BoatsGemini 105MC

Gemini 105MC

Catamaran, twin centreboards · Masthead Sloop · 2003–2011

A versatile cruising catamaran featuring a cockpit that converts with canvas or solid panels for all-weather comfort

Designed by Tony Smith, built by Performance Cruising Inc.

LOA
Beam
Draft (max)
Displacement
Hull type
Catamaran Twin Cbrd.

See her sail

The Gemini 105MC, on the water

The fleet's own footage — the truest look at how she really moves.

Footage from Lady K Sailing

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

Shoal draftDraws 0.46 m, board up where she has one — creeks, sandbars and thin anchorages most keels have to stay out of.
LightHeavy

112 — light for her waterline, so she is easily driven and quick to accelerate.

Displacement / length 112
EasygoingPowered-up

27.7 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 27.7
  • Draws more than ~80% of boats her size on file
  • Narrower than ~93% of boats her size on file

Compared with 168 boats of the same type within a quarter of her length.

What the fleet has seen

The Gemini 105MC, as the fleet has seen it

Derived from the videos the fleet has analysed of this model. ▶ marks open the moment aboard.

The Gemini 105MC is a 10.2-meter cruising catamaran designed by Tony Smith and built by Performance Cruising Inc. from 2003 to 2011. It features a Masthead Sloop rig and a Catamaran Twin Cbrd. hull, with a 4.3-meter beam and a displacement of 3628 kg.3:11 The model is a development of the Gemini 105M, incorporating interior updates and a cockpit that can be temporarily enclosed.2:31 Its retractable centerboards allow the draft to vary from 1.5 to 5.5 feet, facilitating access to shallow anchorages.4:29 A rotating mast and a 150-percent genoa contribute to its performance, while a retractable amidship outboard engine enhances maneuverability.5:14 The interior includes a U-shaped dinette, a galley in the port hull, and a head with a shower in the starboard hull.3:41 Aboard Lady K Sailing, the Gemini 105MC was noted for its affordability, shallow draft, and trailerability, fitting into standard monohull marina slips.2:31

The living fleet

Sailed by the fleet

Where the fleet has filmed this boat.

Seen once across one channel of the fleet.

Basemap © Wikimedia Commons · CC BY-SA 4.0

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Rig & sail area
Rig
Masthead Sloop
Ratios
SA / displacement
27.7
Displacement / length
111.6
Hull
Hull type
Catamaran Twin Cbrd.
Construction
Fiberglass
Production
Years built
2003–2011
Designer
Tony Smith
Builder
Performance Cruising Inc

Boats like this, on the water

More boats like her, on the water

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

Dragonfly 3510.68 mSame hull family0.5 m longerA high-performance trimaran with a rotating fractional rig and a 34.54 SA/D ratio built for rapid, stable cruising
Dragonfly 35 - Delivering this fabulous Trimaran from Dartmouth to Troon0:14from Halcyon Yachts - International Yacht Delivery
Mahe 3611.03 mSame hull family0.8 m longer
Why is this Catamaran So CHEAP? - Ep 365 - Lady K Sailingfrom Lady K Sailing
Prout Event 3410.36 mSame hull familyNear-identical length
Do NOT Buy - Prout 34 Bluewater Catamaran - Ep 351 - Lady K Sailing2:25from Lady K Sailing
Athena 3811.60 mSame hull family1.4 m longer
Shipwrecked Catamaran FULL Tour (Dismasted & Nearly Sank!)0:01from Adventureman Dan
Fastcat 39512.01 mSame hull family1.8 m longerA high-performance fractional catamaran from Simonis-Voogd, featuring a high sail-area-to-displacement ratio for speed
Velho Jack and Angelita: madness and overcoming challenges2:20from Podcast Maré Sonora ®
Prout Ltd. Quest 3310.06 mSame hull family0.2 m shorterA twin-keeled cutter-rigged catamaran designed for shallow-draft cruising and bridging the gap between the 31 and 34
Log Books and Boats16:02from Sailing Gently

The family

Related models

The designs closest to hers — usually the rest of the builder's range, sometimes the same hull sold under another name.

Gemini 105MA Tony Smith-designed catamaran with twin centerboards, offering a high sail-area-to-displacement ratio for agile cruisingGemini 3400The first in the series to feature molded transom steps and a new kick-up rudder system for easier handlingGemini 3200An evolution of the 3000 series featuring an extended waterline for improved performance and a masthead rigGemini 31/3000The best-selling American cruising catamaran of its era, featuring a twin-centerboard hull designed for shoal-water accessGemini Legacy 35A high-performance fractional catamaran featuring a Warren Luhrs-designed cockpit and shallow 0.86m draft

Keep asking

The fleet has more to say

Search what's been said about the Gemini 105MC, or ask a specific question — the answer comes back written out, with links to the moments it draws on.

Search the fleet for boats like thisAsk the fleet about the Gemini 105MC

The newsletter

New boats, new stories, from everywhere.

One email from the fleet — boats newly added, videos newly analyzed. No noise.

Report an issue