HEAVENLY TWINS
Masthead Sloop • Catamaran (no boards/asym.) • Built 1971
Dimensions
- LOA
- 27 ft
- LWL
- 21.5 ft
- Beam
- 13.75 ft
- Max Draft
- 2.25 ft
- Displacement
- 6,285 lbs
- Ballast
- — lbs
Performance Ratios
- Capsize Ratio ⓘ
- 2.98 (use caution offshore)
- SA/D Ratio ⓘ
- 17.9
- D/L Ratio ⓘ
- 282
- Ballast Ratio ⓘ
- —
Sail Plan
- Sail Area
- 380 sq ft
Construction
- Hull Type
- Catamaran (no boards/asym.)
- Rig Type
- Masthead Sloop
- Hull Material
- FG
- Ballast Type
- —
Production
- First Built
- 1971
- Last Built
- —
- Number Built
- —
Engine & Accommodations
- Engine Make
- Yanmar
- Engine Model
- 1GM10
- Power
- 2x 9 hp
- Engine Type
- Diesel
- Water
- 62 gal
- Fuel
- 24 gal
The heavenly twins has been produced since 1971 in the following variants (major changes/distinguishing features are indicated):
Mk1 (1971) - Original LOA: 26.17 ft / 7.98 m. Shorter keels and no central nacelle/pod aft of the cockpit, rounded saloon access door
Mk2 (1975) - As Mk1 but larger rig, square saloon access door
Mk2A - New Hull mould, incorporating longer keels (fwd) and full length central nacelle
Mk3 (1977) - Same hull as MK2A but with new Deck Moulding, incorporating larger aft cabin hatches, additional re-enforcement under mast/above saloon door
Mk4 (1981) - Solid foredeck, improvements inside.
HT27 (1989) - LOA 27 ft / 8.23 m. Hull/Deck join lifted 100mm, giving height for a "stoop-thru" passage in stbd hull, deck mould altered beneath mast to give standing headroom in saloon.
Other engine options: Perkins 20 hp diesel or Yamaha 9.9 AEL 4-stroke outboard.
Class Association
Source: https://htcca.co.uk/ht-reviews/