Re: B747 technical questions

Date:         01 Aug 97 04:04:19 
From:         "Michel Gammon" <jmgammon@sympatico.ca>
Organization: Sympatico
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JWizardC <jwizardc@aol.com> wrote in article
<airliners.1997.1564@ohare.Chicago.COM>...
> >For the 5th engine which can be installed on the pod under the wings
>
> To my knowledge, the only time a fifth engine has been added to the B-747
> is during testing of new engine designs; a la B777. In this case, the
> fifth engine can be and is used during flight.

The 5th engine (non-operational) is a standard method of ferrying engines
on the 747.  The Air India 747 which crashed in 1985 off Ireland was
carrying a 5th engine.

Mike Gammon