Corsair 31/F-31 Buyer's Guide
Shopping a Corsair 31 on the brokerage market means looking at a folding trimaran designed by Ian Farrier and built by Corsair Marine, a boat that blends cruising accommodations with remarkable turn of speed and a trailering lifestyle. Ex-charter examples are common, and both charter four-cabin layouts and other versions appear, so a buyer should know which layout and upgrade set matches the intended use before scheduling a viewing.
Layouts on the Used Market
Charter four-cabin layouts are the more common on the used market, but both are available; ex-charter examples are common. Forward in the central hull you will find a V-berth and settee berths with 6 foot 2 inches of headroom, the narrow hull flaring above the waterline for volume. Some boats have an aft cabin with a wide double berth reached through a hatch behind the cockpit, and enclosed heads appear on several models. Amas provide outboard stowage for anchors, rodes, and gear, which is a real advantage for liveaboard or charter-derived hulls.
Equipment and Common Upgrades
Autopilot, chartplotter, code zero, spinnaker, and asymmetric spinnaker are commonly fitted and speak to the boat's dual cruising-racing character. For power and energy, solar and lithium batteries appear as owner upgrades rather than standard, worth checking on a boat intended for off-grid use. Sail-handling upgrades include furling main and electric winches as less common additions, and a gennaker shows up occasionally. Navigation and comfort clusters run to a life raft, bimini, dodger, and cockpit shower as sometimes-seen owner additions; a completed transatlantic is a noted owner upgrade rather than a factory claim.
What to Inspect
On a specific hull, check the rudder trailing edges purchased from Foss Foam, which have required fairing because they were too wide anchor. Several owners have experienced bearing failures, so exercise the folding system and rotate the bearings for roughness. Watch for water spouts in the cockpit at speed and ask the seller about ama water entry through hatches or fittings after heavy-air sailing beyond 15 knots, which some owners report. Inspect the daggerboard trunk for fore-and-aft play at speed, a problem of too much play in the trunk that at least one owner has experienced. Verify the deck around jib winches for movement under load and confirm the backing plates are sound. Look at mast-aft wiring exposed along the overhead and running-light wiring lacking drip loops where it runs under the galley, and confirm the water tanks are the Ronco roto-molded units Corsair adopted after leaks.
Availability and Buyer's Takeaway
These trimarans turn up in the United States, Italy, Aruba, Thailand, and the United Kingdom. Before committing, run through a short checklist:
- Confirm the folding aka beams pivot without binding.
- Check the rudder trailing edge for fairing work.
- Test bearings for roughness or play.
- Inspect amas for water ingress at hatches and fittings.
- Verify daggerboard trunk clearance at speed.
- Press the deck around jib winches for movement.
- Trace mast-aft and running-light wiring for drip loops.
- Identify the water tank maker and any leak history.
Price & volume trends
Monthly asking-price and listing-volume trends for the Corsair 31/F-31. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 9 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Mar 25 | 2 | $102,250 | — |
| Apr 25 | 2 | $69,750 | -31.8% |
| May 25 | 2 | $78,998 | +13.3% |
| Aug 25 | 2 | $62,450 | -20.9% |
| Sep 25 | 5 | $107,135 | +71.6% |
| Oct 25 | 3 | $103,850 | -3.1% |
| Jan 26 | 1 | $94,900 | -8.6% |
| Mar 26 | 1 | $27,000 | -71.5% |
| May 26 | 1 | $99,000 | +266.7% |
Where they're listed
Corsair 31/F-31 listings appear across 5 countries. United States has the most listings with 5 (45.5%), followed by Italy and Aruba.
Country view
11 listings · 5 countries| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| United States | $94,900 | 5 | 0 | 45.5% |
| Italy | $110,628 | 3 | 0 | 27.3% |
| Aruba | $85,000 | 1 | 0 | 9.1% |
| United Kingdom | $61,078 | 1 | 0 | 9.1% |
| Thailand | $99,000 | 1 | 0 | 9.1% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
3 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| Trimaran 27 | 27' | $ 35,250 | 32 | 9 |
| Dragonfly 35 | 35.04' | $ 295,000 | 18 | 1 |
| Corsair 31/F-31You are here | — | $ 99,000 | 11 | 0 |