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Masthead Sloop · Catamaran (no boards/asym.) · First built 1978
A Macalpine-Downie designed catamaran with a high sail-area-to-displacement ratio for spirited performance
Designed by J. R. Macalpine-Downie & Rod Macalpine-Downie.
Is it for you?
Where this design lands on the numbers a shopper trusts — read straight from her own ratios.
Light and lively — happiest day-sailing and coastal-hopping in settled weather.
The record
The complete reference set — tap any figure to switch between metric and imperial.
Boats like this, on the water
Comparable boats the fleet has actually sailed on camera: same type, within a quarter of her length. Open the boat, or watch the video.
Could I Actually Live Here? (Thailand Test Week 🇹🇭)
Drogue versus parachute anchor on 32' catamaran in gale conditions Pacific crossing -OLD VERSIONThe family
Nearby designs by size, type, and era — worth a look alongside her.
The newsletter
One email from the fleet — boats newly added, videos newly analysed. No noise.

Indonesia, Whale Sharks… and Our New Boat? Eps 69
Why did I buy this boat?
Stuck in Cramped Boat Space for HOURS (YOU WARNED ME)