Leonardo da Vinci wooden model kit- Helicopter "Aerial Screw" & Catapult- NEW!

These 2 awesome kits are brand new, factory-sealed! You will receive:

Helicopter- a working re-creation of Leonardo da Vinci's 15th century "Aerial Screw". The Aerial Screw is one of Leonardo's most iconic drawings. This working model uses a bevel gear to spin the canopy and support structure. The canopy and support structure is removable.

Catapult- catapults were first invented in Ancient Greek and Roman times. Leonardo redesigned the catapult and used the spring-like energy stored in bent wood to give power to the swing arm.

Each kit:
is easy to make in about an hour

made of natural untreated wood

all pieces are pre-cut and ready to go

parts are pegged for extra strength

From a smoke-free home. I am will to sell the kits individually. Please check out my other items!