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Boat intake โ€” community-contributed specifications with sources

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Voyage Yachts 480

catamaran ยท built 2015โ€“2018 ยท approved by moderator

Performance & stability indicators

Calculated from the specifications below. Comparative aids only โ€” not a stability assessment.

SA/D โ€” Sail area / displacement

Power-to-weight ratio of the rig โ€” the classic comparison ratio. Imperial: SA ftยฒ รท (displacement lb รท 64)^โ…”. Higher = more powerful for its weight.

26.59 (11.96 mยฒ per tonne)
BN โ€” Bruce number

Power-to-weight indicator of speed potential (โˆšSA ftยฒ รท displacement lb^โ…“). Below ~1.3 is slow in light airs; ~1.6 reefs early offshore.

1.29 (26.15 metric scale)
BSpd โ€” Base speed

Distance a boat could average over 24 hours, empirically derived (Richard Boehmer, 1989). Also used to handicap mixed-fleet races.

11.28 kn (20.9 km/h)
KSP โ€” Kelsall speed prediction

Derek Kelsall's performance index (PI-C ร— 10), expressed in knots โ€” an estimate of speed potential on a reach. A value of 8 โ‰ˆ 8 knots in a 10-knot wind.

8.06 kn (14.9 km/h)
Texel โ€” Texel rating (Multihull Dynamics)

Multihull Dynamics simplified Texel approximation - matches the numbers they published. LOWER = faster.

112.4 (lower = faster)
Texel* โ€” Texel rating (official / global)

The authoritative CTC / Watersportverbond Texel formula - the same core used by OMR (Australia) and Multi 2000 (France). Includes crew weight, so it sits on a higher numerical scale than the MD approximation (identical ordering). LOWER = faster.

146.9 (lower = faster)
SSpd โ€” Stability speed

Wind speed (knots) at which the windward hull of a catamaran (or main hull of a trimaran) begins to lift โ€” Shuttleworth, incl. a 40% gust factor. Higher = more stable.

20.75 kn (38.4 km/h)
KSI โ€” Kelsall stability indicator

Indicator of resistance to sideways capsize (Derek Kelsall). Higher = more resistant.

34.9 (38.4 km/h wind equiv.)

Specifications

Identity
ManufacturerVoyage Yachts
Model480
Variantโ€”
Year from2015
Year to2018
Hull typecatamaran
Boat styleโ€”
Constructionโ€”
Dimensions
LOA (m)15.1 (49.54 ft)
Waterline length (m)13.56 (44.49 ft)
Beam overall (m)7.65 (25.10 ft)
Beam waterline (m)โ€”
Hull width (m)โ€”
Beam centreline (m)โ€”
Bridge deck clearance (m)โ€”
Draft min (m)1.1 (3.61 ft)
Draft max (m)1.1 (3.61 ft)
Board typeFixed keel (no board)
Weights & sail
Displacement light (kg)10450 (23038.28 lb)
Displacement loaded (kg)โ€”
Sail area upwind (mยฒ)125 (1345.49 ftยฒ)
Sail area downwind (mยฒ)โ€”
Systems & interior
Total engine power (kW)67.11 (90.0 hp)
Number of engines2
Fuel (L)400 (105.67 US gal)
Water (L)400 (105.67 US gal)
Berthsโ€”
Headroom (m)โ€”
Notes & source
Notesโ€”
Sourcessailboatdata.com via Wayback (high) - https://web.archive.org/web/20231208035128/https://sailboatdata.com/sailboat/voyage-480
approved_bymoderator
approved_at2026-10-30 20:20:24

Official Texel* — propeller adjustment

Texel* above uses a propeller factor of 1 (retractable / unknown). Propellers are commonly swapped between otherwise identical boats, so pick a configuration here to compare like-for-like. Board type recorded: Fixed keel (no board) (already reflected in Texel*).

Texel* with propellers: โ€”

โ† All published models

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