Crownline 21 SS 2011 vs Crownline 270 BR 2007 - Boat Spec Comparison

Q: Which is the larger boat - the Crownline 21 SS 2011 or the Crownline 270 BR 2007?

The Crownline 270 BR 2007 is the longer of the two at 28,0 feet overall. The Crownline 21 SS 2011 comes in at 20,8 feet, making it roughly 7,2 ft shorter - a meaningful difference in deck room and overall on-water presence.

Q: Which is easier to trailer - the Crownline 21 SS 2011 or the Crownline 270 BR 2007?

For trailering, the Crownline 21 SS 2011 has the edge at 3 700 lbs dry weight versus 5 500 lbs for the Crownline 270 BR 2007. 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.

Q: Which boat can handle a bigger outboard?

The Crownline 270 BR 2007 is rated to a maximum of 425 hp, giving it the larger power ceiling. The Crownline 21 SS 2011 tops out at 320 hp. Keep in mind that maximum ratings are just that - matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.

Q: How many people can each boat hold?

The Crownline 21 SS 2011 is Coast Guard rated for 10 passengers, while the Crownline 270 BR 2007 is certified for 8. 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 Crownline 21 SS 2011 and Crownline 270 BR 2007 share an 102 in. (2.59 m) 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 Crownline 21 SS 2011 or the Crownline 270 BR 2007?

The Crownline 270 BR 2007 has the bigger tank at 84 gallons, versus 41 gallons on the Crownline 21 SS 2011. That 43-gallon difference translates to roughly 129–215 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Crownline 21 SS 2011 and Crownline 270 BR 2007 from the same manufacturer?

Yes - both the Crownline 21 SS 2011 and the Crownline 270 BR 2007 are built by Crownline. 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

Crownline 21 SS 2011 vs Crownline 270 BR 2007

Crownline

Crownline 21 SS 2011

2011

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Crownline

Crownline 270 BR 2007

2007

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Detailed Evaluation & Buyer Recommendation

Crownline 21 SS 2011 vs Crownline 270 BR 2007: Same Brand, Different Boat

The Crownline 21 SS 2011 vs Crownline 270 BR 2007 comparison sits squarely in the category of decisions where specs alone won't tell the whole story: intended use, storage, and long-term ownership costs all factor in.

Size is the most obvious dividing line here. The Crownline 270 BR 2007 measures 28,0 feet overall (2007), giving it roughly 7,2 additional feet of deck space compared to the Crownline 21 SS 2011 at 20,8 feet (2011). Weight tells a clearer story for trailering families: the Crownline 270 BR 2007 tips the scales at 5 500 lbs - 1 800 lbs less than the Crownline 21 SS 2011 at 3 700 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 power gap is worth calling out. Rated to 425 hp, the Crownline 270 BR 2007 has a 105-hp advantage over the Crownline 21 SS 2011's 320-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Crownline 270 BR 2007 carries 84 gallons versus 41 gallons in the Crownline 21 SS 2011. 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 Crownline 21 SS 2011 is rated for 10 passengers, while the Crownline 270 BR 2007 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crownline 21 SS 2011 could be the deciding factor.

Bottom line: Choose the Crownline 21 SS 2011 if your priority is putting more people on the water - it handles 10 passengers and at 20,8 ft it has the deck room to back that rating up comfortably. The Crownline 270 BR 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.

General Boat Info

MakeCrownline

Model21 SS

Model270 BR

Model Year2011

Model Year2007

Measurements / Dimensions

Beam102 in. (2.59 m)

Beam - Meters2.59

Beam - Inches102

Bridge clearance - Detail49 in. (1.24 m)

Bridge clearance - Detail68 in. (1.73 m)

Bridge clearance - Meters1.24

Bridge clearance - Meters1.73

Bridge clearance - Inches49

Bridge clearance - Inches68

Deadrise16℃

Deadrise23℃

Draft [drive up] - Detail16 in. (41 cm)

Draft [drive up] - Detail21 in. (53 cm)

Draft [drive up] meters0.41

Draft [drive up] meters0.53

Draft [drive up] inches16

Draft [drive up] inches21

Draft [max] - Detail30 in. (76 cm)

Draft [max] - Detail38 in. (97 cm)

Draft [max] - Meters0.76

Draft [max] - Meters0.97

Draft [max] - Inches30

Draft [max] - Inches38

Weight - Detail3,500 - 3,700 lbs. (1,588 - 1,678 kg)

Weight - Detail5,300 - 5,500 lbs. (2,406 - 2,495 kg)

Weight - kg1678.29

Weight - kg2494.76

Weight - lbs.3700

Weight - lbs.5500

Length - Feet20.83

Length - Feet28

Length overall - Detail20 ft. 10 in. (6.35 m)

Length overall - Detail28 ft. 3 in. (8.61 m)

Length overall - Meters6.35

Length overall - Meters8.61

Length overall - Inches250

Length overall - Inches339

Length - Metersnot available

Length - Meters8.61

Length - Inchesnot available

Length - Inches3

Body / Hull

Hull materialFiberglass

Hull materialnot available

Hull typeModified Vee

Hull typenot available

Engine and Drivetrain

Engine makeMercury

Engine makenot available

Engine model5.0 l MPI Alpha

Engine modelnot available

Fuel tank capacity - Detail41 gal. (155 l)

Fuel tank capacity - Detail84 gal. (318 l)

Fuel tank capacity - Liters155.2

Fuel tank capacity - Liters317.97

Fuel tank capacity - Gal41

Fuel tank capacity - Gal84

Fuel typeGas

Drive typeI/O

Horsepower260 php

Horsepowernot available

Engine max320 php

Engine max425 hp

Engine/s standardnot available

Engine/s standardV5.7 GI DP 280 php

Operational Info

Maximum capacity1,442 lbs. (654 kg)

Maximum capacitynot available

Maximum people10

Maximum peoplenot available

Crownline 21 SS 2011 vs Crownline 270 BR 2007 - Common Questions

Which is the larger boat - the Crownline 21 SS 2011 or the Crownline 270 BR 2007?

The Crownline 270 BR 2007 is the longer of the two at 28,0 feet overall. The Crownline 21 SS 2011 comes in at 20,8 feet, making it roughly 7,2 ft shorter - a meaningful difference in deck room and overall on-water presence.

Which is easier to trailer - the Crownline 21 SS 2011 or the Crownline 270 BR 2007?

For trailering, the Crownline 21 SS 2011 has the edge at 3 700 lbs dry weight versus 5 500 lbs for the Crownline 270 BR 2007. 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.

Which boat can handle a bigger outboard?

The Crownline 270 BR 2007 is rated to a maximum of 425 hp, giving it the larger power ceiling. The Crownline 21 SS 2011 tops out at 320 hp. Keep in mind that maximum ratings are just that - matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.

How many people can each boat hold?

The Crownline 21 SS 2011 is Coast Guard rated for 10 passengers, while the Crownline 270 BR 2007 is certified for 8. 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 Crownline 21 SS 2011 and Crownline 270 BR 2007 share an 102 in. (2.59 m) 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 Crownline 21 SS 2011 or the Crownline 270 BR 2007?

The Crownline 270 BR 2007 has the bigger tank at 84 gallons, versus 41 gallons on the Crownline 21 SS 2011. That 43-gallon difference translates to roughly 129–215 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Crownline 21 SS 2011 and Crownline 270 BR 2007 from the same manufacturer?

Yes - both the Crownline 21 SS 2011 and the Crownline 270 BR 2007 are built by Crownline. 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.

← Crownline 21 SS 2011 full specs ← Crownline 270 BR 2007 full specs