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SYNTHESIS 66

41.8m · Built 1982 · Refit 2023

SYNTHESIS 66 yacht — 41.8m Feadship motor yacht
SYNTHESIS 66 yacht — Synthesis 66 Yacht 2
SYNTHESIS 66 yacht — Synthesis 66 Yacht 3
Provisional Score
RightYacht Score
52/100
Based on public data
41.8
Meters
10
Guests
5
Cabins
8
Crew
Charter Regions
Amalfi CoastCorsicaFranceFrench RivieraIbizaItalyMediterraneanMonacoSardiniaThe Balearics

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About SYNTHESIS 66

SYNTHESIS 66 is a 41.80-metre custom displacement motor yacht built by Feadship in 1982 with exterior design by De Voogt and interior design by Larvor, refitted as recently as 2023. Her steel hull and Feadship provenance place her within a lineage of Dutch craftsmanship that has remained a reference point for build quality over several decades. With a gross tonnage of 347, a cruise speed of 12 knots, and a range of 3,500 nautical miles, she is a composed long-range cruiser suited to the considered itinerary rather than rapid repositioning.

Available for yacht charter along the French Riviera, the Amalfi Coast, Corsica, Sardinia, Ibiza, Monaco, and the broader Western Mediterranean, SYNTHESIS 66 accommodates 10 guests in 5 cabins attended by a crew of 8. The 2023 refit is a material consideration: it signals active investment in a hull that now carries over four decades of Feadship engineering, bringing her systems and presentation to a current standard.

She carries a deck jacuzzi, sun deck, sunpads, outdoor shower, exterior bar, swimming platform, and Wi-Fi. Her water sports programme is well stocked for a vessel of this era and footprint: three Seabobs, Yamaha and MXR Jetsurfs, Yamaha FX waverunners, an inflatable trampoline, wakeboards, doughnuts, fishing equipment, and snorkelling gear for ten.

SYNTHESIS 66 will appeal to guests with an appreciation for heritage yachting — a Feadship with decades of ocean miles and a recent refit is a specific and legitimate proposition. She suits mature parties and families who value character, stability, and proper crew service over novelty. Those who require the latest interior design language, new-build systems warranties, or a high-volume amenity programme will find that a younger vessel better matches their expectations.

The provisional rating is based on available public data, reflecting acceptable standards across safety documentation, maintenance records, and operational protocols. As an independent authority, RightYacht provides owners and charterers with transparent, third-party evaluation — helping inform decisions beyond marketing materials alone.

Ocean Range
3,500 nm range - capable of ocean crossings

Key Specifications

Length Overall
41.8m
Beam
7.9m
Draft
2.5m
Gross Tonnage
347 GT
Max Guests
10
Cabins
5
Crew
8
Cruise Speed
12 kts
Max Speed
13 kts
Range
3,500 nm
Fuel Capacity
44,000 L
Water Capacity

Build & Design

Builder
Feadship
Build Year
1982 (Refit 2023)
Model
Custom
Exterior Designer
De Voogt
Interior Designer
Larvor
Hull Material
steel
Hull Configuration
full-displacement

Propulsion

Engines
2x
Manufacturer
Caterpillar

Amenities

Exterior Bar
Sun Deck
Outdoor Shower
Wi-Fi
Swimming platform
Sunpads
Deck Jacuzzi
Air Conditioning

Water Toys & Equipment

2 x Yamaha FX Waverunners
2 x MXR Jetsurfs
1 x FunAir Inflatable trampoline
3 x Seabobs
2 x Jobe Doughnuts
2 x O'Neil Wake Boards
2 x Fishing Equipment
10 x Snorkelling Equipment

Tenders

Tender

About This Score

This is a provisional score based on publicly available data only. Unlike verified yachts, this listing lacks:

  • Independent on-board inspection
  • Crew qualification verification
  • Maintenance record audit
  • Safety equipment inspection

The actual safety profile may differ significantly.

Provisional scores are calculated from eight factors: vessel age, refit recency, classification society, flag state, crew-to-guest ratio, builder reputation, vessel size, and charter region coverage. All provisional scores are capped at 75/100. Learn how scores work →

Scoring model v5 · Last scored Feb 2026

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