Propeller-Powered Car





Introduction: Propeller-Powered Car

This car can travel up to 40ft on a smooth and flat surface!

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Step 1: Materials

Please message me to report broken links. All of these materials are used in my other Instructables for kids, so your purchases can be used across multiple projects.

Propellers with plastic mount (Larger pack)
1/8" dowel
Craft sticks
Craft cubes
Long rubber bands
Masking tape
Hot glue gun with safety nozzle

Hot glue sticks

Step 2: Make the Wheels

Step 3: Make the Propeller Shaft

Step 4: Assemble + Launch

Step 5: No-Glue Variation

The no-glue variation uses the same building system as the Geometric Shapes lesson. The low triangular frame is built by using a normal craft stick and two smaller pieces, each approximately 1/3 the length of a normal craft sticks.

The tip of the propeller is taped, which keeps the metal hook in place and allows the user to wind the propeller counter-clockwise. Winding the propeller counter-clockwise propels the car in the direction of the narrow end of its triangular frame.

Step 6: Tips and Troubleshooting

  • Remove any thin strands of dried glue before operating the car. "Hot glue strings" get tangled in the axle or propeller shaft.
  • Make sure the skewers (axles) are straight. These are mass produced and can be severely warped.
  • More rubberbands isn't always better. Too much energy can cause the car to spin wildly out of control.
  • Wide-set wheels are more stable than narrow ones. A narrow car may flip over from the torque generated by the rubber band.
  • The rubberbands may become loose over time. You can breath new life into old bands by unhooking them and tying one end into an overhand knot. Now the remaining band is shorter (and tighter) than before.

Please be sure to take video or photos if you do this project with your class and post it in the comments :)
Have fun teaching!



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3 Questions

Having trouble finding the wheels. They are currently unavailable on Amazon. Would you have other suggestions as to where I could find them?

What did you use to trim the ends of the dowels? Thank you!


yes i made it but without that thing..

Hi. What did you use instead of the eye hook? Thanks


Great idea!

What is the size of the craft cubes used? Thanks!

The materials list is updated with a link to the correct craft cube size

Thank you - looking forward to trying this project with fourth graders as part of a module on Variables.

You are awesome! I LOVE your instructables and can't wait to try some of these out with my 4th graders!

Please answer me . I have to make it fast

Hello,I am living in India so I could not get the material mentioned above specially propellers and wheel .So can you suggest within 2 or 3 days