Duckworth Offshore 28 2012 boat specs
Duckworth
Duckworth Offshore 28 2012
2012
View full specs →
VS
Duckworth Ultra Magnum Inboard Jet 22 2013 boat specs
Duckworth
Duckworth Ultra Magnum Inboard Jet 22 2013
2013
View full specs →

Duckworth Offshore 28 2012 vs Duckworth Ultra Magnum Inboard Jet 22 2013 — Which Deep Vee Fits Your Needs?

When two boats share the same hull type — in this case both the Duckworth Offshore 28 2012 and the Duckworth Ultra Magnum Inboard Jet 22 2013 are deep vee designs with aluminum construction — 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?

Size is the most obvious dividing line here. The Duckworth Ultra Magnum Inboard Jet 22 2013 measures 22,0 feet overall (2013), giving it roughly 19,0 additional feet of deck space compared to the Duckworth Offshore 28 2012 at 3,0 feet (2012). Weight tells a clearer story for trailering families: the Duckworth Ultra Magnum Inboard Jet 22 2013 tips the scales at 331 lbs — 280 lbs less than the Duckworth Offshore 28 2012 at 51 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.

The Duckworth Offshore 28 2012 carries a rated maximum of 5 hp. Engine data for the Duckworth Ultra Magnum Inboard Jet 22 2013 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Duckworth Offshore 28 2012 carries 175 gallons versus 62 gallons in the Duckworth Ultra Magnum Inboard Jet 22 2013. 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 Duckworth Offshore 28 2012 is rated for 9 passengers, while the Duckworth Ultra Magnum Inboard Jet 22 2013 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Duckworth Offshore 28 2012 could be the deciding factor.

Bottom line: Choose the Duckworth Offshore 28 2012 if your priority is putting more people on the water — it handles 9 passengers and at 3,0 ft it has the deck room to back that rating up comfortably. The Duckworth Ultra Magnum Inboard Jet 22 2013 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
ModelOffshore 28
ModelUltra Magnum Inboard Jet 22
Model Year2012
Model Year2013
Measurements / Dimensions
Beam102 in
Beam102 in
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
DeadriseBow: 60° Transom: 20°
DeadriseTransom: 12°
Weight - Detail5,100 lbs
Weight - Detail3,310 lbs
Weight - kg2313.32
Weight - kg1501.39
Weight - lbs.51
Weight - lbs.331
Width [transom] - Detail96 in
Width [transom] - Detail84 in
Height - DetailSides: 40 in
Height - DetailSides: 36 in
Height - Meters1.02
Height - Meters0.91
Height - Inches4
Height - Inches36
Length - Feet3
Length - Feet22
Length overall - Detail30 ft. (including bracket)
Length overall - Detail22 ft
Length overall - Meters9.14
Length overall - Meters6.71
Length overall - Inches36
Length overall - Inches264
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull thicknessBeam: 0.190 in. 5086-H116 Bottom (with reverse chine): 0.250 in. 5086-H116 Sides: 0.160 in. 5086-H116
Hull thicknessBottom: 0.190 in. Sides: 0.125 in
Hull typeDeep Vee
Hull typeDeep Vee
Engine and Drivetrain
Fuel tank capacity - Detail130 gal. Optional: 175 gal
Fuel tank capacity - Detail62 gal
Fuel tank capacity - Liters662.45
Fuel tank capacity - Liters234.7
Fuel tank capacity - Gal175
Fuel tank capacity - Gal62
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeInboard
HorsepowerMaximum: 5
Horsepowernot available
Engine modelnot available
Engine model5.7 l MEFI-5 (catalyzed)
Impellernot available
ImpellerTurbo
Jet pumpnot available
Jet pumpHamilton 212

Duckworth Offshore 28 2012 vs Duckworth Ultra Magnum Inboard Jet 22 2013 — Common Questions

Which is the larger boat — the Duckworth Offshore 28 2012 or the Duckworth Ultra Magnum Inboard Jet 22 2013?
The Duckworth Ultra Magnum Inboard Jet 22 2013 is the longer of the two at 22,0 feet overall. The Duckworth Offshore 28 2012 comes in at 3,0 feet, making it roughly 19,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Duckworth Offshore 28 2012 or the Duckworth Ultra Magnum Inboard Jet 22 2013?
For trailering, the Duckworth Offshore 28 2012 has the edge at 51 lbs dry weight versus 331 lbs for the Duckworth Ultra Magnum Inboard Jet 22 2013. 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.
What is the maximum horsepower rating for these boats?
The Duckworth Offshore 28 2012 has a documented max rating of 5 hp. Engine specifications for the Duckworth Ultra Magnum Inboard Jet 22 2013 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 Duckworth Offshore 28 2012 is Coast Guard rated for 9 passengers, while the Duckworth Ultra Magnum Inboard Jet 22 2013 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 Duckworth Offshore 28 2012 and Duckworth Ultra Magnum Inboard Jet 22 2013 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 Offshore 28 2012 or the Duckworth Ultra Magnum Inboard Jet 22 2013?
The Duckworth Offshore 28 2012 has the bigger tank at 175 gallons, versus 62 gallons on the Duckworth Ultra Magnum Inboard Jet 22 2013. That 113-gallon difference translates to roughly 339–565 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Duckworth Offshore 28 2012 and Duckworth Ultra Magnum Inboard Jet 22 2013 from the same manufacturer?
Yes — both the Duckworth Offshore 28 2012 and the Duckworth Ultra Magnum Inboard Jet 22 2013 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.