LEGO Technic Deep-Sea Research Submarine 42201 – Movable Propellers, Grabbing Arm

Explore a World of Deep-Sea Engineering

Ignite curiosity with the LEGO Technic Deep-Sea Research Submarine. This 413-piece building set mirrors features found on real underwater vessels, including a cockpit with accessible controls, three rotating propellers, and a retractable grabbing arm that reaches for targets like barrels during underwater missions.

Designed for hands-on learning and imaginative play

The model invites kids aged 9 and up to experiment with steering and propulsion, discover how an extendable arm works, and role-play science-adventure scenarios. The transparent cockpit opens to reveal the seat and the control panel, giving builders a tangible sense of operation and involvement.

• Three spinning propellers create a sense of underwater motion and mechanical interaction.
• Three air tanks and a controlled cockpit setup encourage narrative play about exploration and technology.
• The extendable grabbing arm lets kids simulate retrieval tasks in their sea-bed stories.

Build, learn, and capture progress

The LEGO Builder app enhances the experience with 3D viewing, zoom, and rotation, helping builders examine every connection as they assemble. You can save models and track progress as you move from step to step, transforming frustration into confidence.

• Zoom and rotate the model in 3D to study mechanics from every angle.
• Save your progress and revisit builds at any time during the project.
• Explore a broader range of Technic sets that demonstrate realistic movement and engineering ideas.

A thoughtful gift for young engineers

With 413 pieces and a play-value that blends construction with ocean exploration, this set is a versatile gift idea for fans of submarines and engineering toys. It measures over 6 inches (15 cm) high when built, making a tangible desktop display or shelf-worthy model.