Balloon helicopter
id:
balloon-helicopter-192-8797646
title:
Balloon helicopter
text:
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
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Balloon_helicopter
date created:
date modified:
2023-10-18T10:11:38Z
main entity:
{"identifier":"Q805327","url":"https://www.wikidata.org/entity/Q805327"}
image:
fields total:
13
integrity:
13