Prototype airliners; what is their fate?

Date:         24 Jan 98 02:53:48 
From:         onat@turbine.kuee.kyoto-u.ac.jp (Onat Ahmet)
Organization: Kyoto University, JAPAN
Followups:    1
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What happens to airliner prototypes? Do they eventually
get modified to production standards and sold to
airline companies, or do they stay with the maker till
the end?

Are they used for any purpose other than testing
this and that?

I guess it would cost the manufacturer a lot of money to
keep and maintain an aircraft (well, maybe not compared
to the development costs).

How many prototypes are usually needed till production
begins?

Thanks;

| Ahmet ONAT  Kyoto Univ. Japan                                 |
| E-mail    : onat@kuee.kyoto-u.ac.jp                           |
| WWW page  : http://turbine.kuee.kyoto-u.ac.jp/staff/onat.html |
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