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    Leonardo da Vinci Helicopter

    # D-19PF
    $21.99

    One of Leonardo's most iconic images, the Aerial Screw (also known as the Helicopter) illustrates the ingenuity of da Vinci, and indicates (along with many other drawings!) his obsession with flying. While this idea may never have got off the ground, for some basic technical reasons, it gave us an insight into the different ways in which Leonardo considered the challenge of human powered flying, and defines him as an inventor well ahead of his time.

    While it is often referred to as a helicopter, the premise of the lift to make it rise is more like archimedes screw than the rotors of a helicopter. Our model uses one of the bevel gears he drew in his codices and creates a nice 2 to 1 increase in speed of the crankshaft, so the mast spins quickly, illustrating the manner in which this machine would have worked.

    Availability
    • Currently In Stock
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    Safety Information
      WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.
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    Product Features
    • All pieces are drilled and pegged for strength
    • The canopy and support structure can be removed for experimenting.
    • Lots of interesting information about the way it would have worked too!
    • Stands 38 cm (15 inches) tall and 23 cm (9 inches ) across.
    Product Specifications
    • Brand: Pathfinders.
    • Item Number: D-19PF.
    • Manufacturer Number: PF0011.
    • UPC: 718122199518.
    • Recommended for ages : 9 to 13+.
    • Gender: Both.
    Fundamentals
       
    -Shipping Estimate
    Local Pickup at Main Street Location: $0.00
    Local Delivery to Vancouver (City Limits): Local Delivery within Vancouver City Limits only. If you are not in Vancouver, please select a shipping rate below. $5.00
    Standard Shipping (Lower 48: 3-9 bus. days)$13.00
    Standard Shipping (2-9 business days)$14.00
    Express Shipping (approx. 1-2 business days)$17.70
    Priority Shipping (approx. Next Business Day)$19.90
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