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42105 Catamaran is a TECHNIC set that was released on January 2, 2020.

Background

A catamaran is a multi-hulled watercraft featuring two parallel hulls of equal size. It is a geometry-stabilized craft, deriving its stability from its wide beam, rather than from a ballasted keel as with a monohull boat. Catamarans typically have less hull volume, smaller displacement, and shallower draft (draught) than monohulls of comparable length. The two hulls combined also often have a smaller hydrodynamic resistance than comparable monohulls, requiring less propulsive power from either sails or motors. The catamaran's wider stance on the water can reduce both heeling and wave-induced motion, as compared with a monohull, and can give reduced wakes.

Catamarans were invented by the Austronesian peoples which enabled their expansion to the islands of the Indian and Pacific Oceans.

Catamarans range in size from small (sailing or rowing vessels) to large (naval ships and roll-on/roll-off car ferries). The structure connecting a catamaran's two hulls ranges from a simple frame strung with webbing to support the crew to a bridging superstructure incorporating extensive cabin and/or cargo space.

LEGO.com Description

LEGO.com-icon-yellow.png This is a description taken from LEGO.com. Do not modify it. (visit this item's product page)

Kids can recreate the thrill of boat racing with this super-cool LEGO® Technic™ (42105) Catamaran toy. For the first time ever, this LEGO Technic model toy floats on water! So, sailing enthusiasts can learn while they play. See how the sails work. Or how the dagger boards maximise stability and how the rudder steers. With the classic 2-hull catamaran design, this model boat is a fantastic recreation of the real thing. Learn how to build and sail an awesome toy boat Build… rebuild… play… display... There’s so much for kids to discover with this LEGO engineering toy. Have fun building the Catamaran – inspired by real race boats. Then set it in the bathtub to recreate speed sailing adventures before rebuilding into a Race Power Boat. If you're looking for toy boats that really float, this set is a great choice. Unique toys and immersive building experiences LEGO Technic sets are ideal for LEGO fans looking for a new challenge. They offer an advanced building experience for kids and adults who enjoy learning new engineering skills – or simply love to build.



  • Take to the water with this racing Catamaran floating toy sailboat. Packed with realistic features, it includes 2 sails, 2 dagger boards and rudder.


  • Ideal for developing engineering skills, this 2-in-1 model sailboat kit lets kids build, play and rebuild, giving an introduction to how boats really work.


  • Master the tactics of a world-class speed-sailor. Angle the sails for the ultimate racing position. Raise and lower the 2 dagger boards to maximize stability. Then use the rudder to steer.


  • Looking for the best gifts for a toy boat fan? This LEGO® Technic™ Catamaran (42105) is a great choice. Designed for ages 8+, it’s ideal for LEGO fans looking for a new challenge, or for anyone with a passion for sailing.


  • At over 12” (32cm) long, 8” (22cm) wide and 17” (44cm) high (from the bottom of the rudder to the top of the mast), this model sailboat is made for easy handling in the bathtub.


  • Who needs batteries when you've got sails? Certainly not this LEGO® Catamaran! It's powered by imagination, so no batteries are required.


  • Get building straightaway with full instructions for the Catamaran in the box. Ready to build the Race Power Boat? You’ll find extra instructions for this online.


  • Young LEGO® fans can discover a whole new world of building fun with LEGO Technic™ plastic model kits. With cool vehicle designs and realistic functions, the action goes on long after the model is built.


  • LEGO® building bricks are designed to the highest industry standards. LEGOTechnic™ building kits are consistent, compatible and connect easily every time.


  • LEGO® Technic™ pieces go through robust testing to make sure every building set meets the highest global safety and quality standards.


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