Crownline 21 SS 2009 boat specs
Crownline
Crownline 21 SS 2009
2009
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VS
Crownline 270 BR 2006 boat specs
Crownline
Crownline 270 BR 2006
2006
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Crownline 21 SS 2009 vs Crownline 270 BR 2006 — Same Brand, Different Boat

The Crownline 21 SS 2009 vs Crownline 270 BR 2006 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 2006 measures 28,0 feet overall (2006), giving it roughly 26,0 additional feet of deck space compared to the Crownline 21 SS 2009 at 2,0 feet (2009). At 37 lbs and 55 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 425 hp, the Crownline 270 BR 2006 has a 105-hp advantage over the Crownline 21 SS 2009'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 2006 carries 84 gallons versus 41 gallons in the Crownline 21 SS 2009. 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 270 BR 2006 is rated for 8 passengers, while the Crownline 21 SS 2009 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crownline 270 BR 2006 could be the deciding factor.

Bottom line: Choose the Crownline 270 BR 2006 if your priority is putting more people on the water — it handles 8 passengers and at 28,0 ft it has the deck room to back that rating up comfortably. The Crownline 21 SS 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.
General Boat Info
MakeCrownline
MakeCrownline
Model21 SS
Model270 BR
Model Year2009
Model Year2006
Measurements / Dimensions
Beam102 in. (2.59 m)
Beam102 in. (2.59 m)
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
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] - Inches3
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.37
Weight - lbs.55
Length - Meters6.35
Length - Meters8.61
Length - Feet2
Length - Feet28
Length - Inches1
Length - Inches3
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 - Inches25
Length overall - Inches339
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 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
Fuel typenot available
Drive typeI/O
Drive typeI/O
Horsepower220 php
Horsepowernot available
Engine max320 hp
Engine max425 hp
Engine/s standardnot available
Engine/s standard5.7 l Bravo III 250 hp
Operational Info
Maximum capacity1,442 lbs. (654 kg)
Maximum capacitynot available
Maximum people1
Maximum peoplenot available
Water capacitynot available
Water capacity20 gal

Crownline 21 SS 2009 vs Crownline 270 BR 2006 — Common Questions

Which is the larger boat — the Crownline 21 SS 2009 or the Crownline 270 BR 2006?
The Crownline 270 BR 2006 is the longer of the two at 28,0 feet overall. The Crownline 21 SS 2009 comes in at 2,0 feet, making it roughly 26,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Crownline 21 SS 2009 or the Crownline 270 BR 2006?
For trailering, the Crownline 21 SS 2009 has the edge at 37 lbs dry weight versus 55 lbs for the Crownline 270 BR 2006. 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 2006 is rated to a maximum of 425 hp, giving it the larger power ceiling. The Crownline 21 SS 2009 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 2009 is Coast Guard rated for 1 passengers, while the Crownline 270 BR 2006 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 2009 and Crownline 270 BR 2006 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 2009 or the Crownline 270 BR 2006?
The Crownline 270 BR 2006 has the bigger tank at 84 gallons, versus 41 gallons on the Crownline 21 SS 2009. 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 2009 and Crownline 270 BR 2006 from the same manufacturer?
Yes — both the Crownline 21 SS 2009 and the Crownline 270 BR 2006 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.