Sealine Ambassador 285 1987 vs Sealine S29 2005 - Boat Spec Comparison

Q: Which is the larger boat — the Sealine Ambassador 285 1987 or the Sealine S29 2005?

The Sealine S29 2005 is the longer of the two at 30,0 feet overall. The Sealine Ambassador 285 1987 comes in at 28,5 feet, making it roughly 1,5 ft shorter — a meaningful difference in deck room and overall on-water presence.

Q: Which boat can handle a bigger outboard?

The Sealine Ambassador 285 1987 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Sealine S29 2005 tops out at 160 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 Sealine Ambassador 285 1987 is Coast Guard rated for 8 passengers, while the Sealine S29 2005 is certified for 9. 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 Sealine S29 2005 measures 126" wide, compared to 122" for the Sealine Ambassador 285 1987. 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: How do the fuel tanks compare on the Sealine Ambassador 285 1987 and Sealine S29 2005?

Both boats carry similar fuel loads — 128 gallons and 126 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Q: Are the Sealine Ambassador 285 1987 and Sealine S29 2005 from the same manufacturer?

Yes — both the Sealine Ambassador 285 1987 and the Sealine S29 2005 are built by Sealine. 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

Sealine Ambassador 285 1987 vs Sealine S29 2005

Sealine

Sealine Ambassador 285 1987

1987

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Sealine

Sealine S29 2005

2005

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Detailed Evaluation & Buyer Recommendation

Sealine Ambassador 285 1987 vs Sealine S29 2005 — Same Brand, Different Boat

The Sealine Ambassador 285 1987 vs Sealine S29 2005 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 200 hp, the Sealine Ambassador 285 1987 has a 40-hp advantage over the Sealine S29 2005's 160-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 128 gal and 126 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Sealine S29 2005 is rated for 9 passengers, while the Sealine Ambassador 285 1987 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sealine S29 2005 could be the deciding factor.

Bottom line: Choose the Sealine S29 2005 if your priority is putting more people on the water — it handles 9 passengers and at 30,0 ft it has the deck room to back that rating up comfortably. The Sealine Ambassador 285 1987 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.

Measurements / Dimensions

Length overall - Detail28.50 ft

Length overall - Detail30.00 ft

Length - Feet28.5

Length - Feet30

Length overall - Meters8.69

Length overall - Meters9.14

Length overall - Inches342

Length overall - Inches360

Beam10.20 ft

Beam10.50 ft

Beam - Meters3.11

Beam - Meters3.2

Beam - Inches122

Beam - Inches126

Draft [max] - Detail2.80 ft

Draft [max] - Detailnot available

Draft [max] - Meters0.85

Draft [max] - Metersnot available

Draft [max] - Inches34

Draft [max] - Inchesnot available

Displacement8377.00 lbs

Displacementnot available

Engine and Drivetrain

Fuel tank capacity - Gal128

Fuel tank capacity - Gal126.2

Fuel tank capacity - Liters484.53

Fuel tank capacity - Liters477.72

Engine makeVolvo penta

Engine makeVolvo Penta

Engine modelKAD32P

Engine modelD3

Horsepower200 hp

Horsepower160 hp

Fuel typeDiesel

Drive typeinboard

Engine 2 Engine Makenot available

Engine 2 Engine MakeVolvo Penta

Engine 2 Engine Modelnot available

Engine 2 Engine ModelD3

Engine 2 Horsepowernot available

Engine 2 Horsepower160 hp

Engine 2 Fuel Typenot available

Engine 2 Fuel TypeDiesel

Engine 2 Drive Typenot available

Engine 2 Drive Typeinboard

Operational Info

Sleeping capacity3

Sleeping capacity2

Cabins2

Head1

Boat typePower

Water capacitynot available

Water capacity50.2

Sealine Ambassador 285 1987 vs Sealine S29 2005 — Common Questions

Which is the larger boat — the Sealine Ambassador 285 1987 or the Sealine S29 2005?

The Sealine S29 2005 is the longer of the two at 30,0 feet overall. The Sealine Ambassador 285 1987 comes in at 28,5 feet, making it roughly 1,5 ft shorter — a meaningful difference in deck room and overall on-water presence.

Which boat can handle a bigger outboard?

The Sealine Ambassador 285 1987 is rated to a maximum of 200 hp, giving it the larger power ceiling. The Sealine S29 2005 tops out at 160 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 Sealine Ambassador 285 1987 is Coast Guard rated for 8 passengers, while the Sealine S29 2005 is certified for 9. 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 Sealine S29 2005 measures 126" wide, compared to 122" for the Sealine Ambassador 285 1987. 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.

How do the fuel tanks compare on the Sealine Ambassador 285 1987 and Sealine S29 2005?

Both boats carry similar fuel loads — 128 gallons and 126 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.

Are the Sealine Ambassador 285 1987 and Sealine S29 2005 from the same manufacturer?

Yes — both the Sealine Ambassador 285 1987 and the Sealine S29 2005 are built by Sealine. 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.

← Sealine Ambassador 285 1987 full specs ← Sealine S29 2005 full specs