Bertram 31 Flybridge Cruiser 1974 vs Bertram 41 Convertible 2011 - Boat Spec Comparison

Q: Which is the larger boat — the Bertram 31 Flybridge Cruiser 1974 or the Bertram 41 Convertible 2011?

The Bertram 41 Convertible 2011 is the longer of the two at 41,0 feet overall. The Bertram 31 Flybridge Cruiser 1974 comes in at 31,0 feet, making it roughly 10,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: Which boat can handle a bigger outboard?

The Bertram 41 Convertible 2011 is rated to a maximum of 600 hp, giving it the larger power ceiling. The Bertram 31 Flybridge Cruiser 1974 tops out at 140 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 Bertram 31 Flybridge Cruiser 1974 is Coast Guard rated for 9 passengers, while the Bertram 41 Convertible 2011 is certified for 12. 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 has the larger fuel tank — the Bertram 31 Flybridge Cruiser 1974 or the Bertram 41 Convertible 2011?

The Bertram 31 Flybridge Cruiser 1974 has the bigger tank at 225 gallons, versus 54 gallons on the Bertram 41 Convertible 2011. That 171-gallon difference translates to roughly 513–855 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Bertram 31 Flybridge Cruiser 1974 and Bertram 41 Convertible 2011 from the same manufacturer?

Yes — both the Bertram 31 Flybridge Cruiser 1974 and the Bertram 41 Convertible 2011 are built by Bertram. 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

Bertram 31 Flybridge Cruiser 1974 vs Bertram 41 Convertible 2011

Bertram

Bertram 31 Flybridge Cruiser 1974

1974

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Bertram

Bertram 41 Convertible 2011

2011

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Detailed Evaluation & Buyer Recommendation

Bertram 31 Flybridge Cruiser 1974 vs Bertram 41 Convertible 2011 — Same Brand, Different Boat

The Bertram 31 Flybridge Cruiser 1974 vs Bertram 41 Convertible 2011 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.

The power gap is worth calling out. Rated to 600 hp, the Bertram 41 Convertible 2011 has a 460-hp advantage over the Bertram 31 Flybridge Cruiser 1974's 140-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Bertram 31 Flybridge Cruiser 1974 carries 225 gallons versus 54 gallons in the Bertram 41 Convertible 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 Bertram 41 Convertible 2011 is rated for 12 passengers, while the Bertram 31 Flybridge Cruiser 1974 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bertram 41 Convertible 2011 could be the deciding factor.

Bottom line: Choose the Bertram 41 Convertible 2011 if your priority is putting more people on the water — it handles 12 passengers and at 41,0 ft it has the deck room to back that rating up comfortably. The Bertram 31 Flybridge Cruiser 1974 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 9 that costs less to run day-to-day.

Measurements / Dimensions

Length overall - Detail31.00 ft

Length overall - Detail41.00 ft

Length - Feet31

Length - Feet41

Length overall - Meters9.45

Length overall - Meters12.5

Length overall - Inches372

Length overall - Inches492

Draft [max] - Detail3.08 ft

Draft [max] - Detail4.00 ft

Draft [max] - Meters0.94

Draft [max] - Meters1.22

Draft [max] - Inches37

Draft [max] - Inches48

Displacement10600.00 lbs

Displacementnot available

Beamnot available

Beam14.50 ft

Beam - Metersnot available

Beam - Meters4.42

Beam - Inchesnot available

Beam - Inches174

Engine and Drivetrain

Fuel tank capacity - Gal225

Fuel tank capacity - Gal54

Fuel tank capacity - Liters851.72

Fuel tank capacity - Liters2044.12

Engine makeDetroit

Engine makeCummins

Horsepower140 hp

Horsepower600 hp

Fuel typeDiesel

Fuel typenot available

Drive typeinboard

Engine 2 Engine Makenot available

Engine 2 Engine MakeCummins

Engine 2 Horsepowernot available

Engine 2 Horsepower600 hp

Engine 2 Drive Typenot available

Engine 2 Drive Typeinboard

Operational Info

Sleeping capacity2

Sleeping capacitynot available

Cabins1

Cabinsnot available

Head1

Headnot available

Water capacity18

Water capacity12

Holding tank capacity - Gal1

Holding tank capacity - Galnot available

Holding tank capacity - Liters3.79

Holding tank capacity - Litersnot available

Boat typePower

Performance

Cruising speednot available

Cruising speed25

Cruising speed measurenot available

Cruising speed measureknots

Maximum speednot available

Maximum speed28

Maximum speed measurenot available

Maximum speed measureknots

Bertram 31 Flybridge Cruiser 1974 vs Bertram 41 Convertible 2011 — Common Questions

Which is the larger boat — the Bertram 31 Flybridge Cruiser 1974 or the Bertram 41 Convertible 2011?

The Bertram 41 Convertible 2011 is the longer of the two at 41,0 feet overall. The Bertram 31 Flybridge Cruiser 1974 comes in at 31,0 feet, making it roughly 10,0 ft shorter — a meaningful difference in deck room and overall on-water presence.

Which boat can handle a bigger outboard?

The Bertram 41 Convertible 2011 is rated to a maximum of 600 hp, giving it the larger power ceiling. The Bertram 31 Flybridge Cruiser 1974 tops out at 140 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 Bertram 31 Flybridge Cruiser 1974 is Coast Guard rated for 9 passengers, while the Bertram 41 Convertible 2011 is certified for 12. 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 Bertram 31 Flybridge Cruiser 1974 or the Bertram 41 Convertible 2011?

The Bertram 31 Flybridge Cruiser 1974 has the bigger tank at 225 gallons, versus 54 gallons on the Bertram 41 Convertible 2011. That 171-gallon difference translates to roughly 513–855 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Are the Bertram 31 Flybridge Cruiser 1974 and Bertram 41 Convertible 2011 from the same manufacturer?

Yes — both the Bertram 31 Flybridge Cruiser 1974 and the Bertram 41 Convertible 2011 are built by Bertram. 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.

← Bertram 31 Flybridge Cruiser 1974 full specs ← Bertram 41 Convertible 2011 full specs