The Hirondelle Mk I, designed by Chris Simpson in the late 1960s, represents a foundational moment in the history of the "pocket" cruising catamaran. Measuring 23 feet in length, this British-designed multihull was among the first to successfully blend the high-speed potential of a racing catamaran with the basic accommodations required for coastal weekend cruising. Built primarily by Hirondelle Cats in Essex, UK, the Mk I established a legacy for safety and seaworthiness that was famously cemented when an early model completed a transatlantic crossing, a feat that helped dispel contemporary skepticism regarding the stability of small multihulls. While modern catamarans have moved toward high-volume "condo-maran" aesthetics, the Mk I remains a purist's choice, favored for its slender hulls and low-profile silhouette.
Hirondelle Mk I Sailboats for Sale & Market Overview

- Make
- Hirondelle
- Model
- Mk I
- Builder
- Brian Carvill & Assoc.
- Designer
- Chris Hammond
- Number Built
- Production Year(s)
- 1968 - ??
Below are the most recent Hirondelle Mk I sailboat listings (up to 10).
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| Source | Year | Make | Model | Price | Cabins | Heads | City | Country | Listing Date | |
|---|---|---|---|---|---|---|---|---|---|---|
DISCLAIMER: We are not affiliated with any external listing websites in any way. We simply aggregate publicly available listings to make it easier for buyers to find sailboats for sale. We cannot guarantee the accuracy of the listings, so please verify all information with the seller before making any decisions.