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Library > Science & Technology > Technology > Inventions

Helicopters, Workhorses of the sky

2007
Explain two different designs of helicopters and the working functions of each design. Concentrate on the two inventors for each design, the diasadvantages, function and appearances of each.

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Team

Zita Weitsz


Liezl heinen


Christo Cronjé


F. J.v. Rensburg


JP Kotze


GAvin Pagel


Age Range

19 & under

Coaches

Erika Esterhuizen


Category

Science & Technology > Technology > Inventions

Audience

All ages

Language

English