Mould King Coaxial Helicopter – 274-Piece STEM Building Set for Ages 8+
The Mould King Coaxial Helicopter is a 274-piece construction kit made from durable plastic, designed for children aged 8 and up. It belongs to the flight model category and offers a hands-on introduction to mechanical principles and rotor dynamics.
274 precision-fit pieces build into a fully functional coaxial helicopter model
Dual-rotor coaxial design provides stable, tethered flight without a tail rotor
Plastic construction keeps the model lightweight at 318 g while ensuring long-lasting durability
Age-appropriate for builders 8 years and up — no small parts that pose a choking hazard for younger children
What makes the Mould King Coaxial Helicopter stand out
The coaxial rotor system eliminates the need for a tail rotor, making this model inherently stable during flight. The 274-piece set challenges builders to follow step-by-step assembly instructions while learning how gear-driven rotors generate lift.
Ideal for...
Young builders and STEM enthusiasts aged 8 and up who enjoy mechanical models and flight experiments. Suitable for solo building sessions or guided classroom activities focused on basic physics and engineering concepts.
Application of the Mould King Coaxial Helicopter
Sort all 274 parts by type before starting assembly
Follow the included step-by-step instructions to build the fuselage and rotor housing
Assemble the dual coaxial rotors and attach them to the main body
Complete the landing skids and any remaining detail parts
Mould King is a brand specializing in construction kits and building block sets, primarily targeting children and hobbyists. The brand focuses on mechanical and STEM-oriented models, including flight models, vehicles, and structures. Products are typically made from plastic and come in piece counts suited to intermediate builders.
A 274-piece plastic construction kit that builds into a coaxial helicopter model with dual rotors, designed for children aged 8 and up.
Recommended for ages 8 and up. The set contains no small parts that pose a choking hazard for younger children.
Durable plastic. The finished model weighs 318 g.
274 pieces, including fuselage parts, dual coaxial rotor assemblies, landing skids, and detail components.
The set is a static display model. It does not include a motor or battery — the coaxial design is for structural and mechanical demonstration purposes.
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