1998 Island Packet 37 vs 1978 Westsail 42 — Comparison

1998 Island Packet 37
VS
1978 Westsail 42

Specifications Side by Side

Specification1998 Island Packet 371978 Westsail 42
General
ManufacturerIsland PacketWestsail
Year1998–20051978–1983
TypeCutterCutter
CountryUSAUSA
DesignerBob JohnsonWilliam Crealock
Dimensions
LOA11.28 m (37.0 ft)12.80 m (42.0 ft)
LWL9.45 m (31.0 ft)10.36 m (34.0 ft)
Beam3.66 m (12.0 ft)3.81 m (12.5 ft)
Draft1.37 m (4.5 ft)1.83 m (6.0 ft)
Weight
Displacement8,165 kg (18,001 lbs)13,154 kg (29,000 lbs)
Ballast3,266 kg (7,200 lbs)5,443 kg (12,000 lbs)
Sailing
Sail Area58.0 m² (624 ft²)72.0 m² (775 ft²)
Hull MaterialFiberglassFiberglass
Keel TypeFullFull
Engine & Tanks
Engine40 HP55 HP
Fuel Capacity170 L (44.9 gal)227 L (60.0 gal)
Water Capacity303 L (80.0 gal)454 L (119.9 gal)
Accommodation
Berths67
Cabins23

Performance Comparison

SA/D Ratio (Higher = more sail power per displacement)
1998 Island Packet 37
14.53
1978 Westsail 42
13.12
Ballast Ratio (Higher = more stability)
1998 Island Packet 37
40.00
1978 Westsail 42
41.38
Capsize Ratio (Lower = safer offshore)
1998 Island Packet 37
0.73
1978 Westsail 42
0.65
Comfort Ratio (Higher = gentler motion)
1998 Island Packet 37
22.28
1978 Westsail 42
27.65

Detailed Comparison

The 1998 Island Packet 37 and 1978 Westsail 42 represent two takes on cutter-rigged sailing. The 1998 Island Packet 37 is a 1990s design by Island Packet from USA, while the 1978 Westsail 42 is a 1970s offering from Westsail from USA. The 1998 Island Packet 37 was penned by Bob Johnson. The 1978 Westsail 42 was designed by William Crealock.

In terms of size, the 1998 Island Packet 37 measures 11.28m (37.0ft) overall with a beam of 3.66m, compared to the 1978 Westsail 42 at 12.80m (42.0ft) with a 3.81m beam. The 1978 Westsail 42 is 1.52m longer than the 1998 Island Packet 37. The 1978 Westsail 42 displaces approximately 61% more than its counterpart, which significantly affects how each boat handles in different sea states.

Looking at performance, the 1998 Island Packet 37 has modest sail power for its displacement with an SA/D ratio of 14.53 and 58.0 m² of sail area. The 1978 Westsail 42, with an SA/D of 13.12 and 72.0 m² of canvas, offers modest sail power for its displacement. The 1998 Island Packet 37 has the edge in terms of raw sailing performance.

For comfort and safety, the 1998 Island Packet 37 offers a moderate motion comfort level (comfort ratio: 22.3) and excellent capsize resistance suitable for offshore voyaging (capsize ratio: 0.73). The 1978 Westsail 42 has a comfort ratio of 27.7 and a capsize screening value of 0.65. The ballast ratios are 40.0% for the 1998 Island Packet 37 and 41.4% for the 1978 Westsail 42, reflecting their respective approaches to stability.

Below deck, the 1998 Island Packet 37 provides 6 berths in 2 cabins with 303L of water capacity and 170L of fuel. The 1978 Westsail 42 offers 7 berths in 3 cabins with 454L water and 227L fuel capacity.

Verdict

For cruising: The 1978 Westsail 42 is the better choice for comfortable cruising thanks to its higher comfort ratio, offering a gentler motion at sea that crews will appreciate on longer passages.

For racing: The 1998 Island Packet 37 has the performance advantage with its superior SA/D ratio, meaning more sail power relative to its displacement for competitive sailing.

For liveaboard: The 1978 Westsail 42 offers more sleeping accommodation, making it better suited for extended living aboard. Consider water and fuel capacity for extended stays away from marinas.

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Or view individual specs: 1998 Island Packet 37 · 1978 Westsail 42