Jump to content

Balloon helicopter: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
No edit summary
leave two blank lines between the first stub template and whatever precedes it per WP:STUBSPACING
 
(16 intermediate revisions by 11 users not shown)
Line 1: Line 1:
A '''balloon helicopter''' is a toy helicopter comprised of a latex [[balloon]] and a plastic [[propeller]]. The propeller is 20 seconds and can attain a height of approximately 12 meters (40 feet). if you dont konw what is it dont tell us to check what you have done..
A '''balloon helicopter''' is a flying toy consisting of a latex [[toy balloon]] and a plastic [[propeller (aircraft)|propeller]], derived from the simple [[balloon rocket]]. The most important feature is the hollow propeller hub which directs air into a passage in each propeller blade. The air passages channel air to the blade tips such that air escapes in a fine jet tangentially. The air jets on 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. It can attain a height of approximately 12 meters (40 feet). Full-scale helicopters have been built around this [[tip jet]] configuration.


==See also==
{{Toy-stub}}
* [[Balloon rocket]]
[[Category:Toys]]


== External links ==
[[de:Ballonhelikopter]]
* [http://video.google.com/videoplay?docid=1410167926297575940] Physics teacher Robert Douglas discusses Newton's Third Law and understanding force pairs with this demonstration using the Balloon Helicopter
* [https://www.youtube.com/watch?v=rtBWcSkpC3k] A demonstration video of assembly and launch.

[[Category:Educational toys]]
[[Category:Inflatable manufactured goods]]


{{Toy-stub}}

Latest revision as of 10:11, 18 October 2023

A balloon helicopter is a flying toy consisting of a latex toy balloon and a plastic propeller, derived from the simple balloon rocket. The most important feature is the hollow propeller hub which directs air into a passage in each propeller blade. The air passages channel air to the blade tips such that air escapes in a fine jet tangentially. The air jets on 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. It can attain a height of approximately 12 meters (40 feet). Full-scale helicopters have been built around this tip jet configuration.

See also

[edit]
[edit]
  • [1] Physics teacher Robert Douglas discusses Newton's Third Law and understanding force pairs with this demonstration using the Balloon Helicopter
  • [2] A demonstration video of assembly and launch.