Duckworth Silverwing Inboard 20 ft. 2007 vs Duckworth Silverwing Inboard 21 ft. 2007 - Boat Spec Comparison

Q: Which is the larger boat — the Duckworth Silverwing Inboard 20 ft. 2007 or the Duckworth Silverwing Inboard 21 ft. 2007?

The Duckworth Silverwing Inboard 21 ft. 2007 is the longer of the two at 21,0 feet overall. The Duckworth Silverwing Inboard 20 ft. 2007 comes in at 2,0 feet, making it roughly 19,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: How many people can each boat hold?

The Duckworth Silverwing Inboard 20 ft. 2007 is Coast Guard rated for 6 passengers, while the Duckworth Silverwing Inboard 21 ft. 2007 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.

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

Both the Duckworth Silverwing Inboard 20 ft. 2007 and Duckworth Silverwing Inboard 21 ft. 2007 share an 93.5 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: How do the fuel tanks compare on the Duckworth Silverwing Inboard 20 ft. 2007 and Duckworth Silverwing Inboard 21 ft. 2007?

Both boats carry similar fuel loads — 62 gallons and 62 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Q: Are the Duckworth Silverwing Inboard 20 ft. 2007 and Duckworth Silverwing Inboard 21 ft. 2007 from the same manufacturer?

Yes — both the Duckworth Silverwing Inboard 20 ft. 2007 and the Duckworth Silverwing Inboard 21 ft. 2007 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 Silverwing Inboard 20 ft. 2007 vs Duckworth Silverwing Inboard 21 ft. 2007

Duckworth

Duckworth Silverwing Inboard 20 ft. 2007

2007

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Duckworth

Duckworth Silverwing Inboard 21 ft. 2007

2007

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Detailed Evaluation & Buyer Recommendation

Duckworth Silverwing Inboard 20 ft. 2007 vs Duckworth Silverwing Inboard 21 ft. 2007 — Which Deep Vee Fits Your Needs?

When two boats share the same hull type — in this case both the Duckworth Silverwing Inboard 20 ft. 2007 and the Duckworth Silverwing Inboard 21 ft. 2007 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?

Both boats are rated for 6 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Duckworth Silverwing Inboard 21 ft. 2007 at 21,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Duckworth Silverwing Inboard 20 ft. 2007 at 2,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.

General Boat Info

MakeDuckworth

ModelSilverwing Inboard 20 ft

ModelSilverwing Inboard 21 ft

Model Year2007

Measurements / Dimensions

Beam93.5 in

Beam - Meters2.39

Beam - Inches93.5

Deadrise14℃ at transom

Width [transom] - Detail72 in

Height - Detail32 in

Height - Meters0.81

Height - Inches32

Length - Feet2

Length - Feet21

Length overall - Detail20 ft. 0 in

Length overall - Detail21 ft. 0 in

Length overall - Meters6.1

Length overall - Meters6.4

Length overall - Inches24

Length overall - Inches252

Body / Hull

Hull materialAluminum

Hull thickness0.125 in

Hull typeDeep vee

Engine and Drivetrain

Engine/s standardGM 350 V-8

Fuel tank capacity - Detail62 gal

Fuel tank capacity - Liters234.7

Fuel tank capacity - Gal62

Fuel typeGas

Drive typeInboard

Duckworth Silverwing Inboard 20 ft. 2007 vs Duckworth Silverwing Inboard 21 ft. 2007 — Common Questions

Which is the larger boat — the Duckworth Silverwing Inboard 20 ft. 2007 or the Duckworth Silverwing Inboard 21 ft. 2007?

The Duckworth Silverwing Inboard 21 ft. 2007 is the longer of the two at 21,0 feet overall. The Duckworth Silverwing Inboard 20 ft. 2007 comes in at 2,0 feet, making it roughly 19,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

How many people can each boat hold?

The Duckworth Silverwing Inboard 20 ft. 2007 is Coast Guard rated for 6 passengers, while the Duckworth Silverwing Inboard 21 ft. 2007 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 Silverwing Inboard 20 ft. 2007 and Duckworth Silverwing Inboard 21 ft. 2007 share an 93.5 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 Duckworth Silverwing Inboard 20 ft. 2007 and Duckworth Silverwing Inboard 21 ft. 2007?

Both boats carry similar fuel loads — 62 gallons and 62 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Are the Duckworth Silverwing Inboard 20 ft. 2007 and Duckworth Silverwing Inboard 21 ft. 2007 from the same manufacturer?

Yes — both the Duckworth Silverwing Inboard 20 ft. 2007 and the Duckworth Silverwing Inboard 21 ft. 2007 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 Silverwing Inboard 20 ft. 2007 full specs ← Duckworth Silverwing Inboard 21 ft. 2007 full specs