Bayliner 305 Sb 2005 boat specs
Bayliner
Bayliner 305 Sb 2005
2005
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VS
Bayliner Discovery 215 2009 boat specs
Bayliner
Bayliner Discovery 215 2009
2009
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Bayliner 305 Sb 2005 vs Bayliner Discovery 215 2009 — Same Brand, Different Boat

The Bayliner 305 Sb 2005 vs Bayliner Discovery 215 2009 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.

Both boats share a closely matched power ceiling — 250 hp for the Bayliner 305 Sb 2005 and 260 hp for the Bayliner Discovery 215 2009. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Bayliner 305 Sb 2005 carries 148 gallons versus 37 gallons in the Bayliner Discovery 215 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 Bayliner 305 Sb 2005 is rated for 9 passengers, while the Bayliner Discovery 215 2009 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bayliner 305 Sb 2005 could be the deciding factor.

Bottom line: Choose the Bayliner 305 Sb 2005 if your priority is putting more people on the water — it handles 9 passengers and at 31,0 ft it has the deck room to back that rating up comfortably. The Bayliner Discovery 215 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail31.00 ft
Length overall - Detail20 ft. 9 in. (6.32 m) Rigged: 22 ft. 5 in. (6.83 m)
Length - Feet31
Length - Feet20.75
Length overall - Meters9.45
Length overall - Meters6.83
Length overall - Inches372
Length overall - Inches269
Beamnot available
Beam8 ft. 1 in. (2.46 m)
Beam - Metersnot available
Beam - Meters2.46
Beam - Inchesnot available
Beam - Inches97
Bridge clearance - Detailnot available
Bridge clearance - DetailMax: 4 ft. 3 in. (1.30 m)
Bridge clearance - Metersnot available
Bridge clearance - Meters1.3
Bridge clearance - Inchesnot available
Bridge clearance - Inches51
Deadrisenot available
Deadrise18℃
Draft [drive up] - Detailnot available
Draft [drive up] - Detail1 ft. 6 in. (0.46 m)
Draft [drive up] metersnot available
Draft [drive up] meters0.46
Draft [drive up] inchesnot available
Draft [drive up] inches18
Draft [max] - Detailnot available
Draft [max] - Detail2 ft. 11 in. (0.89 m)
Draft [max] - Metersnot available
Draft [max] - Meters0.89
Draft [max] - Inchesnot available
Draft [max] - Inches35
Weight - Detailnot available
Weight - DetailWith Standard Engine: 2,785 lbs. (1,263 kg)
Weight - kgnot available
Weight - kg1263.25
Weight - lbs.not available
Weight - lbs.2785
Engine and Drivetrain
Fuel tank capacity - Gal148
Fuel tank capacity - Gal37
Fuel tank capacity - Liters560.24
Fuel tank capacity - Liters140.06
Engine makeMercury Mercruiser
Engine makeMercury
Horsepower250 hp
Horsepower220 hp
Fuel typeGas
Fuel typeGas
Engine modelnot available
Engine model5.0L MerCruiser® Alpha I
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail37 gal. (140 l)
Drive typenot available
Drive typeI/O
Engine maxnot available
Engine max260 hp
Operational Info
Water capacity35
Water capacitynot available
Holding tank capacity - Gal3
Holding tank capacity - Galnot available
Holding tank capacity - Liters113.56
Holding tank capacity - Litersnot available
Boat typePower
Boat typenot available
General Boat Info
Makenot available
MakeBayliner
Modelnot available
ModelDiscovery 215
Model Yearnot available
Model Year2009
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeModified Vee
Trailer Info
Trailer - Heightnot available
Trailer - HeightRigged: 7 ft. 3 in. (2.21 m)
Trailer - Length over allnot available
Trailer - Length over allRigged: 24 ft. 2 in. (7.37 m)
Trailer - Weightnot available
Trailer - WeightWith Standard Engine: 3,685 lbs. (1,672 kg)
Trailer - Widthnot available
Trailer - Width8 ft. 1 in. (2.46 m)

Bayliner 305 Sb 2005 vs Bayliner Discovery 215 2009 — Common Questions

Which is the larger boat — the Bayliner 305 Sb 2005 or the Bayliner Discovery 215 2009?
The Bayliner 305 Sb 2005 is the longer of the two at 31,0 feet overall. The Bayliner Discovery 215 2009 comes in at 20,8 feet, making it roughly 10,3 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which boat can handle a bigger outboard?
The Bayliner Discovery 215 2009 is rated to a maximum of 260 hp, giving it the larger power ceiling. The Bayliner 305 Sb 2005 tops out at 250 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 Bayliner 305 Sb 2005 is Coast Guard rated for 9 passengers, while the Bayliner Discovery 215 2009 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 has the larger fuel tank — the Bayliner 305 Sb 2005 or the Bayliner Discovery 215 2009?
The Bayliner 305 Sb 2005 has the bigger tank at 148 gallons, versus 37 gallons on the Bayliner Discovery 215 2009. That 111-gallon difference translates to roughly 333–555 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Bayliner 305 Sb 2005 and Bayliner Discovery 215 2009 from the same manufacturer?
Yes — both the Bayliner 305 Sb 2005 and the Bayliner Discovery 215 2009 are built by Bayliner. 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.