How is a jet engine started?

Subject: How is a jet engine started?

Date: Tue Jul 21 09:28:12 1998
Posted by Simone
Grade level: 10-12
School: ITIS Q.Sella
City: Biella State/Province: BI
Country: Italy
Area of science: Engineering
ID: 901031292.Eg

Message:


I always wandered how a jet engine is started. I tried to look up in my 
encyclopedia for it, but I found only information about how a jet engine WORKS 
(I mean, I found that it compresses the air with a series of turbines, then the 
fuel is injected and ingnited), but not how the turbines start their rotation 
when the jet engine is "switched on". Is an electrical engine used? Or what 
else? Can you explain me it?

Re: How is a jet engine started?

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