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Product description:
This Balloon Helicopter is made of a latex balloon and a
plastic propeller. The most important feature is the hollow propeller hub which
directs air into a passage in each propeller blade.
The air jets in the blade tips causes the entire toy to spin, the blades have a positive angle of attack so the blades experience a lifting force as they push air downwards.
Blow up the balloon and attach the hub to the blade assembly and this jet reaction copter is all set to soar!
It can attain a height of approximately 12 meters.
With fresh balloons, it will fly about 2 stories high. Newton's Third Law has to be applied twice in order to explain the upward motion of the helicopter. The exhausted gases force the fan to rotate, driving the air downward. The reaction of wind, in turn, provides the lifting force for the helicopter.
The air jets in the blade tips causes the entire toy to spin, the blades have a positive angle of attack so the blades experience a lifting force as they push air downwards.
Blow up the balloon and attach the hub to the blade assembly and this jet reaction copter is all set to soar!
It can attain a height of approximately 12 meters.
With fresh balloons, it will fly about 2 stories high. Newton's Third Law has to be applied twice in order to explain the upward motion of the helicopter. The exhausted gases force the fan to rotate, driving the air downward. The reaction of wind, in turn, provides the lifting force for the helicopter.
Features:
Fun,
easy to use toy
Let
kids create their own helicopter
Great
for sparking imaginations
Inflate
the balloon and attach it to the propeller
It
whistles while it flies
Good
old fashioned playing fun
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