We first decided to make the helicopter. While there were a few parts of the build that were a bit tricky, we were able to figure it out (only redoing a few of our mistakes). What makes the set extra cool is the motor that makes the final creation actually move. And, once we want to change things up, we can make the jet!
Turbo Jet 2-in-1 Buildingset: Build a supersonic jet, then build a heli-plane with rotating propellers. Over 400 K’NEX rods & connectors are included, plus a battery-powered motor. Build a jet with motorized, rolling wheels and an open-and-close cockpit! Then take it apart and build a heli-plane with working, motorized propellers that you can adjust to spin vertically or horizontally.
