Alpa 7.4
Sailboat
24′ 4″
Since 1974
Overview
- Builder
- Alpa
- Model
- 7.4
- Type
- Sailboat
- Built
- 1974–1981
- Designer
- Sparkman & Stephens
- Hull
- Fin with rudder on skeg
- Hull material
- Fiberglass
- Rig
- Masthead Sloop
Dimensions
- Length overall
- 24′ 4″ (7.41 m)
- Waterline length
- 20′ 5″ (6.22 m)
- Beam
- 8′ 6″ (2.59 m)
- Displacement
- 4,189 lb (1,900 kg)
Sails and rig
- Sail area
- 291 sq ft (27.0 m²)
- I (foretriangle height)
- 32′ 3″ (9.84 m)
- J (foretriangle base)
- 10′ 2″ (3.10 m)
- P (mainsail luff)
- 25′ 7″ (7.79 m)
- E (mainsail foot)
- 9′ 2″ (2.80 m)
Design ratios
- Sail area / displacement
- 17.9
- Displacement / length
- 220
- Capsize screening
- 2.11
Power from the sails for the boat's weight. Under 16 is modest, 16–20 a typical cruiser, over 20 lively.
How heavy the boat is for its waterline. Under 200 is light, 200–300 moderate, over 300 heavy.
Under 2 is generally considered better for offshore use.
More details
- Construction
- FG
Data from Mauri Pro Sailboat Data. Check details with the builder before relying on them.