Beneteau Idylle 15.50 1985 boat specs
Beneteau
Beneteau Idylle 15.50 1985
1985
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VS
Beneteau Oceanis 440 1994 boat specs
Beneteau
Beneteau Oceanis 440 1994
1994
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Beneteau Idylle 15.50 1985 vs Beneteau Oceanis 440 1994 — Same Brand, Different Boat

The Beneteau Idylle 15.50 1985 vs Beneteau Oceanis 440 1994 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 Beneteau Idylle 15.50 1985 measures 51,5 feet overall (1985), giving it roughly 6,7 additional feet of deck space compared to the Beneteau Oceanis 440 1994 at 44,8 feet (1994). Weight tells a clearer story for trailering families: the Beneteau Idylle 15.50 1985 tips the scales at 33 069 lbs — 12 569 lbs more than the Beneteau Oceanis 440 1994 at 20 500 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 Beneteau Idylle 15.50 1985 carries a rated maximum of 85 hp. Engine data for the Beneteau Oceanis 440 1994 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Beneteau Idylle 15.50 1985 carries 132 gallons versus 52 gallons in the Beneteau Oceanis 440 1994. 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 Beneteau Idylle 15.50 1985 is rated for 15 passengers, while the Beneteau Oceanis 440 1994 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau Idylle 15.50 1985 could be the deciding factor.

Displacement is where these two sailboats genuinely part ways. The Beneteau Idylle 15.50 1985 displaces 33 069 lbs — a 12 569-lb difference over the Beneteau Oceanis 440 1994 at 20 500 lbs. That gap separates two entirely different categories of sailing: the heavier boat is built for offshore passage-making and load-carrying, while the lighter hull rewards performance sailing and easier handling in lighter air.

Both boats draw a similar depth — 6,0 ft and 5,8 ft respectively. Marina access and anchorage options should be broadly equivalent between the two.

The Beneteau Idylle 15.50 1985 uses Masthead-sloop rigging. The Beneteau Idylle 15.50 1985 has a documented auxiliary engine of 85 hp.

For extended cruising, water capacity matters: the Beneteau Idylle 15.50 1985 carries 238 gallons versus 12 gallons on the Beneteau Oceanis 440 1994 — a significant advantage on longer passages where watermaker or provisioning stops aren't guaranteed.

Bottom line: The Beneteau Idylle 15.50 1985 is the offshore and bluewater choice — at 33 069 lbs displacement and 52 ft it has the load capacity, range, and seakeeping for extended passages. The Beneteau Oceanis 440 1994 at 20 500 lbs is the more nimble, accessible option — easier to single-hand and better suited to coastal and inland sailing.
Measurements / Dimensions
Length overall - Detail51.50 ft
Length overall - Detail44.83 ft
Length - Feet51.5
Length - Feet44.83
Length overall - Meters15.7
Length overall - Meters13.66
Length overall - Inches618
Length overall - Inches538
Beam14.80 ft
Beam14.00 ft
Beam - Meters4.51
Beam - Meters4.27
Beam - Inches178
Beam - Inches168
Draft [max] - Detail6.00 ft
Draft [max] - Detail5.75 ft
Draft [max] - Meters1.83
Draft [max] - Meters1.75
Draft [max] - Inches72
Draft [max] - Inches69
Displacement33069.00 lbs
Displacement20500.00 lbs
Body / Hull
Rudder1 spade rudder
Ruddernot available
Helm1 wheel
Helmnot available
Engine and Drivetrain
Fuel tank capacity - Gal132.1
Fuel tank capacity - Gal52
Fuel tank capacity - Liters500.05
Fuel tank capacity - Liters196.84
Horsepower85 hp
Horsepowernot available
Fuel typeDiesel
Fuel typeDiesel
Drive typeinboard
Drive typenot available
Engine makenot available
Engine makeYanmar
Performance
Maximum speed8.25
Maximum speednot available
Maximum speed measureknots
Maximum speed measurenot available
Operational Info
Sleeping capacity6
Sleeping capacity6
Cabins3
Cabins3
Head3
Head2
Water capacity237.8
Water capacity12
RiggingMasthead-sloop
RiggingMasthead-sloop
Mast ConfigurationKeel stepped mast
Mast Configurationnot available
Boat typeSail
Boat typeSail

Beneteau Idylle 15.50 1985 vs Beneteau Oceanis 440 1994 — Common Questions

Which is the larger boat — the Beneteau Idylle 15.50 1985 or the Beneteau Oceanis 440 1994?
The Beneteau Idylle 15.50 1985 is the longer of the two at 51,5 feet overall. The Beneteau Oceanis 440 1994 comes in at 44,8 feet, making it roughly 6,7 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Beneteau Idylle 15.50 1985 or the Beneteau Oceanis 440 1994?
For trailering, the Beneteau Oceanis 440 1994 has the edge at 20 500 lbs dry weight versus 33 069 lbs for the Beneteau Idylle 15.50 1985. 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.
What is the maximum horsepower rating for these boats?
The Beneteau Idylle 15.50 1985 has a documented max rating of 85 hp. Engine specifications for the Beneteau Oceanis 440 1994 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Beneteau Idylle 15.50 1985 is Coast Guard rated for 15 passengers, while the Beneteau Oceanis 440 1994 is certified for 13. 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 deeper draft — the Beneteau Idylle 15.50 1985 or the Beneteau Oceanis 440 1994?
The Beneteau Idylle 15.50 1985 has the deeper draft at 6,0 ft, versus 5,8 ft for the Beneteau Oceanis 440 1994. A deeper draft generally means better upwind performance and stability, but limits access to shallow anchorages and some marina berths. Always check the controlling depth of your home port and favourite cruising grounds before committing.
Is the Beneteau Idylle 15.50 1985 or the Beneteau Oceanis 440 1994 better suited for offshore sailing?
For offshore work, displacement and construction are the primary indicators. The Beneteau Idylle 15.50 1985 at 33 069 lbs displacement is the heavier, more load-carrying design — generally better suited to extended passages where seakeeping and provisioning capacity matter most. The Beneteau Oceanis 440 1994 at 20 500 lbs will typically be livelier and more responsive in lighter conditions.
Which boat is better equipped for long-distance cruising?
For extended passages, fresh water capacity is a key indicator of cruising readiness. The Beneteau Idylle 15.50 1985 carries 238 gallons of fresh water compared to 12 gallons on the Beneteau Oceanis 440 1994 — a meaningful advantage when watermaker installations or port stops aren't guaranteed.
Which boat is wider, and does it affect trailering?
The Beneteau Idylle 15.50 1985 measures 178" wide, compared to 168" for the Beneteau Oceanis 440 1994. 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.
Which boat has the larger fuel tank — the Beneteau Idylle 15.50 1985 or the Beneteau Oceanis 440 1994?
The Beneteau Idylle 15.50 1985 has the bigger tank at 132 gallons, versus 52 gallons on the Beneteau Oceanis 440 1994. That 80-gallon difference translates to roughly 240–400 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Beneteau Idylle 15.50 1985 and Beneteau Oceanis 440 1994 from the same manufacturer?
Yes — both the Beneteau Idylle 15.50 1985 and the Beneteau Oceanis 440 1994 are built by Beneteau. 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.