard350 Marine Power Carb V-8
Engine/s standardnot available
Fuel tank capacity - Detail62 gal.
Fuel tank capacity - Detail80 gal.
Fuel tank capacity - Liters234.7
Fuel tank capacity - Liters302.83
Fuel tank capacity - Gal62
Fuel tank capacity - Gal80
Fuel typeGas
Fuel typeGas
Drive typeInboard
Drive typeInboard
Engine modelnot available
Engine model6.0 l MEFI-5 (catalyzed)
Impellernot available
ImpellerTurbo
Jet pumpnot available
Jet pumpHamilton 212

Duckworth Ultra Magnum Inboard 22 ft. 2008 vs Duckworth Ultra Magnum Inboard Jet 23 2012 - Common Questions

Which is the larger boat - the Duckworth Ultra Magnum Inboard 22 ft. 2008 or the Duckworth Ultra Magnum Inboard Jet 23 2012?
The Duckworth Ultra Magnum Inboard Jet 23 2012 is the longer of the two at 23,0 feet overall. The Duckworth Ultra Magnum Inboard 22 ft. 2008 comes in at 22,0 feet, making it roughly 1,0 ft shorter - a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer - the Duckworth Ultra Magnum Inboard 22 ft. 2008 or the Duckworth Ultra Magnum Inboard Jet 23 2012?
For trailering, the Duckworth Ultra Magnum Inboard 22 ft. 2008 has the edge at 3 310 lbs dry weight versus 3 610 lbs for the Duckworth Ultra Magnum Inboard Jet 23 2012. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
How many people can each boat hold?
The Duckworth Ultra Magnum Inboard 22 ft. 2008 is Coast Guard rated for 6 passengers, while the Duckworth Ultra Magnum Inboard Jet 23 2012 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.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Duckworth Ultra Magnum Inboard 22 ft. 2008 and Duckworth Ultra Magnum Inboard Jet 23 2012 share an 102 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.
Which boat has the larger fuel tank - the Duckworth Ultra Magnum Inboard 22 ft. 2008 or the Duckworth Ultra Magnum Inboard Jet 23 2012?
The Duckworth Ultra Magnum Inboard Jet 23 2012 has the bigger tank at 80 gallons, versus 62 gallons on the Duckworth Ultra Magnum Inboard 22 ft. 2008. That 18-gallon difference translates to roughly 54–90 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Duckworth Ultra Magnum Inboard 22 ft. 2008 and Duckworth Ultra Magnum Inboard Jet 23 2012 from the same manufacturer?
Yes - both the Duckworth Ultra Magnum Inboard 22 ft. 2008 and the Duckworth Ultra Magnum Inboard Jet 23 2012 are built by Duckworth. 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.