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Helicopters are cool, but air-powered helicopters are really cool. These balloon powered helicopters are great for outdoor or indoor fun, (if you have high ceilings.) Simply snap the blades on the hub, place the balloon on the included collar, then blow up the balloon and attach it. When you let go, air travels through the blades creating spin and lift, along with a giggle-invoking whistling sound. We've gotten these to fly over 20 feet high. Blow up the balloon again to relaunch. We think these would be perfect to demonstrate Bernoulli's Principle. They also make a great brithday party gift bag item.
Posted by JEF on 04 19 2016
These simple 'toys' are great fun and can be used in a variety of ways; highest, farthest, most accurate, with wind, without, etc.
Posted by Unknown on 08 20 2015
No instructions. Worked well outdoors from an elevated spot. Kept the kids entertained for a good amount of time.
Posted by Unknown on 07 27 2014
The product works well, but there were no instructions. For someone who is new to the product, this might be challenging.
Posted by Unknown on 11 19 2013
Performed as expected. Better used from a high, open area with room to descend. Students loved it and the sound it made was an unexpected surprise when discussing energy transformation.
Posted by Sue Kolesik on 08 19 2013
Love this! It actually keeps working after many uses. I will be purchasing more for gift exchanges.