PPRuNe Forums - View Single Post - Geared Turbofan

22nd April 2008 | 12:20

#19 (permalink)

barit1

Joined: Feb 2005

Posts: 4,581

Likes: 0

From: flyover country USA

For what it's worth:

Typical helo overall gear ratio: 40:1

Typical turboprop ratio: 14:1

Probable GTF ratio: 2:1

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