Free Shipping on Orders of $149 or More.

Learn more
0 Cart Menu


Inspired by the conceptual drawings of Leonardo da Vinci, these interactive models are as fun to build as they are to play with. The accurately cut and drilled wood parts need no edge sanding, and each kit can be assembled in about two hours, requiring only glue that you supply. Detailed instructions are provided.

The ornithopter (Greek for bird-winged) is a design for an aircraft that uses the arm and leg movements of a human pilot to flap birdlike wings, simulated in this model by turning a hand crank. Standing about 9" tall with a 23" wingspan, it is suitable for ages 9 and up.

The catapult is da Vinci's improvement of the designs that had been used for centuries. Unlike catapults of the time, which relied on heavy counterweights or twisted ropes, it uses the energy supplied by bending two wooden posts to launch its projectile. A ball of soft clay is included for ammunition. Standing about 10" tall when assembled, it is suitable for ages 12 and up.

The air screw is commonly thought to be a forefather of the modern helicopter. It consists of a helical sail held by a rigid frame, intended to provide lift for a flying platform. Turning the crank in the base makes the sail spin rapidly. Standing about 14 1/2" tall when assembled, it is suitable for ages 9 and up.

Great gifts for any modelmaker.

Ornithopter and air screw not available for shipment to Québec.

Product Availability At All Stores


Item Added to your cart

{{ products.length }} Items Added to your cart

Items in your cart

Product Title



QTY: 0


Share On Facebook Share via Email


Sign In

User Name is a required field.

Password is a required field.

Forgot password?

Benefits of creating an account:

Create an account

Please enter the username associated with your Lee Valley account and we will send you an email to reset your password.