Flex & Fly Plane Launcher
Bend, launch, and glide into the physics of flight! Build a launch lever that will send planes soaring, then put together a spring-powered runway for high-speed takeoff. Prepare your plane fleet, then bend and pose the wings to see how different angles (and airfoils!) affect your flight path. Ready to wing it?
Why it’s awesome
Ready for takeoff
Use a lever to launch your planes (just like in a real cockpit!).
See-through science
A clear window helps you see spring-powered action.
Pose and soar
Wings can be bent in tons of ways — and hold their shape!
What’s included?

Topics explored
Aerodynamics
Iterative design
From the desk of the product designer:
Behind the design
“To make the launcher feel more plane-y, we based its shape on an aircraft carrier, designed the launch level after an airplane throttle, and even cleared the runway markings with a coworker who has a pilot’s license!”
- KiwiCo Product Designer
By the numbers
12
Launcher prototypes
47
Planes flown in-office
65 ft
Longest distance flown
Reviews
4.7
8 reviews

Las
05/31/2025
Kit seemed fun. My son accidentally stretched out one of the springs while building it which then rendered the whole kit useless since we couldn’t get the spring back to how it was. Clearly user error but still was disappointing for him.

Barbara
04/08/2025
My nephew loved it and all the KiwiCo crates I’ve sent him over the years.

Jenna
11/26/2024
Huge hit with my son for his 9th birthday! Loved building it and played with it for hours following! Definitely one I foresee many many days/months of play and experimentation!

Ardene
10/18/2024
This was a fabulous crate for my first grade grandson. He was challenged by this project but was focused on getting it right. How delighted he is to have succeeded in completing this project. Love to see his resilience and joy!

sharon
10/06/2024
it is a Christmas present for a nine year old boy in Alaska and I know he will enjoy it, so I gotta pre buy so I can mail it.

Karen
10/02/2024
I sent this to my 7yo grandson and he loved it!!
Added