Duckworth Pro 721 2013 vs Duckworth Silverwing Inboard 21 ft. 2007 - Boat Spec Comparison

Q: Which is the larger boat — the Duckworth Pro 721 2013 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 Pro 721 2013 comes in at 21,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: How many people can each boat hold?

The Duckworth Pro 721 2013 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: Which boat is wider, and does it affect trailering?

The Duckworth Pro 721 2013 measures 102" wide, compared to 94" for the Duckworth Silverwing Inboard 21 ft. 2007. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.

Q: Which boat has the larger fuel tank — the Duckworth Pro 721 2013 or the Duckworth Silverwing Inboard 21 ft. 2007?

The Duckworth Silverwing Inboard 21 ft. 2007 has the bigger tank at 62 gallons, versus 42 gallons on the Duckworth Pro 721 2013. That 20-gallon difference translates to roughly 60–100 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Duckworth Pro 721 2013 and Duckworth Silverwing Inboard 21 ft. 2007 from the same manufacturer?

Yes — both the Duckworth Pro 721 2013 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 Pro 721 2013 vs Duckworth Silverwing Inboard 21 ft. 2007

Duckworth

Duckworth Pro 721 2013

2013

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Duckworth

Duckworth Silverwing Inboard 21 ft. 2007

2007

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Detailed Evaluation & Buyer Recommendation

Duckworth Pro 721 2013 vs Duckworth Silverwing Inboard 21 ft. 2007 — Same Brand, Different Boat

Matching a modified vee Duckworth Pro 721 2013 against a deep vee Duckworth Silverwing Inboard 21 ft. 2007 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

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 Pro 721 2013 and Duckworth Silverwing Inboard 21 ft. 2007 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.

General Boat Info

MakeDuckworth

ModelPro 721

ModelSilverwing Inboard 21 ft

Model Year2013

Model Year2007

Measurements / Dimensions

Beam102 in

Beam93.5 in

Beam - Meters2.59

Beam - Meters2.39

Beam - Inches102

Beam - Inches93.5

DeadriseTransom: 10° constant

Deadrise14℃ at transom

Weight - Detail1,600 lbs

Weight - Detailnot available

Weight - kg725.75

Weight - kgnot available

Weight - lbs.16

Weight - lbs.not available

Width [transom] - Detail84 in

Width [transom] - Detail72 in

Height - DetailSides: 31 in

Height - Detail32 in

Height - Meters0.79

Height - Meters0.81

Height - Inches31

Height - Inches32

Length - Feet21

Length overall - Detail21 ft

Length overall - Detail21 ft. 0 in

Length overall - Meters6.4

Length overall - Inches252

Body / Hull

Hull materialAluminum

Hull thicknessBottom (with full length delta pad): 0.190 in. Sides: 0.125 in

Hull thickness0.125 in

Hull typeModified Vee

Hull typeDeep vee

Engine and Drivetrain

Fuel tank capacity - Detail42 gal

Fuel tank capacity - Detail62 gal

Fuel tank capacity - Liters158.99

Fuel tank capacity - Liters234.7

Fuel tank capacity - Gal42

Fuel tank capacity - Gal62

Fuel typeGas

Drive typeOutboard

Drive typeInboard

Engine/s standardnot available

Engine/s standardGM 350 V-8

Duckworth Pro 721 2013 vs Duckworth Silverwing Inboard 21 ft. 2007 — Common Questions

Which is the larger boat — the Duckworth Pro 721 2013 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 Pro 721 2013 comes in at 21,0 feet, making it roughly 0,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

How many people can each boat hold?

The Duckworth Pro 721 2013 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.

Which boat is wider, and does it affect trailering?

The Duckworth Pro 721 2013 measures 102" wide, compared to 94" for the Duckworth Silverwing Inboard 21 ft. 2007. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.

Which boat has the larger fuel tank — the Duckworth Pro 721 2013 or the Duckworth Silverwing Inboard 21 ft. 2007?

The Duckworth Silverwing Inboard 21 ft. 2007 has the bigger tank at 62 gallons, versus 42 gallons on the Duckworth Pro 721 2013. That 20-gallon difference translates to roughly 60–100 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Duckworth Pro 721 2013 and Duckworth Silverwing Inboard 21 ft. 2007 from the same manufacturer?

Yes — both the Duckworth Pro 721 2013 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 Pro 721 2013 full specs ← Duckworth Silverwing Inboard 21 ft. 2007 full specs