Duckworth Pacific Magnum 21 ft. 2007 vs Duckworth Ultra Magnum Inboard Jet 24 2012 - Boat Spec Comparison

Q: Which is the larger boat — the Duckworth Pacific Magnum 21 ft. 2007 or the Duckworth Ultra Magnum Inboard Jet 24 2012?

The Duckworth Ultra Magnum Inboard Jet 24 2012 is the longer of the two at 24,0 feet overall. The Duckworth Pacific Magnum 21 ft. 2007 comes in at 21,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: How many people can each boat hold?

The Duckworth Pacific Magnum 21 ft. 2007 is Coast Guard rated for 6 passengers, while the Duckworth Ultra Magnum Inboard Jet 24 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.

Q: Do these boats require an oversize trailer permit to tow on US highways?

Both the Duckworth Pacific Magnum 21 ft. 2007 and Duckworth Ultra Magnum Inboard Jet 24 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.

Q: Which boat has the larger fuel tank — the Duckworth Pacific Magnum 21 ft. 2007 or the Duckworth Ultra Magnum Inboard Jet 24 2012?

The Duckworth Pacific Magnum 21 ft. 2007 has the bigger tank at 62 gallons, versus 8 gallons on the Duckworth Ultra Magnum Inboard Jet 24 2012. That 54-gallon difference translates to roughly 162–270 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Duckworth Pacific Magnum 21 ft. 2007 and Duckworth Ultra Magnum Inboard Jet 24 2012 from the same manufacturer?

Yes — both the Duckworth Pacific Magnum 21 ft. 2007 and the Duckworth Ultra Magnum Inboard Jet 24 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.

Boat Comparison

Duckworth Pacific Magnum 21 ft. 2007 vs Duckworth Ultra Magnum Inboard Jet 24 2012

Duckworth

Duckworth Pacific Magnum 21 ft. 2007

2007

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Duckworth

Duckworth Ultra Magnum Inboard Jet 24 2012

2012

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Detailed Evaluation & Buyer Recommendation

Duckworth Pacific Magnum 21 ft. 2007 vs Duckworth Ultra Magnum Inboard Jet 24 2012 — A Close Look at Two Deep Vees

When two boats share the same hull type — in this case both the Duckworth Pacific Magnum 21 ft. 2007 and the Duckworth Ultra Magnum Inboard Jet 24 2012 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?

For family outings this is probably the sharpest distinction between the two. The Duckworth Ultra Magnum Inboard Jet 24 2012 is rated for 7 passengers, while the Duckworth Pacific Magnum 21 ft. 2007 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 24 2012 could be the deciding factor.

Bottom line: Choose the Duckworth Ultra Magnum Inboard Jet 24 2012 if your priority is putting more people on the water — it handles 7 passengers and at 24,0 ft it has the deck room to back that rating up comfortably. The Duckworth Pacific Magnum 21 ft. 2007 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

ModelPacific Magnum 21 ft

ModelUltra Magnum Inboard Jet 24

Model Year2007

Model Year2012

Measurements / Dimensions

Beam102 in

Beam - Meters2.59

Beam - Inches102

Deadrise18℃ at transom

DeadriseTransom: 12°

Width [transom] - Detail78 in

Width [transom] - Detail84 in

Height - Detail36 in

Height - DetailSides: 36 in

Height - Meters0.91

Height - Inches36

Length - Feet21

Length - Feet24

Length overall - Detail21 ft. 0 in

Length overall - Detail24 ft

Length overall - Meters6.4

Length overall - Meters7.32

Length overall - Inches252

Length overall - Inches288

Weight - Detailnot available

Weight - Detail3,720 lbs

Weight - kgnot available

Weight - kg1687.36

Weight - lbs.not available

Weight - lbs.372

Body / Hull

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 standardYamaha

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 - Gal8

Fuel typeGas

Drive typeOutboard

Drive typeInboard

Engine modelnot available

Engine model6.0 l MEFI-5 (catalyzed)

Impellernot available

ImpellerTurbo

Jet pumpnot available

Jet pumpHamilton 212

Duckworth Pacific Magnum 21 ft. 2007 vs Duckworth Ultra Magnum Inboard Jet 24 2012 — Common Questions

Which is the larger boat — the Duckworth Pacific Magnum 21 ft. 2007 or the Duckworth Ultra Magnum Inboard Jet 24 2012?

The Duckworth Ultra Magnum Inboard Jet 24 2012 is the longer of the two at 24,0 feet overall. The Duckworth Pacific Magnum 21 ft. 2007 comes in at 21,0 feet, making it roughly 3,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

How many people can each boat hold?

The Duckworth Pacific Magnum 21 ft. 2007 is Coast Guard rated for 6 passengers, while the Duckworth Ultra Magnum Inboard Jet 24 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 Pacific Magnum 21 ft. 2007 and Duckworth Ultra Magnum Inboard Jet 24 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 Pacific Magnum 21 ft. 2007 or the Duckworth Ultra Magnum Inboard Jet 24 2012?

The Duckworth Pacific Magnum 21 ft. 2007 has the bigger tank at 62 gallons, versus 8 gallons on the Duckworth Ultra Magnum Inboard Jet 24 2012. That 54-gallon difference translates to roughly 162–270 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Duckworth Pacific Magnum 21 ft. 2007 and Duckworth Ultra Magnum Inboard Jet 24 2012 from the same manufacturer?

Yes — both the Duckworth Pacific Magnum 21 ft. 2007 and the Duckworth Ultra Magnum Inboard Jet 24 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.

← Duckworth Pacific Magnum 21 ft. 2007 full specs ← Duckworth Ultra Magnum Inboard Jet 24 2012 full specs