Helicopter Store Index
Welcome to Dragonfly Helicopter Store
I have bad news and good news about the EZ helicopter. For years I used cheap injection-molded black plastic propellers for the easy helicopters but they have disappeared. Kelvin.com makes a blue plastic propeller that is supposed to be the same and replace them, but the blue ones don't work for helicopters (they might work well for airplanes, though). That's the bad news.
I had already figured out how to make propellers from the curved strips of 2 liter bottles and I have instructions for those. Those propellers work much better than the old injection-molded propellers, but that was for building from scratch--quite a challenging project. What if I manufactured the difficult part: the propeller bearing? I have been making machines to make the parts for it and it's going well. I made it with kids in large groups and at public event and I finally got around to making a step by step instructional video. On a limited basis I am selling the complete helicopter kits for $1 each, which includes all materials: bearing, propellers, balsa fuselage, rubber motor and tool for cutting the slot. You can see the video and decide if you are interested. I will be tweaking it a bit so I do not have it as a final version on YouTube yet. But you can see it on my Google Drive here
https://drive.google.com/file/d/1sTdF1KsK_xG8X3A6xnReUfRzIk03JoXx/view?usp=sharing
Helicopter Kits
Click for full description.
20 inches of 1/8" wide Tan Super Sport rubber band, enough for replacement for 2 helicopters.
$3 includes shipping because I can just mail it in an envelope.
Not helicopters, but walkalong gliders are another great, engaging, low-cost flight project. How do they fly?
A Note About Payment (PayPal, Checks, Purchase Order)
PayPal
Embedded PayPal buttons for customer convenience and security have worked well and automatically convert currencies. When you click on a button, you go to a secure PayPal page. We use PayPal for security and convenience, and you don't need PayPal account to pay via PP with a credit card. All proceeds go directly to the non-profit, education organization, the Physics Factory.
Checks
If you send in a check, please make it out to Physics Factory. Feel free to contact me, Slater, with any questions.
Purchase Order
I like all feedback. If you have any pictures of video of your event, I am happy to share them with the world. I am starting a sharing page.